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CS8416-CZZ

192kHz digital audio receiver, 8:2 S/PDIF MUX, AES3/IEC60958, SPI/I2C, low-jitter PLL, TSSOP-28

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Manufacturer Part：

CS8416-CZZ

Package：

28-TSSOP (9.7 x 4.4 x 1.2mm)

Description

Product Overview

The CS8416-CZZ is a 192kHz digital audio interface receiver from Cirrus Logic that receives and decodes one of eight stereo pairs of digital audio data according to IEC60958, S/PDIF, EIAJ CP1201, or AES3 standards. With an 8:2 S/PDIF input multiplexer, low-jitter clock recovery, and SPI/I2C control port, it is designed for professional and consumer digital audio systems. The device operates from 3.3V/5V supplies in a 28-pin TSSOP package.

Key Specifications

Sample Rate Range	32kHz to 192kHz
Input Channels	8:2 S/PDIF multiplexer
Interface Standards	IEC60958, S/PDIF, AES3, EIAJ CP1201
Control Interface	SPI (up to 6MHz) or I2C (100kHz)
Supply Voltage	VA = 3.3V, VD = 3.3V, VL = 3.3V or 5V
Supply Current (48kHz)	VA: 5.7mA, VD: 5.9mA, VL@3.3V: 2.8mA
Supply Current (192kHz)	VA: 9.4mA, VD: 23mA, VL@3.3V: 7.8mA
Power-Down Current	VA: 10µA, VD: 70µA, VL: 10-12µA
Differential Input Sensitivity	150-200 mVpp
GPO Outputs	3 (configurable signal routing)
Package	28-TSSOP (9.7 x 4.4mm)
Operating Temperature	-10°C to +70°C (commercial)
Lifecycle Status	Obsolete

Features

Complete IEC60958/S/PDIF/AES3 compatible receiver
8:2 S/PDIF input multiplexer for multi-source selection
Low-jitter clock recovery from input data stream
Flexible 3-wire serial digital audio output port
SPI or I2C control port for software configuration
Standalone hardware mode for controller-less operation
On-chip channel status and user data buffer memories
Auto-detection of compressed audio input streams
CD Q sub-code decoding
3 configurable general-purpose outputs (GPO)
Differential cable receiver for long cable runs

Applications

AV receivers and home theater systems
Professional digital mixing consoles
CD recorders and DVD players
Effects processors and audio converters
Set-top boxes and multimedia speakers
Automotive audio systems

Product Introduction:CS8416-CZZ Product Introduction

The CS8416-CZZ is a monolithic CMOS digital audio interface receiver from Cirrus Logic that receives and decodes one of eight stereo pairs of digital audio data according to IEC60958, S/PDIF, EIAJ CP1201, or AES3 interface standards. It features an 8:2 S/PDIF input multiplexer, low-jitter clock recovery, and a flexible serial digital audio output port. Channel status and user data are stored in on-chip buffer memories accessible via the SPI or I2C control port. Three general-purpose output pins allow signal routing in hardware mode. The device supports standalone operation without a microcontroller. Note: This part is listed as Obsolete; the CS8416-CZZR (tape and reel) or GC8416 (SX compatible) may serve as alternatives.

Working Principle:CS8416-CZZ Working Principle

The CS8416 receives bi-phase-mark encoded digital audio from any of 8 S/PDIF/AES3 inputs selected by the internal multiplexer. A phase-locked loop (PLL) recovers the clock from the incoming biphase signal, providing a low-jitter recovered master clock (RMCK) synchronized to the input sample rate. The AES3/S/PDIF decoder extracts the audio data, validity bit, user data, channel status, and parity from the biphase stream. Audio data is output on a flexible 3-wire serial port (OLRCK, OSCLK, SDOUT) in multiple formats (I2S, left-justified, right-justified, DSP mode). Channel status and user data are stored in on-chip buffers that can be read via SPI or I2C. In hardware mode, configuration pins replace the control port. The OMCK input allows the device to lock to a local system clock instead of the recovered clock, useful when the S/PDIF source may be intermittent.

Pin Description:CS8416-CZZ Pin Definition and Functions

Pin	Name	Description
1-3	RXP3-RXP1	S/PDIF positive inputs 3-1
4	RXP0	S/PDIF positive input 0
5	RXN	S/PDIF negative (differential) input
6	VA	Analog supply (3.3V)
7	AGND	Analog ground
8	FILT	PLL filter pin (external RC network)
9	RMCK	Recovered master clock output
10	OMCK	External system clock input
11-18	RXP7-RXP4,AD0-AD2,GPO2	Muxed input/config pins
19	GND	Digital ground
20	VL	Digital interface supply (3.3V or 5V)
21	VD	Digital supply (3.3V)
22-24	GPO0,GPO1,SDOUT	General purpose / serial data out
25-28	OSCLK,OLRCK,RST,CS/SCL	Serial clock, LRCK, reset, control

Application Scenarios:In which products and applications isCS8416-CZZ used

Multi-Input AV Receiver: Use the 8:2 S/PDIF multiplexer to select among multiple digital audio sources (Blu-ray, CD, TV, game console). The low-jitter PLL recovers a clean clock for the DAC. The SPI/I2C control port allows the system MCU to change input selection and read channel status for format detection.
Professional Audio Converter: Interface AES3 professional audio signals to a DSP or DAC. The differential input receiver handles long cable runs in studio environments. Channel status data decoding provides professional metadata (emphasis, sample rate, source identification). The RMCK output clocks the entire signal chain coherently.
Standalone Digital Input Module: Operate the CS8416 in hardware mode without a microcontroller. Pin configurations select the S/PDIF input, audio output format, and de-emphasis settings. GPO pins can drive format indicator LEDs or route the selected input to a transmitter for pass-through.

Alternative Models:What chips are recommended as replacements for CS8416-CZZ

Model	Sample Rate	Inputs	Status	Key Difference
CS8416-CZZR	192kHz	8	Obsolete	Tape and reel package
GC8416	192kHz	8	Active	SX (芯麦) compatible replacement
DIR9001	96kHz	1	Active	TI, single input, lower cost
AK4118A	192kHz	8	Active	AKM, 8-input, comparable feature set