参数资料
型号: CS4205
厂商: Cirrus Logic, Inc.
元件分类: Codec
英文描述: CrystalClear Audio Codec 97 with Portable Computing
中文描述: CrystalClear音频编解码器与便携式电脑97
文件页数: 13/80页
文件大小: 1379K
代理商: CS4205
CS4205
DS489PP2
13
2. GENERAL DESCRIPTION
The CS4205 is a mixed-signal serial audio codec
compliant with the Intel
Audio Codec ’97 Specifi-
cation
, revision 2.1
[6] (referred to as AC
97). It is
designed to be paired with a digital controller, typ-
ically located on the PCI bus or integrated within
the system core logic chip set. The controller is re-
sponsible for all communications between the
CS4205 and the remainder of the system. The
CS4205 contains two distinct functional sections:
digital and analog. The digital section includes the
AC-link interface, S/PDIF interface, serial data
port, GPIO, signal processing engine, ZV Port,
power management support, and Sample Rate Con-
verters (SRCs). The analog section includes the an-
alog input multiplexer (mux), stereo input mixer,
stereo output mixer, mono output mixer, stereo An-
alog-to-Digital Converters (ADCs), stereo Digi-
tal-to-Analog Converters (DACs), dedicated mono
microphone ADC, and their associated volume
controls.
2.1
AC-Link
All communication with the CS4205 is established
with a 5-wire digital interface to the controller
called the AC-link. This interface is shown in
Figure 7. All clocking for the serial communication
is synchronous to the BIT_CLK signal. BIT_CLK
is generated by the primary audio codec and is used
to clock the controller and any secondary audio co-
decs. Both input and output AC-link audio frames
are organized as a sequence of 256 serial bits form-
ing 13 groups referred to as
slots
. During each au-
dio frame, data is passed bi-directionally between
the CS4205 and the controller. The input frame is
driven from the CS4205 on the SDATA_IN line.
The output frame is driven from the controller on
the SDATA_OUT line. The controller is also re-
sponsible for issuing reset commands via the RE-
SET# signal. Following a Cold Reset, the CS4205
is responsible for notifying the controller that it is
ready for operation after synchronizing its internal
functions. The CS4205 AC-link signals must use
the same digital supply voltage as the controller, ei-
ther +5 V or +3.3 V. See Section 4,
AC-Link Frame
Definition
, for detailed AC-link information.
CODEC
SYNC
BIT_CLK
SDATA_OUT
SDATA_IN
RESET#
Digital AC
97
Controller
AC
97
Figure 7. AC-link Connections
相关PDF资料
PDF描述
CS4205-KQ CrystalClear Audio Codec 97 with Portable Computing
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相关代理商/技术参数
参数描述
CS4205_05 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:CrystalClear? Audio Codec ’97 for Portable Computing
CS4205BF 制造商:Cypress Semiconductor 功能描述:
CS4205-KQ 功能描述:接口—CODEC IC AC’97 Codec for Docking Stations RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel
CS4205-KQR 功能描述:接口—CODEC IC AC’97 Codec for Docking Stations RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel
CS4205-KQZ 功能描述:接口—CODEC IC AC’97 Codec for Docking Stations RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel