参数资料
| 型号： | CS4205-KQZ |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 62/81页 |
| 文件大小： | 0K |
| 描述： | IC CODEC AC97 I2S 48-LQFP |
| 标准包装： | 250 |
| 类型： | 音频编解码器 '97 |
| 数据接口： | 串行 |
| 分辨率（位）： | 18，20 b |
| ADC / DAC 数量： | 1 / 2 |
| 三角积分调变： | 是 |
| 动态范围，标准 ADC / DAC (db)： | 90 / 90 |
| 电压 - 电源，模拟： | 4.75 V ~ 5.25 V |
| 电压 - 电源，数字： | 4.75 V ~ 5.25 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-TQFP（9x9） |
| 包装： | 托盘 |
| 产品目录页面： | 754 (CN2011-ZH PDF) |
| 其它名称： | 598-1182 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页当前第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页
CS4205
DS489PP4
65
12.1.3
Microphone Inputs
Figure 28 illustrates an input circuit suitable for dy-
namic and electret microphones. Electret, also
known as phantom-powered, microphones use the
right channel (ring) of the jack for power. The de-
sign also supports the recommended advanced fre-
quency response for voice recognition as specified
in PC 99 and PC 2001. The microphone input of the
CS4205 has an integrated pre-amplifier. Using
combinations of the 10dB bit in the Misc. Crystal
Control Register (Index 60) and the 20dB bit in the
Mic Volume Register (Index 0Eh) the pre-amplifier
gain can be set to 0 dB, 10 dB, 20 dB, or 30 dB.
12.1.4
PC Beep Input
The PC_BEEP input is useful for mixing the output
of the “beeper” (timer chip), provided in most PCs,
with the other audio signals. When the CS4205 is
held in reset, PC_BEEP is passed directly to the
line output. This allows the system sounds or
“beeps” to be available before the AC ’97 interface
has been activated. Figure 29 illustrates a typical
input circuit for the PC_BEEP input. If PC_BEEP
is driven from a CMOS gate, the 4.7 k
resistor
should be tied to analog ground instead of +5VA.
Although this input is described for a low-quality
“beeper”, it is of the same high-quality as all other
analog inputs and may be used for other purposes.
12.1.5
Phone Input
One application of the PHONE input is to interface
to the output of a modem analog front end (AFE)
device so that modem dialing signals and protocol
negotiations may be monitored through the audio
system. Figure 30 shows a design for a modem
connection where the output is fed from the
CS4205 MONO_OUT pin through a divider. The
divider ratio shown does not attenuate the signal,
providing an output voltage of 1 VRMS. If a lower
output voltage is desired, the resistors can be re-
placed with appropriate values, as long as the total
load on the output is kept greater than 10 k
. The
PHONE input is divided by 6 dB to accommodate
a line-level source of 2 VRMS.
12.2
Analog Outputs
The analog output section provides a stereo and a
mono output. The MONO_OUT, LINE_OUT_L,
and LINE_OUT_R pins require 680 pF to 1000 pF
NPO dielectric capacitors between the correspond-
ing pin and analog ground. Each analog output is
DC-biased up to the Vrefout voltage signal refer-
0.1
F
X7R
100
0.1
F
X7R
MIC1/MIC2
10
F
ELEC
AGND
+5VA
2.2 k
1.5 k
AGND
+
Figure 28. Microphone Input
4.7 k
PC_BEEP
+5VA (Low Noise) or
AGND if CMOS Source
PC-BEEP-BUS
47 k
2.7 nF
X7R
0.1
F
X7R
AGND
Figure 29. PC_BEEP Input
PHONE
MONO_OUT
PHONE
MONO_OUT
6.8 k
1.0
F
0
6.8 k
1.0
F
47 k
AGND
1000 pF
Figure 30. Modem Connection
相关PDF资料 |
PDF描述 |
|---|---|
| CS4207-DNZ | IC CODEC AUD HDPN AMP AUTO 48QFN |
| CS4265-CNZ | IC CODEC 24BIT 104DB 32QFN |
| CS4270-DZZ | IC CODEC 24BIT 105DB 24TSSOP |
| CS4271-DZZ | IC CODEC 24BIT 114DB 28-TSSOP |
| CS4272-DZZ | IC CODEC 24BIT 114DB 28-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS4205-KQZR | 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 |
| CS4207 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Low-power, 4-in / 6-out HD Audio CODEC with Headphone Amp |
| CS4207-CNZ | 功能描述:接口—CODEC IC Lo Pwr,4/6 HD Aud Codec w/HP 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 |
| CS4207-CNZ/C1 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Low-power, 4-in / 6-out HD Audio CODEC with Headphone Amp |
| CS4207-CNZR | 功能描述:接口—CODEC IC Lo Pwr,4/6 HD Aud Codec w/HP 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 |
发布紧急采购，3分钟左右您将得到回复。