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参数资料
型号： CS4202-JQ
厂商： CIRRUS LOGIC INC
元件分类： 消费家电
英文描述： Audio Codec 97 with headphone Amplifier
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封装： 9 X 9 MM, 1.40 MM HEIGHT, TQFP-48
文件页数： 13/68页
文件大小： 1248K
代理商： CS4202-JQ
CS4202
DS549PP1
13
2.2
The CS4202 contains a set of AC ’97 compliant
control registers, and a set of Cirrus Logic defined
control registers. These registers control the basic
functions and features of the CS4202. Read access-
es of the control registers by the AC ’97 controller
are accomplished with the requested register index
in Slot 1 of a SDATA_OUT frame. The following
SDATA_INframewill contain thereaddatain Slot
2. Write operations are similar, with the register in-
dex in Slot 1 and the write data in Slot 2 of a
SDATA_OUT frame. The function of each input
and output frame is detailed in Section 3,
AC-Link
Frame Definition
. Individual register descriptions
are found in Section 4,
Register Interface
.
Control Registers
2.3
The sample rate converters (SRC) provide high ac-
curacy digital filters supporting samplefrequencies
other than 48 kHz to be captured from the CS4202
or played from the controller. AC ’97 requires sup-
port for two audio rates (44.1 and 48 kHz). In addi-
tion, the Intel
I/O Controller Hub (ICHx)
specification [9] requires support for five more au-
dio rates (8, 11.025, 16, 22.05, and 32 kHz). The
CS4202 supports all these rates, as shown in
Table 10 on page 32.
Sample Rate Converters
2.4
The CS4202 input and output mixers are illustrated
in Figure 8. The stereo input mixer sums together
Mixers
the analog inputs to the CS4202 according to the
settings in the volume control registers. The stereo
output mixer sums the output of the stereo input
mixer with thePC_BEEP and PHONE signals. The
stereo output mix is then sent to the LINE_OUT
and HP_OUT pins of the CS4202. The mono out-
put mixer generates a monophonic sum of the left
and right audio channels from the stereo input mix-
er. The mono output mix is then sent to the
MONO_OUT pin on the CS4202.
2.5
Input Mux
The input multiplexer controls which analog input
is sent to the ADCs. The output of the input mux is
converted to stereo 18-bit digital PCM data and
transmitted to the controller by means of the
AC-link SDATA_IN signal.
2.6
Volume Control
The CS4202 volume registers control analog input
levels to the input mixer and analog output levels,
including the master volume level. The PC_BEEP
volumecontroluses3 dBstepswitharangeof0 dB
to-45 dBattenuation.Allother analogvolumecon-
trols use 1.5 dB steps. The analog inputs have a
mixing rangeof+12 dBsignalgain to-34.5 dBsig-
nal attenuation. The analog output volume controls
have a range of 0 dB to -46.5 dB attenuation for
LINE_OUT, HP_OUT and MONO_OUT.
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相关代理商/技术参数
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CS4202-JQZ 功能描述:接口—CODEC IC AC’97 w/Headphone Amp 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
CS4202-JQZ 制造商:Cirrus Logic 功能描述:Audio CODEC IC
CS4202-JQZ 制造商:Cirrus Logic 功能描述:IC AUDIO CODEC 2CH AC97 W/HA
CS4202-JQZR 功能描述:接口—CODEC IC AC’97 w/Headphone Amplifier 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
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