ZHCSAC2C
August 2012 – October 2018
PCM5121
,
PCM5122
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化系统图
4
修订历史记录
5
Device Comparison
6
Pin Configuration and Functions
6.0.1
RHB Package I2C Mode (MODE1 tied to DGND and MODE2 tied to DVDD) Top View
6.0.2
RHB Package SPI Mode (MODE1 tied to DVDD) Top View
6.0.3
RHB Package Hardwired Mode (MODE1 tied to DGND, MODE2 tied to DGND) Top View
Pin 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: SCK Input
7.7
Timing Requirements: XSMT
7.8
Switching Characteristics
7.9
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Terminology
8.3.2
Audio Data Interface
8.3.2.1
Audio Serial Interface
8.3.2.2
PCM Audio Data Formats
8.3.2.3
Zero Data Detect
8.3.3
XSMT Pin (Soft Mute / Soft Un-Mute)
8.3.4
Audio Processing
8.3.4.1
PCM512x Audio Processing
8.3.4.1.1
Overview
8.3.4.1.2
Software
8.3.4.2
Interpolation Filter
8.3.4.3
Fixed Audio Processing Flow (Program 5)
8.3.4.3.1
Filter Programming Changes
8.3.4.3.2
Processing Blocks – Detailed Descriptions
8.3.4.3.3
Biquad Section
8.3.4.3.4
Dynamic Range Compression
8.3.4.3.5
Stereo Mixer
8.3.4.3.6
Stereo Multiplexer
8.3.4.3.7
Mono Mixer
8.3.4.3.8
Master Volume Control
8.3.4.3.9
Miscellaneous Coefficients
8.3.5
DAC Outputs
8.3.5.1
Analog Outputs
8.3.5.2
Recommended Output Filter for the PCM512x
8.3.5.3
Choosing Between VREF and VCOM Modes
8.3.5.3.1
Voltage Reference and Output Levels
8.3.5.3.2
Mode Switching Sequence, from VREF Mode to VCOM Mode
8.3.5.4
Digital Volume Control
8.3.5.4.1
Emergency Ramp-Down
8.3.5.5
Analog Gain Control
8.3.6
Reset and System Clock Functions
8.3.6.1
Clocking Overview
8.3.6.2
Clock Slave Mode With Master and System Clock (SCK) Input (4 Wire I2S)
8.3.6.3
Clock Slave Mode With BCK PLL to Generate Internal Clocks (3-Wire PCM)
8.3.6.4
Clock Generation Using the PLL
8.3.6.5
PLL Calculation
8.3.6.5.1
Examples:
8.3.6.5.1.1
Recommended PLL Settings
8.3.6.6
Clock Master Mode from Audio Rate Master Clock
8.3.6.7
Clock Master from a Non-Audio Rate Master Clock
8.4
Device Functional Modes
8.4.1
Choosing a Control Mode
8.4.1.1
Software Control
8.4.1.1.1
SPI Interface
8.4.1.1.1.1
Register Read and Write Operation
8.4.1.1.2
I2C Interface
8.4.1.1.2.1
Slave Address
8.4.1.1.2.2
Register Address Auto-Increment Mode
8.4.1.1.2.3
Packet Protocol
8.4.1.1.2.4
Write Register
8.4.1.1.2.5
Read Register
8.4.1.1.2.6
Timing Characteristics
8.4.2
VREF and VCOM Modes
8.5
Programming
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power Supply Recommendations
10.1
Power Supply Distribution and Requirements
10.2
Recommended Powerdown Sequence
10.2.1
XSMT = 0
10.2.2
Clock Error Detect
10.2.3
Planned Shutdown
10.2.4
Unplanned Shutdown
10.3
External Power Sense Undervoltage Protection Mode
10.4
Power-On Reset Function
10.4.1
Power-On Reset, DVDD 3.3-V Supply
10.4.2
Power-On Reset, DVDD 1.8-V Supply
10.5
PCM512x Power Modes
10.5.1
Setting Digital Power Supplies and I/O Voltage Rails
10.5.2
Power Save Modes
10.5.3
Power Save Parameter Programming
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Register Maps
12.1
PCM512x Register Map
12.1.1
Detailed Register Descriptions
12.1.1.1
Register Map Summary
12.1.1.2
Page 0 Registers
12.1.1.3
Page 1 Registers
12.1.1.4
Page 44 Registers
12.1.1.5
Page 253 Registers
12.1.2
PLL Tables for Software Controlled Devices
12.1.3
Coefficient Data Formats
12.1.4
Power Down and Reset Behavior
13
器件和文档支持
13.1
开发支持
13.2
文档支持
13.3
相关链接
13.4
接收文档更新通知
13.5
社区资源
13.6
商标
13.7
静电放电警告
13.8
术语表
14
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
PW|28
MPDS364
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsac2c_oa
zhcsac2c_pm
1
特性
可通过寄存器选择的自动处理功能最高可达 48kHz f
S
动态范围控制 (DRC)
均衡 (EQ)
过滤
数模转换器 (DAC) 功能(f
S
达 384kHz)
市场领先的低带外噪声
可选数字滤波器延迟与性能
无需隔直电容
集成负电荷泵
智能静音系统;软斜升或斜降搭配模拟静音,实现 120dB 静音信噪比 (SNR)
具有 BCK 基准的集成高性能音频锁相环 (PLL),可在内部生成 SCK
接受 16 位、20 位、24 位和 32 位音频数据
脉冲编码调制 (PCM) 数据格式:I
2
S、左对齐
、右对齐、时分复用 (TDM)/数字信号处理 (DSP)
通用串行接口 (SPI) 或者 I
2
C 控制
软件或者
硬件配置
禁用 LRCK 和 BCK 时进入自动节能模式
1.8V 或 3.3V 故障安全低电压互补金属氧化物半导体 (LVCMOS) 数字输入
单电源运算:
3.3V 模拟,1.8V 或 3.3V 数字
集成上电复位
28 引脚小型封装
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