ZHCSG60A February   2017  – March 2017 ADC32RF44

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 AC Performance Characteristics
    7. 7.7 Digital Requirements
    8. 7.8 Timing Requirements
    9. 7.9 Typical Characteristics
  8. Parameter Measurement Information
    1. 8.1 Input Clock Diagram
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Analog Inputs
        1. 9.3.1.1 Input Clamp Circuit
      2. 9.3.2  Clock Input
      3. 9.3.3  SYSREF Input
        1. 9.3.3.1 Using SYSREF
        2. 9.3.3.2 Frequency of the SYSREF Signal
      4. 9.3.4  DDC Block
        1. 9.3.4.1 Operating Mode: Receiver
        2. 9.3.4.2 Operating Mode: Wide-Bandwidth Observation Receiver
        3. 9.3.4.3 Decimation Filters
          1. 9.3.4.3.1  Divide-by-4
          2. 9.3.4.3.2  Divide-by-6
          3. 9.3.4.3.3  Divide-by-8
          4. 9.3.4.3.4  Divide-by-9
          5. 9.3.4.3.5  Divide-by-10
          6. 9.3.4.3.6  Divide-by-12
          7. 9.3.4.3.7  Divide-by-16
          8. 9.3.4.3.8  Divide-by-18
          9. 9.3.4.3.9  Divide-by-20
          10. 9.3.4.3.10 Divide-by-24
          11. 9.3.4.3.11 Divide-by-32
          12. 9.3.4.3.12 Latency with Decimation Options
        4. 9.3.4.4 Digital Multiplexer (MUX)
        5. 9.3.4.5 Numerically-Controlled Oscillators (NCOs) and Mixers
      5. 9.3.5  NCO Switching
      6. 9.3.6  SerDes Transmitter Interface
      7. 9.3.7  Eye Diagrams
      8. 9.3.8  Alarm Outputs: Power Detectors for AGC Support
        1. 9.3.8.1 Absolute Peak Power Detector
        2. 9.3.8.2 Crossing Detector
        3. 9.3.8.3 RMS Power Detector
        4. 9.3.8.4 GPIO AGC MUX
      9. 9.3.9  Power-Down Mode
      10. 9.3.10 ADC Test Pattern
        1. 9.3.10.1 Digital Block
        2. 9.3.10.2 Transport Layer
        3. 9.3.10.3 Link Layer
    4. 9.4 Device Functional Modes
      1. 9.4.1 Device Configuration
      2. 9.4.2 JESD204B Interface
        1. 9.4.2.1 JESD204B Initial Lane Alignment (ILA)
        2. 9.4.2.2 JESD204B Frame Assembly
        3. 9.4.2.3 JESD204B Frame Assembly in Bypass Mode
        4. 9.4.2.4 JESD204B Frame Assembly with Decimation (Single-Band DDC): Complex Output
        5. 9.4.2.5 JESD204B Frame Assembly with Decimation (Single-Band DDC): Real Output
        6. 9.4.2.6 JESD204B Frame Assembly with Decimation (Single-Band DDC): Real Output
        7. 9.4.2.7 JESD204B Frame Assembly with Decimation (Dual-Band DDC): Complex Output
        8. 9.4.2.8 JESD204B Frame Assembly with Decimation (Dual-Band DDC): Real Output
      3. 9.4.3 Serial Interface
        1. 9.4.3.1 Serial Register Write: Analog Bank
        2. 9.4.3.2 Serial Register Readout: Analog Bank
        3. 9.4.3.3 Serial Register Write: Digital Bank
        4. 9.4.3.4 Serial Register Readout: Digital Bank
        5. 9.4.3.5 Serial Register Write: Decimation Filter and Power Detector Pages
    5. 9.5 Register Maps
      1. 9.5.1  Example Register Writes
      2. 9.5.2  Register Descriptions
        1. 9.5.2.1 General Registers
          1. 9.5.2.1.1 Register 000h (address = 000h), General Registers
          2. 9.5.2.1.2 Register 002h (address = 002h), General Registers
          3. 9.5.2.1.3 Register 003h (address = 003h), General Registers
          4. 9.5.2.1.4 Register 004h (address = 004h), General Registers
          5. 9.5.2.1.5 Register 010h (address = 010h), General Registers
          6. 9.5.2.1.6 Register 011h (address = 011h), General Registers
          7. 9.5.2.1.7 Register 012h (address = 012h), General Registers
      3. 9.5.3  Master Page (M = 0)
        1. 9.5.3.1 Register 020h (address = 020h), Master Page
        2. 9.5.3.2 Register 032h (address = 032h), Master Page
        3. 9.5.3.3 Register 039h (address = 039h), Master Page
        4. 9.5.3.4 Register 03Ch (address = 03Ch), Master Page
        5. 9.5.3.5 Register 05Ah (address = 05Ah), Master Page
        6. 9.5.3.6 Register 03Dh (address = 3Dh), Master Page
        7. 9.5.3.7 Register 057h (address = 057h), Master Page
        8. 9.5.3.8 Register 058h (address = 058h), Master Page
      4. 9.5.4  ADC Page (FFh, M = 0)
        1. 9.5.4.1 Register 03Fh (address = 03Fh), ADC Page
        2. 9.5.4.2 Register 042h (address = 042h), ADC Page
      5. 9.5.5  Digital Function Page (610000h, M = 1 for Channel A and 610100h, M = 1 for Channel B)
        1. 9.5.5.1 Register A6h (address = 0A6h), Digital Function Page
      6. 9.5.6  Offset Corr Page Channel A (610000h, M = 1)
        1. 9.5.6.1 Register 034h (address = 034h), Offset Corr Page Channel A
        2. 9.5.6.2 Register 068h (address = 068h), Offset Corr Page Channel A
      7. 9.5.7  Offset Corr Page Channel B (610000h, M = 1)
        1. 9.5.7.1 Register 068h (address = 068h), Offset Corr Page Channel B
      8. 9.5.8  Digital Gain Page (610005h, M = 1 for Channel A and 610105h, M = 1 for Channel B)
        1. 9.5.8.1 Register 0A6h (address = 0A6h), Digital Gain Page
      9. 9.5.9  Main Digital Page Channel A (680000h, M = 1)
        1. 9.5.9.1 Register 000h (address = 000h), Main Digital Page Channel A
        2. 9.5.9.2 Register 0A2h (address = 0A2h), Main Digital Page Channel A
      10. 9.5.10 Main Digital Page Channel B (680100h, M = 1)
        1. 9.5.10.1 Register 000h (address = 000h), Main Digital Page Channel B
        2. 9.5.10.2 Register 0A2h (address = 0A2h), Main Digital Page Channel B
      11. 9.5.11 JESD Digital Page (6900h, M = 1)
        1. 9.5.11.1  Register 001h (address = 001h), JESD Digital Page
        2. 9.5.11.2  Register 002h (address = 002h ), JESD Digital Page
        3. 9.5.11.3  Register 003h (address = 003h), JESD Digital Page
        4. 9.5.11.4  Register 004h (address = 004h), JESD Digital Page
        5. 9.5.11.5  Register 006h (address = 006h), JESD Digital Page
        6. 9.5.11.6  Register 007h (address = 007h), JESD Digital Page
        7. 9.5.11.7  Register 016h (address = 016h), JESD Digital Page
        8. 9.5.11.8  Register 017h (address = 017h), JESD Digital Page
        9. 9.5.11.9  Register 032h-035h (address = 032h-035h), JESD Digital Page
        10. 9.5.11.10 Register 036h (address = 036h), JESD Digital Page
        11. 9.5.11.11 Register 037h (address = 037h), JESD Digital Page
        12. 9.5.11.12 Register 03Eh (address = 03Eh), JESD Digital Page
      12. 9.5.12 Decimation Filter Page
        1. 9.5.12.1  Register 000h (address = 000h), Decimation Filter Page
        2. 9.5.12.2  Register 001h (address = 001h), Decimation Filter Page
        3. 9.5.12.3  Register 002h (address = 2h), Decimation Filter Page
        4. 9.5.12.4  Register 005h (address = 005h), Decimation Filter Page
        5. 9.5.12.5  Register 006h (address = 006h), Decimation Filter Page
        6. 9.5.12.6  Register 007h (address = 007h), Decimation Filter Page
        7. 9.5.12.7  Register 008h (address = 008h), Decimation Filter Page
        8. 9.5.12.8  Register 009h (address = 009h), Decimation Filter Page
        9. 9.5.12.9  Register 00Ah (address = 00Ah), Decimation Filter Page
        10. 9.5.12.10 Register 00Bh (address = 00Bh), Decimation Filter Page
        11. 9.5.12.11 Register 00Ch (address = 00Ch), Decimation Filter Page
        12. 9.5.12.12 Register 00Dh (address = 00Dh), Decimation Filter Page
        13. 9.5.12.13 Register 00Eh (address = 00Eh), Decimation Filter Page
        14. 9.5.12.14 Register 00Fh (address = 00Fh), Decimation Filter Page
        15. 9.5.12.15 Register 010h (address = 010h), Decimation Filter Page
        16. 9.5.12.16 Register 011h (address = 011h), Decimation Filter Page
        17. 9.5.12.17 Register 014h (address = 014h), Decimation Filter Page
        18. 9.5.12.18 Register 016h (address = 016h), Decimation Filter Page
        19. 9.5.12.19 Register 01Eh (address = 01Eh), Decimation Filter Page
        20. 9.5.12.20 Register 01Fh (address = 01Fh), Decimation Filter Page
        21. 9.5.12.21 Register 033h-036h (address = 033h-036h), Decimation Filter Page
        22. 9.5.12.22 Register 037h (address = 037h), Decimation Filter Page
        23. 9.5.12.23 Register 038h (address = 038h), Decimation Filter Page
        24. 9.5.12.24 Register 039h (address = 039h), Decimation Filter Page
        25. 9.5.12.25 Register 03Ah (address = 03Ah), Decimation Filter Page
      13. 9.5.13 Power Detector Page
        1. 9.5.13.1  Register 000h (address = 000h), Power Detector Page
        2. 9.5.13.2  Register 001h-002h (address = 001h-002h), Power Detector Page
        3. 9.5.13.3  Register 003h (address = 003h), Power Detector Page
        4. 9.5.13.4  Register 007h-00Ah (address = 007h-00Ah), Power Detector Page
        5. 9.5.13.5  Register 00Bh-00Ch (address = 00Bh-00Ch), Power Detector Page
        6. 9.5.13.6  Register 00Dh (address = 00Dh), Power Detector Page
        7. 9.5.13.7  Register 00Eh (address = 00Eh), Power Detector Page
        8. 9.5.13.8  Register 00Fh, 010h-012h, and 016h-019h (address = 00Fh, 010h-012h, and 016h-019h), Power Detector Page
        9. 9.5.13.9  Register 013h-01Ah (address = 013h-01Ah), Power Detector Page
        10. 9.5.13.10 Register 01Dh-01Eh (address = 01Dh-01Eh), Power Detector Page
        11. 9.5.13.11 Register 020h (address = 020h), Power Detector Page
        12. 9.5.13.12 Register 021h (address = 021h), Power Detector Page
        13. 9.5.13.13 Register 022h-025h (address = 022h-025h), Power Detector Page
        14. 9.5.13.14 Register 027h (address = 027h), Power Detector Page
        15. 9.5.13.15 Register 02Bh (address = 02Bh), Power Detector Page
        16. 9.5.13.16 Register 037h (address = 037h), Power Detector Page
        17. 9.5.13.17 Register 038h (address = 038h), Power Detector Page
        18. 9.5.13.18 Power Detector Page (Direct Addressing, 16-Bit Address, 5400h)
          1. 9.5.13.18.1 Register 032h-035h (address = 032h-035h), Power Detector Page
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Start-Up Sequence
      2. 10.1.2 Hardware Reset
      3. 10.1.3 SNR and Clock Jitter
        1. 10.1.3.1 External Clock Phase Noise Consideration
      4. 10.1.4 Power Consumption in Different Modes
      5. 10.1.5 Using DC Coupling in the ADC32RF44
        1. 10.1.5.1 Bypassing the Offset Corrector Block
          1. 10.1.5.1.1 Effect of Temperature
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
        1. 10.2.1.1 Transformer-Coupled Circuits
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 文档支持
      1. 13.1.1 相关文档
    2. 13.2 接收文档更新通知
    3. 13.3 社区资源
    4. 13.4 商标
    5. 13.5 静电放电警告
    6. 13.6 Glossary
  14. 14机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

Specifications

Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Supply voltage range AVDD19 –0.3 2.1 V
AVDD –0.3 1.4
DVDD –0.3 1.4
Voltage applied to input pins INAP, INAM and INBP, INBM –0.3 AVDD19 + 0.3 V
CLKINP, CLKINM –0.3 AVDD + 0.6
SYSREFP, SYSREFM, SYNCBP, SYNCBM –0.3 AVDD + 0.6
SCLK, SEN, SDIN, RESET, PDN, GPIO1, GPIO2, GPIO3, GPIO4 –0.2 AVDD19 + 0.2
Voltage applied to output pins –0.3 2.2 V
Temperature Operating free-air, TA –40 85 °C
Storage, Tstg –65 150
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±1000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±500
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
Supply voltage(2) AVDD19 1.8 1.9 2.0 V
AVDD 1.1 1.15 1.25
DVDD 1.1 1.15 1.2
Temperature Operating free-air, TA –40 85 °C
Operating junction, TJ 105(1) 125
Prolonged use above this junction temperature may increase the device failure-in-time (FIT) rate.
Always power up the DVDD supply (1.15 V) before the AVDD19 (1.9 V) supply. The AVDD (1.15 V) supply can come up in any order.

Thermal Information

THERMAL METRIC(1) ADC32RF44 UNIT
RMP (VQFN)
72 PINS
RθJA Junction-to-ambient thermal resistance 21.8 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 4.4 °C/W
RθJB Junction-to-board thermal resistance 2.0 °C/W
ψJT Junction-to-top characterization parameter 0.1 °C/W
ψJB Junction-to-board characterization parameter 2.0 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 0.2 °C/W
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.

Electrical Characteristics

typical values are specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C; and ADC sampling rate = 2.6 GHz, 50% clock duty cycle, AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER CONSUMPTION(4) (Dual-Channel Operation, Both Channels A and B are Active; DDC Bypass Mode(3))
IAVDD19 1.9-V analog supply current 12-bit, bypass mode, fS = 2.6 GSPS 1730 1969 mA
IAVDD 1.15-V analog supply current 12-bit, bypass mode, fS = 2.6 GSPS 860 1079 mA
IDVDD 1.15-V digital supply current 12-bit, bypass mode, fS = 2.6 GSPS 1416 1846 mA
PD Power dissipation 12-bit, bypass mode, fS = 2.6 GSPS 5.9 6.95 W
Global power-down power dissipation 360 mW
ANALOG INPUTS
Resolution 14 Bits
Differential input full-scale 1.35 VPP
VIC Input common-mode voltage 1.2(5) V
RIN Input resistance Differential resistance at dc 65 Ω
CIN Input capacitance Differential capacitance at dc 2 pF
VCM common-mode voltage output 1.2 V
Analog input bandwidth
(–3-dB point)
ADC driven with 50-Ω source 3200 MHz
ISOLATION
Crosstalk isolation between channel A and channel B(1) fIN = 100 MHz 100 dBc
fIN = 900 MHz 99
fIN = 1800 MHz 95
fIN = 2700 MHz 86
fIN = 3500 MHz 85
CLOCK INPUT(2)
Input clock frequency 1.5 2.6 GHz
Differential (peak-to-peak) input clock amplitude 0.5 1.5 2.5 VPP
Input clock duty cycle 45% 50% 55%
Internal clock biasing 1.0 V
Internal clock termination (differential) 100 Ω
Crosstalk is measured with a –2-dBFS input signal on aggressor channel and no input on the victim channel.
See Figure 57.
Full-scale signal is applied to the analog inputs of all active channels.
See the Power Consumption in Different Modes section for more details.
When used in dc-coupling mode, the common-mode voltage at the analog inputs should be kept within VCM ±25 mV for best performance.

AC Performance Characteristics

typical values specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C; and ADC sampling rate = 2.6 GHz, 50% clock duty cycle, AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN(3) NOM MAX UNIT
SNR Signal-to-noise ratio fIN = 100 MHz, AOUT = –2 dBFS 62.5 dBFS
fIN = 900 MHz, AOUT = –2 dBFS 61.2
fIN = 1850 MHz, AOUT = –2 dBFS 55.5 58.3
fIN = 2100 MHz, AOUT = –2 dBFS 57.5
fIN = 2500 MHz, AOUT = –2 dBFS 56.4
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 54.0
NSD Noise spectral density averaged across the Nyquist zone fIN = 100 MHz, AOUT = –2 dBFS 153.6 dBFS/Hz
fIN = 900 MHz, AOUT = –2 dBFS 152.3
fIN = 1850 MHz, AOUT = –2 dBFS 146.1 149.4
fIN = 2100 MHz, AOUT = –2 dBFS 148.6
fIN = 2500 MHz, AOUT = –2 dBFS 147.5
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 145.1
Small-signal SNR fIN = 1850 MHz, AOUT = –40 dBFS 63.1 dBFS
NF(1) Input noise figure fIN = 1850 MHz, AOUT = –40 dBFS 24.7 dB
SINAD Signal-to-noise and distortion ratio fIN = 100 MHz, AOUT = –2 dBFS 61.8 dBFS
fIN = 900 MHz, AOUT = –2 dBFS 60.0
fIN = 1850 MHz, AOUT = –2 dBFS 58.0
fIN = 2100 MHz, AOUT = –2 dBFS 56.5
fIN = 2500 MHz, AOUT = –2 dBFS 54.7
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 53.2
ENOB Effective number of bits fIN = 100 MHz, AOUT = –2 dBFS 10.0 Bits
fIN = 900 MHz, AOUT = –2 dBFS 9.7
fIN = 1850 MHz, AOUT = –2 dBFS 9.3
fIN = 2100 MHz, AOUT = –2 dBFS 9.1
fIN = 2500 MHz, AOUT = –2 dBFS 8.8
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 8.5
SFDR Spurious-free dynamic range fIN = 100 MHz, AOUT = –2 dBFS 68.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 65.0
fIN = 1850 MHz, AOUT = –2 dBFS 60 69.0
fIN = 2100 MHz, AOUT = –2 dBFS 62.0
fIN = 2500 MHz, AOUT = –2 dBFS 59.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 57.0
HD2(4) Second-order harmonic distortion fIN = 100 MHz, AOUT = –2 dBFS 68.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 74.0
fIN = 1850 MHz, AOUT = –2 dBFS 60 69.0
fIN = 2100 MHz, AOUT = –2 dBFS 62.0
fIN = 2500 MHz, AOUT = –2 dBFS 62.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 57.0
HD3 Third-order harmonic distortion fIN = 100 MHz, AOUT = –2 dBFS 84.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 65.0
fIN = 1850 MHz, AOUT = –2 dBFS 62.5 74.0
fIN = 2100 MHz, AOUT = –2 dBFS 67.0
fIN = 2500 MHz, AOUT = –2 dBFS 59.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 72.0
HD4, HD5 Fourth- and fifth-order harmonic distortion fIN = 100 MHz, AOUT = –2 dBFS 92.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 82.0
fIN = 1850 MHz, AOUT = –2 dBFS 69.5 86.0
fIN = 2100 MHz, AOUT = –2 dBFS 87.0
fIN = 2500 MHz, AOUT = –2 dBFS 90.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 87.0
IL spur Interleaving spurs:
fS / 2 – fIN,
fS / 4 ± fIN
fIN = 100 MHz, AOUT = –2 dBFS 93.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 88.0
fIN = 1850 MHz, AOUT = –2 dBFS 66.5 80.0
fIN = 2100 MHz, AOUT = –2 dBFS 85.0
fIN = 2500 MHz, AOUT = –2 dBFS 81.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 75.0
HD2 IL Interleaving spur for HD2:
fS / 2 – HD2
fIN = 100 MHz, AOUT = –2 dBFS 83.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 82.0
fIN = 1850 MHz, AOUT = –2 dBFS 68 80.0
fIN = 2100 MHz, AOUT = –2 dBFS 75.0
fIN = 2500 MHz, AOUT = –2 dBFS 77.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 77.0
Worst spur Spurious-free dynamic range (excluding HD2, HD3, HD4, HD5, and interleaving spurs IL and HD2 IL) fIN = 100 MHz, AOUT = –2 dBFS 79.0 dBc
fIN = 900 MHz, AOUT = –2 dBFS 79.0
fIN = 1850 MHz, AOUT = –2 dBFS 74.0
fIN = 2100 MHz, AOUT = –2 dBFS 72.0
fIN = 2500 MHz, AOUT = –2 dBFS 72.0
fIN = 3500 MHz, AOUT(2) = –3 dBFS with 2-dB gain 69.0
IMD3 Two-tone, third-order intermodulation distortion fIN1 = 900 MHz, fIN2 = 960 MHz,
AOUT = –8 dBFS (each tone)
82 dBFS
fIN1 = 1850 MHz, fIN2 = 1870 MHz,
AOUT = –8 dBFS (each tone)
72
fIN1 = 3490 MHz, fIN2 = 3510 MHz,
AOUT = –8 dBFS (each tone) with 2-dB gain
69
The ADC internal resistance = 65 Ω, the driving source resistance = 50 Ω.
Output amplitude, AOUT, refers to the signal amplitude in the ADC digital output that is same as the analog input amplitude, AIN, except when the digital gain feature is used. If digital gain is G, then AOUT = G + AIN.
Minimum values are specified at AOUT = –3 dBFS, ADC sampling rate = 2.5 GHz.
The minimum value of HD2 is specified by bench characterization.

Digital Requirements

typical values are specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C; and ADC sampling rate = 2.6 GHz, 50% clock duty cycle, AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
DIGITAL INPUTS (RESET, SCLK, SEN, SDIN, PDN, GPIO1, GPIO2, GPIO3, GPIO4)
VIH High-level input voltage 0.8 V
VIL Low-level input voltage 0.4 V
IIH High-level input current 50 µA
IIL Low-level input current –50 µA
Ci Input capacitance 4 pF
DIGITAL OUTPUTS (SDOUT, GPIO1, GPIO2, GPIO3, GPIO4)
VOH High-level output voltage AVDD19–0.1 AVDD19 V
VOL Low-level output voltage 0.1 V
DIGITAL INPUTS (SYSREFP and SYSREFM; SYNCBP and SYNCBM; Requires External Biasing)
VID Differential input voltage 350 450 800 mVPP
VCM Input common-mode voltage 1.05 1.2 1.325 V
DIGITAL OUTPUTS (JESD204B Interface: DA[3:0], DB[3:0], Meets JESD204B LV-0IF-11G-SR Standard)
|VOD| Output differential voltage 700 mVPP
|VOCM| Output common-mode voltage 450 mV
Transmitter short-circuit current Transmitter pins shorted to any voltage between –0.25 V and 1.45 V –100 100 mA
zos Single-ended output impedance 50 Ω
Co Output capacitance Output capacitance inside the device,
from either output to ground
2 pF

Timing Requirements

typical values are specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C; and ADC sampling rate = 2.6 GHz, 50% clock duty cycle, AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted)
MIN NOM MAX UNIT
SAMPLE TIMING
Aperture delay 250 750 ps
Aperture delay matching between two channels on the same device ±15 ps
Aperture delay matching between two devices at the same
temperature and supply voltage
±150 ps
Aperture jitter, clock amplitude = 2 VPP 90 fS
Latency
(1)(3)
Data latency, ADC sample to digital output 12-bit bypass mode, LMFS = 82820 461 Input clock cycles
14-bit bypass mode, LMFS = 8224 424 Input clock cycles
Fast overrange latency, ADC sample to FOVR indication on GPIO pins 70
tPD Propagation delay time: logic gates and output buffer delay
(does not change with fS)
6 ns
SYSREF TIMING(2)
tSU_SYSREF SYSREF setup time: referenced to clock rising edge, 2.6 GSPS 140 70 ps
tH_SYSREF SYSREF hold time: referenced to clock rising edge, 2.6 GSPS 50 20 ps
Valid transition window sampling period: tSU_SYSREF – tH_SYSREF, 2.6 GSPS 194 ps
JESD OUTPUT INTERFACE TIMING
UI Unit interval: 12.5 Gbps 80 100 400 ps
Serial output data rate 2.5 10.0 12.5 Gbps
Rise, fall times: 1-pF, single-ended load capacitance to ground 60 ps
Total jitter: BER of 1E-15 and lane rate = 12.5 Gbps 25 %UI
Random jitter: BER of 1E-15 and lane rate = 12.5 Gbps 0.99 %UI, rms
Deterministic jitter: BER of 1E-15 and lane rate = 12.5 Gbps 9.1 %UI,
pk-pk
Overall latency = latency + tPD.
Common-mode voltage for the SYSREF input is kept at 1.2 V.
Latency increases when the DDC modes are used; see Table 4.
ADC32RF44 digital_inpt_outpts_sbas747.gif
VOCM is not the same as VICM. Similarly, VOD is not the same as VID.
Figure 1. Logic Levels for Digital Inputs and Outputs
ADC32RF44 tmg_rqrmnts_dgm_sbas747.gif Figure 2. SYSREF Timing Diagram

Typical Characteristics

typical values are specified at an ambient temperature of 25°C; minimum and maximum values are specified over an ambient temperature range of –40°C to +85°C; and ADC sampling rate = 2.6 GHz, 50% clock duty cycle, AVDD19 = 1.9 V, AVDD = 1.15 V, DVDD = 1.15 V, –2-dBFS differential input, and 0-dB digital gain (unless otherwise noted)
ADC32RF44 D001_SBAS809.gif
SFDR = 68 dBc, SNR = 62.7 dBFS, SINAD = 62 dBFS,
THD = 68 dBc, HD2 = –68 dBc, HD3 = –83 dBc,
SFDR (non HD2, HD3) = 74 dBc, IL spur = 83 dBc
Figure 3. FFT for 100-MHz Input Signal
ADC32RF44 D003_SBAS809.gif
SFDR = 71 dBc, SNR = 58.5 dBFS, SINAD = 58.2 dBFS,
THD = 70 dBc, HD2 = –76 dBc, HD3 = –71 dBc,
SFDR (non HD2, HD3) = 74 dBc, IL spur = 77 dBc
Figure 5. FFT for 1850-MHz Input Signal
ADC32RF44 D005_SBAS809.gif
SFDR = 59 dBc, SNR = 56.3 dBFS, SINAD = 54.2 dBFS,
THD = 56 dBc, HD2 = –59 dBc, HD3 = –60 dBc,
SFDR (non HD2, HD3) = 69 dBc, IL spur = 72 dBc
Figure 7. FFT for 2500-MHz Input Signal
ADC32RF44 D007_SBAS809.gif
fIN1 = 900 MHz, fIN2 = 960 MHz,
AIN = –8 dBFS, IMD = 81 dBFS
Figure 9. FFT for Two-Tone Input Signal (–8 dBFS)
ADC32RF44 D009_SBAS809.gif
fIN1 = 1850 MHz, fIN2 = 1870 MHz,
AIN = –8 dBFS, IMD = 74 dBFS
Figure 11. FFT for Two-Tone Input Signal (–8 dBFS)
ADC32RF44 D011_SBAS809.gif
fIN1 = 3490 MHz, fIN2 = 3510 MHz,
AIN = –8 dBFS with 2-dB gain, IMD = 68 dBFS
Figure 13. FFT for Two-Tone Input Signal (–8 dBFS)
ADC32RF44 D013_SBAS809.gif
fIN1 = 900 MHz, fIN2 = 960 MHz
Figure 15. Intermodulation Distortion vs Input Amplitude (900 MHz and 960 MHz)
ADC32RF44 D015_SBAS809.gif
fIN1 = 3490 MHz, fIN2 = 3510 MHz
Figure 17. Intermodulation Distortion vs Input Amplitude (3490 MHz and 3510 MHz)
ADC32RF44 D017_SBAS809.gif
AOUT = –2 dBFS with 0-dB gain for fIN less than 3 GHz,
AOUT = –3 dBFS with 2-dB gain for fIN more than 3 GHz
Figure 19. IL Spur vs Input Frequency
ADC32RF44 D019_SBAS809.gif
fIN = 1850 MHz, AIN = –2 dBFS
Figure 21. Signal-to-Noise Ratio vs AVDD Supply and Temperature
ADC32RF44 D021_SBAS809.gif
fIN = 3500 MHz, AIN = –3 dBFS with 2-dB digital gain
Figure 23. Signal-to-Noise Ratio vs AVDD Supply and Temperature
ADC32RF44 D023_SBAS809.gif
fIN = 1850 MHz, AIN = –2 dBFS
Figure 25. Signal-to-Noise Ratio vs DVDD Supply and Temperature
ADC32RF44 D025_SBAS809.gif
fIN = 3500 MHz, AIN = –3 dBFS with 2-dB digital gain
Figure 27. Signal-to-Noise Ratio vs DVDD Supply and Temperature
ADC32RF44 D027_SBAS809.gif
fIN = 1850 MHz, AIN = –2 dBFS
Figure 29. Signal-to-Noise Ratio vs AVDD19 Supply and Temperature
ADC32RF44 D029_SBAS809.gif
fIN = 3500 MHz, AIN = –3 dBFS with 2-dB digital gain
Figure 31. Signal-to-Noise Ratio vs AVDD19 Supply and Temperature
ADC32RF44 D031_SBAS809.gif
fIN = 1.85 GHz, AOUT = –2 dBFS, AVDD19 = 1.8 V,
ADC sampling rate = 2.5 GHz
Figure 33. HD2 Histogram at AVDD19 = 1.8 V
ADC32RF44 D033_SBAS809.gif
fIN = 1.85 GHz, AOUT = –2 dBFS, AVDD19 = 2.0 V,
ADC sampling rate = 2.5 GHz
Figure 35. HD2 Histogram at AVDD19 = 2.0 V
ADC32RF44 D035_SBAS809.gif
fIN = 3.5 GHz, 2-dB digital gain
Figure 37. Performance vs Amplitude
ADC32RF44 D037_SBAS809.gif
fIN = 3.5 GHz, AIN = –3 dBFS with 2-dB digital gain,
ADC sampling rate = 2.5 GHz
Figure 39. Performance vs Clock Amplitude
ADC32RF44 D039_SBAS809.gif
fIN = 3.5 GHz, AIN = –3 dBFS with 2-dB digital gain,
ADC sampling rate = 2.5 GHz
Figure 41. Performance vs Clock Duty Cycle
ADC32RF44 D041_SBAS809.gif
ADC sampling rate = 2.5 GHz
Figure 43. Power-Supply Rejection Ratio vs Supplies
ADC32RF44 D043_SBAS809.gif
ADC sampling rate = 2.5 GHz
Figure 45. Common-Mode Rejection Ratio vs Signal Frequency
ADC32RF44 D045_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 61 dBFS, SFDR (includes IL) = 72 dBc
Figure 47. FFT in 6X Decimation
ADC32RF44 D047_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 61.5 dBFS, SFDR (includes IL) = 73 dBc
Figure 49. FFT in 9X Decimation
ADC32RF44 D049_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 62.7 dBFS, SFDR (includes IL) = 80 dBc
Figure 51. FFT in 12X Decimation
ADC32RF44 D051_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 63.2 dBFS, SFDR (includes IL) = 79 dBc
Figure 53. FFT in 18X Decimation
ADC32RF44 D053_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 63.7 dBFS, SFDR (includes IL) = 79 dBc
Figure 55. FFT in 24X Decimation
ADC32RF44 D002_SBAS809.gif
SFDR = 63 dBc, SNR = 61.3 dBFS, SINAD = 59.8 dBFS,
THD = 63 dBc, HD2 = –72 dBc, HD3 = –63 dBc,
SFDR (non HD2, HD3) = 79 dBc, IL spur = 76 dBc
Figure 4. FFT for 900-MHz Input Signal
ADC32RF44 D004_SBAS809.gif
SFDR = 63 dBc, SNR = 57.5 dBFS, SINAD = 56.5 dBFS,
THD = 61 dBc, HD2 = –65 dBc, HD3 = –63 dBc,
SFDR (non HD2, HD3) = 72 dBc, IL spur = 72 dBc
Figure 6. FFT for 2100-MHz Input Signal
ADC32RF44 D006_SBAS809.gif
SFDR = 64 dBc, SNR = 54.1 dBFS, SINAD = 53.9 dBFS,
HD2 = –64 dBc, HD3 = –88 dBc,
SFDR (non HD2, HD3) = 72 dBc, THD = 64 dBc,
IL spur = 77 dBc, AIN = –3 dBFS with 2-dB gain
Figure 8. FFT for 3500-MHz Input Signal
ADC32RF44 D008_SBAS809.gif
fIN1 = 900 MHz, fIN2 = 960 MHz,
AIN = –36 dBFS, IMD = 96 dBFS
Figure 10. FFT for Two-Tone Input Signal (–36 dBFS)
ADC32RF44 D010_SBAS809.gif
fIN1 = 1850 MHz, fIN2 = 1870 MHz,
AIN = –36 dBFS, IMD = 94 dBFS
Figure 12. FFT for Two-Tone Input Signal (–36 dBFS)
ADC32RF44 D012_SBAS809.gif
fIN1 = 3490 MHz, fIN2 = 3510 MHz,
AIN = –36 dBFS with 2-dB gain, IMD = 89 dBFS
Figure 14. FFT for Two-Tone Input Signal (–36 dBFS)
ADC32RF44 D014_SBAS809.gif
fIN1 = 1850 MHz, fIN2 = 1870 MHz
Figure 16. Intermodulation Distortion vs Input Amplitude (1850 MHz and 1870 MHz)
ADC32RF44 D016_SBAS809.gif
AOUT = –2 dBFS with 0-dB gain for fIN less than 3 GHz,
AOUT = –3 dBFS with 2-dB gain for fIN more than 3 GHz
Figure 18. Spurious-Free Dynamic Range vs Input Frequency
ADC32RF44 D018_SBAS809.gif
AOUT = –2 dBFS with 0-dB gain for fIN less than 3 GHz,
AOUT = –3 dBFS with 2-dB gain for fIN more than 3 GHz
Figure 20. Signal-to-Noise Ratio vs Input Frequency
ADC32RF44 D020_SBAS809.gif
fIN = 1850 MHz, AIN = –2 dBFS
Figure 22. Spurious-Free Dynamic Range vs AVDD Supply and Temperature
ADC32RF44 D022_SBAS809.gif
fIN = 3500 MHz, AIN = –3 dBFS with 2-dB digital gain
Figure 24. Spurious-Free Dynamic Range vs AVDD Supply and Temperature
ADC32RF44 D024_SBAS809.gif
fIN = 1850 MHz, AIN = –2 dBFS
Figure 26. Spurious-Free Dynamic Range vs DVDD Supply and Temperature
ADC32RF44 D026_SBAS809.gif
fIN = 3500 MHz, AIN = –3 dBFS with 2-dB digital gain
Figure 28. Spurious-Free Dynamic Range vs DVDD Supply and Temperature
ADC32RF44 D028_SBAS809.gif
fIN = 1850 MHz, AIN = –2 dBFS
Figure 30. Spurious-Free Dynamic Range vs
AVDD19 Supply and Temperature
ADC32RF44 D030_SBAS809.gif
fIN = 3500 MHz, AIN = –3 dBFS with 2-dB digital gain
Figure 32. Spurious-Free Dynamic Range vs
AVDD19 Supply and Temperature
ADC32RF44 D032_SBAS809.gif
fIN = 1.85 GHz, AOUT = –2 dBFS, AVDD19 = 1.9 V,
ADC sampling rate = 2.5 GHz
Figure 34. HD2 Histogram at AVDD19 = 1.9 V
ADC32RF44 D034_SBAS809.gif
fIN = 1.85 GHz
Figure 36. Performance vs Amplitude
ADC32RF44 D036_SBAS809.gif
fIN = 1.85 GHz, AIN = –2 dBFS,
ADC sampling rate = 2.5 GHz
Figure 38. Performance vs Clock Amplitude
ADC32RF44 D038_SBAS809.gif
fIN = 1.85 GHz,
ADC sampling rate = 2.5 GHz
Figure 40. Performance vs Clock Duty Cycle
ADC32RF44 D040_SBAS809.gif
fIN = 1.85 GHz, AIN = –2 dBFS, fPSRR = 7.5 MHz,
APSRR = 50 mVPP, AVDD = 1.9 V, PSRR = 20 dB,
ADC sampling rate = 2.5 GHz
Figure 42. Power-Supply Rejection Ratio FFT for Test Signal on AVDD Supply
ADC32RF44 D042_SBAS809.gif
fIN = 1.85 GHz, AIN = –2 dBFS, fCMRR = 10 MHz,
ACSRR = 50 mVPP, CMRR = 28 dB,
ADC sampling rate = 2.5 GHz
Figure 44. Common-Mode Rejection Ratio FFT
ADC32RF44 D044_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 59.7 dBFS, SFDR (includes IL) = 74 dBc
Figure 46. FFT in 4X Decimation
ADC32RF44 D046_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 61.3 dBFS, SFDR (includes IL) = 72 dBc
Figure 48. FFT in 8X Decimation
ADC32RF44 D048_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 62 dBFS, SFDR (includes IL) = 79 dBc
Figure 50. FFT in 10X Decimation
ADC32RF44 D050_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 63 dBFS, SFDR (includes IL) = 81 dBc
Figure 52. FFT in 16X Decimation
ADC32RF44 D052_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 63.3 dBFS, SFDR (includes IL) = 79 dBc
Figure 54. FFT in 20X Decimation
ADC32RF44 D054_SBAS809.gif
fS = 2500 MSPS, fIN = 1.85 GHz, AIN = –2 dBFS,
SNR = 63.8 dBFS, SFDR (includes IL) = 79 dBc
Figure 56. FFT in 32X Decimation