ZHCSMY2
December 2020
PCM6480-Q1
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements: I2C Interface
7.7
Switching Characteristics: I2C Interface
7.8
Timing Requirements: SPI Interface
7.9
Switching Characteristics: SPI Interface
7.10
Timing Requirements: TDM, I2S or LJ Interface
7.11
Switching Characteristics: TDM, I2S or LJ Interface
7.12
Timing Requirements: PDM Digital Microphone Interface
7.13
Switching Characteristics: PDM Digial Microphone Interface
7.14
Timing Diagrams
7.15
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Serial Interfaces
8.3.1.1
Control Serial Interfaces
8.3.1.2
Audio Serial Interfaces
8.3.1.2.1
Time Division Multiplexed Audio (TDM) Interface
8.3.1.2.2
Inter IC Sound (I2S) Interface
8.3.1.2.3
Left-Justified (LJ) Interface
8.3.1.3
Using Multiple Devices With Shared Buses
8.3.2
Phase-Locked Loop (PLL) and Clock Generation
8.3.3
Analog Input Channel Configuration
8.3.4
Reference Voltage
8.3.5
Microphone Bias
8.3.6
Input DC Fault Diagnostics
8.3.6.1
Fault Conditions
8.3.6.1.1
Input Pin Short to Ground
8.3.6.1.2
Input Pin Short to MICBIAS
8.3.6.1.3
Open Inputs
8.3.6.1.4
Short Between INxP and INxM
8.3.6.1.5
Input Pin Overvoltage
8.3.6.1.6
Input Pin Short to VBAT_IN
8.3.6.2
Fault Reporting
8.3.6.2.1
Overcurrent and Overtemperature Protection
8.3.7
Digital PDM Microphone Record Channel
8.3.8
Signal-Chain Processing
8.3.8.1
Programmable Channel Gain and Digital Volume Control
8.3.8.2
Programmable Channel Gain Calibration
8.3.8.3
Programmable Channel Phase Calibration
8.3.8.4
Programmable Digital High-Pass Filter
8.3.8.5
Programmable Digital Biquad Filters
8.3.8.6
Programmable Channel Summer and Digital Mixer
8.3.8.7
Configurable Digital Decimation Filters
8.3.8.7.1
Linear Phase Filters
8.3.8.7.1.1
Sampling Rate: 8 kHz or 7.35 kHz
8.3.8.7.1.2
Sampling Rate: 16 kHz or 14.7 kHz
8.3.8.7.1.3
Sampling Rate: 24 kHz or 22.05 kHz
8.3.8.7.1.4
Sampling Rate: 32 kHz or 29.4 kHz
8.3.8.7.1.5
Sampling Rate: 48 kHz or 44.1 kHz
8.3.8.7.1.6
Sampling Rate: 96 kHz or 88.2 kHz
8.3.8.7.1.7
Sampling Rate: 192 kHz or 176.4 kHz
8.3.8.7.1.8
Sampling Rate: 384 kHz or 352.8 kHz
8.3.8.7.1.9
Sampling Rate: 768 kHz or 705.6 kHz
8.3.8.7.2
Low-Latency Filters
8.3.8.7.2.1
Sampling Rate: 16 kHz or 14.7 kHz
8.3.8.7.2.2
Sampling Rate: 24 kHz or 22.05 kHz
8.3.8.7.2.3
Sampling Rate: 32 kHz or 29.4 kHz
8.3.8.7.2.4
Sampling Rate: 48 kHz or 44.1 kHz
8.3.8.7.2.5
Sampling Rate: 96 kHz or 88.2 kHz
8.3.8.7.2.6
Sampling Rate: 192 kHz or 176.4 kHz
8.3.8.7.3
Ultra-Low-Latency Filters
8.3.8.7.3.1
Sampling Rate: 16 kHz or 14.7 kHz
8.3.8.7.3.2
Sampling Rate: 24 kHz or 22.05 kHz
8.3.8.7.3.3
Sampling Rate: 32 kHz or 29.4 kHz
8.3.8.7.3.4
Sampling Rate: 48 kHz or 44.1 kHz
8.3.8.7.3.5
Sampling Rate: 96 kHz or 88.2 kHz
8.3.8.7.3.6
Sampling Rate: 192 kHz or 176.4 kHz
8.3.8.7.3.7
Sampling Rate: 384 kHz or 352.8 kHz
8.3.9
Automatic Gain Controller (AGC)
8.3.10
Interrupts, Status, and Digital I/O Pin Multiplexing
8.4
Device Functional Modes
8.4.1
Hardware Shutdown
8.4.2
Sleep Mode or Software Shutdown
8.4.3
Active Mode
8.4.4
Software Reset
8.5
Programming
8.5.1
Control Serial Interfaces
8.5.1.1
I2C Control Interface
8.5.1.1.1
General I2C Operation
8.5.1.1.2
I2C Single-Byte and Multiple-Byte Transfers
8.5.1.1.2.1
I2C Single-Byte Write
8.5.1.1.2.2
I2C Multiple-Byte Write
8.5.1.1.2.3
I2C Single-Byte Read
8.5.1.1.2.4
I2C Multiple-Byte Read
8.5.1.2
SPI Control Interface
8.6
Register Maps
8.6.1
Device Configuration Registers
8.6.1.1
Registers Access Type
8.6.1.2
Page 0 Registers
8.6.1.3
Page 1 Registers
8.6.2
Programmable Coefficient Registers
8.6.2.1
Programmable Coefficient Registers: Page 2
8.6.2.2
Programmable Coefficient Registers: Page 3
8.6.2.3
Programmable Coefficient Registers: Page 4
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Four-Channel Analog Microphone and Four-Channel PDM Microphone Simultaneous Recording Using the PCM6480-Q1
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Example Device Register Configuration Script for EVM Setup
9.2.1.3
Application Curves
9.3
What To Do and What Not To Do
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.2
Documentation Support
12.2.1
Related Documentation
12.3
接收文档更新通知
12.4
支持资源
12.5
Trademarks
12.6
静电放电警告
12.7
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RTV|32
MPQF166B
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsmy2_oa
zhcsmy2_pm
1
特性
符合面向汽车应用的 AEC-Q100 标准
温度等级 1:-40°C ≤ T
A
≤ +125°C
最多 8 通道音频同步转换
4 通道模拟麦克风输入或线路输入
4 通道数字 PDM 麦克风输入
ADC 性能:
线路差分输入动态范围:110dB
麦克风差分输入动态范围:110dB
THD+N:-95dB
ADC 模拟输入电压:
差分 10V
RMS
满量程输入
单端 5V
RMS
满量程输入
ADC 采样率 (f
S
) = 8kHz 至 768kHz
可编程通道设置:
模拟输入通道增益:0dB 至 42dB
数字音量控制:–100dB 至 27dB
增益校准分辨率为 0.1dB
相位校准分辨率为 163ns
可编程麦克风偏置(5V 至 9V)
可编程麦克风模拟输入故障诊断:
开路输入或短路输入
接地短路、MICBIAS 或 VBAT
麦克风偏置过流保护
低延迟信号处理滤波器选择
可编程 HPF 和双二阶数字滤波器
I
2
C 或 SPI 控制
音频串行数据接口:
格式:TDM、I
2
S 或左平衡 (LJ)
字长:16 位、20 位、24 位或 32 位
主/从接口
3.3V 单电源运行
I/O 电源运行:3.3V 或 1.8V
功耗:
在 48kHz 下 < 20mW/通道