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参数资料
| 型号： | CS4221-KS |
| 厂商： | CRYSTAL SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | 24-Bit Stereo Audio Codec with 3V Interface |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封装： | SSOP-28 |
| 文件页数： | 15/32页 |
| 文件大小： | 770K |
| 代理商： | CS4221-KS |
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CS4220 CS4221
DS284PP3
15
5.2.4
SOFT RAMP STEP RATE (RMP)
Default = 00
00 - 1 step per 8 LRCK’s
01 - 1 step per 4 LRCK’s
10 - 1 step per 16 LRCK’s
11 - 1 step per 32 LRCK’s
Function:
The rate of change for the Soft Ramp function is adjustable through the RMP bits.
5.3
Left Channel Output Attenuator Level (address 03h)
5.4
Right Channel Output Attenuator Level (address 04h)
5.4.1
ATTENUATION LEVEL (ATT7-ATT0)
Default = 00h
Function:
The Output Attenuator Level registers allow for attenuation of the DAC outputs in 0.5 dB increments
from 0 to 113.5 dB. Level changes are implemented with an analog volume control until the residual
output noise is equal to the noise floor in the mute state. At this point, volume changes are performed
digitally. This technique is superior to purely digital volume control because the noise is attenuated
by the same amount as the signal, thus preserving dynamic range, see Figure 16. Volume changes
are performed as dictated by the SOFT bit in the DAC Control register. ATT0 represents 0.5 dB of
attenuation and settings greater than 227 (decimal value) will mute the selected DAC output.
7
6
5
4
3
2
1
0
ATT7
0
ATT6
0
ATT5
0
ATT4
0
ATT3
0
ATT2
0
ATT1
0
ATT0
0
Binary Code
00000000
11100011
11100100
Decimal Value
0
227
228
Volume Setting
0 dB
-113.5 dB
Muted
Table 1. Example Volume Settings
相关PDF资料 |
PDF描述 |
|---|---|
| CS4222-KS | 20-Bit Stereo Audio Codec with Volume Control |
| CS4222 | 20-Bit Stereo Audio Codec with Volume Control |
| CS4224 | 24-Bit 105 dB Audio Codec with Volume Control |
| CS4223-BS | 24-Bit 105 dB Audio Codec with Volume Control |
| CS4223 | 24-Bit 105 dB Audio Codec with Volume Control |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS4221-KSR | 功能描述:接口—CODEC IC 24Bit Str Audio CODEC 3V Intrfc 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 |
| CS4222 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:20-Bit Stereo Audio Codec with Volume Control |
| CS4222_02 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:20-Bit Stereo Audio Codec with Volume Control |
| CS4222-BS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CS4222-DS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Cirrus Logic 功能描述: |
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