產品詳細資料

Resolution (Bits) 14 Number of DAC channels 1 Interface type JESD204B Sample/update rate (Msps) 9000 Features Ultra High Speed Rating Catalog Interpolation 10x, 12x, 16x, 18x, 20x, 24x, 6x, 8x Power consumption (typ) (mW) 2195 SFDR (dB) 94 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Ext, Int
Resolution (Bits) 14 Number of DAC channels 1 Interface type JESD204B Sample/update rate (Msps) 9000 Features Ultra High Speed Rating Catalog Interpolation 10x, 12x, 16x, 18x, 20x, 24x, 6x, 8x Power consumption (typ) (mW) 2195 SFDR (dB) 94 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Ext, Int
FCCSP (AAV) 144 100 mm² 10 x 10
  • 14-bit resolution
  • Maximum DAC sample rate: 9 GSPS
  • Key Specifications:
    • RF full-scale output power at 2.1 GHz:
      • DAC38RF80/90/84: 0 dBm
      • DAC38RF83/93/85: 3 dBm (with 2:1 balun)
    • Spectral performance(on-chip PLL, DIFF):
      • fDAC = 5898.24 MSPS, fOUT = 2.14 GHz
        • WCDMA ACLR: 75 dBc
        • WCDMA alt-ACLR: 77 dBc
      • fDAC = 8847.36 MSPS, fOUT = 3.7 GHz
        • 20 MHz LTE ACLR: 63 dBc
      • fDAC = 9 GSPS, fOUT = 1.8 GHz
        • IMD3 = 70 dBc (–6 dBFS, 10-MHz tone spacing)
        • NSD = –157 dBc/Hz
  • Dual-band digital up-converter per DAC
    • 6, 8, 10, 12, 16, 18, 20 or 24x interpolation
    • 4 Independent NCOs with 48-bit resolution
  • JESD204B Interface, subclass 1
    • Support for multichip synchronization
    • Maximum lane rate: 12.5 Gbps
  • Single-ended output with integrated balun (DAC38RF80/90/84) covering 700 MHz to 3800 MHz
  • Internal PLL and VCO with bypass
    • fC(VCO) = 5.9 or 8.9 GHz
  • Power dissipation: 1.4 to 2.2 W/ch
  • Power supplies: –1.8 V, 1 V, 1.8 V
  • Package: 10 x 10 mm BGA, 0.8 mm pitch, 144-balls
  • 14-bit resolution
  • Maximum DAC sample rate: 9 GSPS
  • Key Specifications:
    • RF full-scale output power at 2.1 GHz:
      • DAC38RF80/90/84: 0 dBm
      • DAC38RF83/93/85: 3 dBm (with 2:1 balun)
    • Spectral performance(on-chip PLL, DIFF):
      • fDAC = 5898.24 MSPS, fOUT = 2.14 GHz
        • WCDMA ACLR: 75 dBc
        • WCDMA alt-ACLR: 77 dBc
      • fDAC = 8847.36 MSPS, fOUT = 3.7 GHz
        • 20 MHz LTE ACLR: 63 dBc
      • fDAC = 9 GSPS, fOUT = 1.8 GHz
        • IMD3 = 70 dBc (–6 dBFS, 10-MHz tone spacing)
        • NSD = –157 dBc/Hz
  • Dual-band digital up-converter per DAC
    • 6, 8, 10, 12, 16, 18, 20 or 24x interpolation
    • 4 Independent NCOs with 48-bit resolution
  • JESD204B Interface, subclass 1
    • Support for multichip synchronization
    • Maximum lane rate: 12.5 Gbps
  • Single-ended output with integrated balun (DAC38RF80/90/84) covering 700 MHz to 3800 MHz
  • Internal PLL and VCO with bypass
    • fC(VCO) = 5.9 or 8.9 GHz
  • Power dissipation: 1.4 to 2.2 W/ch
  • Power supplies: –1.8 V, 1 V, 1.8 V
  • Package: 10 x 10 mm BGA, 0.8 mm pitch, 144-balls

The DAC38RFxx is a family of high-performance, dual/single-channel, 14-bit, 9-GSPS, RF-sampling digital-to-analog converters (DACs) that are capable of synthesizing wideband signals from 0 to 4.5 GHz. A high dynamic range allows the DAC38RFxx family to generate signals for a wide range of applications including 3G/4G signals for wireless base-stations and radar.

The devices feature a low-power JESD204B Interface with up to 8 lanes with a maximum bit rate of 12.5 Gbps allowing an input data rate of 1.25 GSPS complex per channel. The DAC38RFxx provides two digital up-converters per channel, with multiple options for interpolation rates. A digital quadrature modulator with independent, frequency flexible NCOs are available to support multi-band operation. An optional low-jitter PLL/VCO simplifies the DAC sampling clock generation by allowing use of a lower frequency reference clock.

The DAC38RFxx is a family of high-performance, dual/single-channel, 14-bit, 9-GSPS, RF-sampling digital-to-analog converters (DACs) that are capable of synthesizing wideband signals from 0 to 4.5 GHz. A high dynamic range allows the DAC38RFxx family to generate signals for a wide range of applications including 3G/4G signals for wireless base-stations and radar.

The devices feature a low-power JESD204B Interface with up to 8 lanes with a maximum bit rate of 12.5 Gbps allowing an input data rate of 1.25 GSPS complex per channel. The DAC38RFxx provides two digital up-converters per channel, with multiple options for interpolation rates. A digital quadrature modulator with independent, frequency flexible NCOs are available to support multi-band operation. An optional low-jitter PLL/VCO simplifies the DAC sampling clock generation by allowing use of a lower frequency reference clock.

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重要文件 類型 標題 格式選項 日期
* Data sheet DAC38RFxx Dual- or Single-Channel, Single-Ended or Differential Output, 14-Bit, 9-GSPS, RF-Sampling DAC With JESD204B Interface and On-Chip PLL datasheet (Rev. D) PDF | HTML 2023年 12月 28日
Application note Impact of Power-Supply Noise on Phase Noise Performance of RF DACs 2018年 6月 13日
Application note Eye Scan Testing with the DAC38RFxx 2017年 8月 10日
Application note Quick-Start Methods in Simulating the DAC38RF8x Input/Output Buffer Information 2017年 8月 2日
Application note DAC38RF8x Test Modes 2017年 7月 25日
Design guide Efficient Power Supply Scheme for RF-Sampling DAC Reference Design 2016年 8月 22日

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開發板

DAC38RF80EVM — DAC38RF80 雙通道、14 位元、9GSPS、6x-24x 內插、6 和 9GHz PLL DAC 評估模組

DAC38RF80EVM 是用於評估 DAC38RF80/84/90 數位類比轉換器 (DAC) 的電路板。EVM 可用於評估高達 9GSPS 取樣率的 DAC 性能。此設計可搭配基於 FPGA 的圖型產生器卡 TSW14J56EVM(Rev B 及以上版本)協同運作。EVM 中提供的 FMC 連接器亦可將 DAC 與第三方廠商的 FPGA 開發板進行介接。同時提供易於使用的軟體介面,可透過 SPI 控制 DAC 與板載的 LMK04828 時鐘晶片。

使用指南: PDF
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韌體

SLAC771 Arria10 + DAC38RF82 Design Firmware

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韌體

SLAC779 DAC38RF8x KCU105 Firmware

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韌體

TI204C-IP Request for JESD204 rapid design IP

The JESD204 rapid design IP has been designed to enable FPGA engineers to achieve an accelerated path to a working JESD204 system. The IP has been architected in a way that downstream digital processing and other application logic are isolated from most of the performance- and timing-critical (...)

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開發模組 (EVM) 的 GUI

DATACONVERTERPRO-SW High Speed Data Converter Pro GUI Installer, v5.31

This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)

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模擬型號

DAC38RF80 IBIS Model

SLAM304.ZIP (70 KB) - IBIS Model
模擬型號

DAC38RF8x IBIS-AMI Model (Rev. A)

SLAM343A.ZIP (24658 KB) - IBIS-AMI Model
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一,涵蓋我們的類比和電源產品組合,以及特定類比行為模型,且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前,建立完整的終端設備設計和解決方案原型,進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
參考設計

TIDA-01215 — 適用於最佳化射頻取樣 DAC 中的突波和相位雜訊的電源參考設計

此參考設計提供高效率的電源供應方案,可在不犧牲性能並縮小電路板面積和 BOM 的情況下,將射頻取樣 DAC38RF8x 數位轉類比資料轉換器 (DAC) 開機。此參考設計使用 DC/DC 交換器和 LDO 將 DAC38RF8x 開機,同時達到高類比性能(雜散與相位雜訊),並最大限度避免在電源效率方面做出取捨。此處概述的設計方法可延伸至其他射頻取樣資料轉換器的電源供應設計。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
FCCSP (AAV) 144 Ultra Librarian

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