参数资料
型号: CS42L51-CNZR
厂商: Cirrus Logic Inc
文件页数: 31/43页
文件大小: 0K
描述: IC CODEC LOW-V 24BIT 32-QFP
标准包装: 6,000
类型: 立体声音频
数据接口: PCM 音频接口
分辨率(位): 24 b
ADC / DAC 数量: 2 / 2
三角积分调变:
动态范围,标准 ADC / DAC (db): 98 / 98
电压 - 电源,模拟: 1.8V,2.5V
电压 - 电源,数字: 1.8V,2.5V
工作温度: -10°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 32-QFP
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 管件
配用: 598-1005-ND - BOARD EVAL FOR CS42L51 CODEC
其它名称: Q3956082
DS679F1
37
CS42L51
4.4.7
Line-Level Outputs and Filtering
The CODEC contains on-chip buffer amplifiers capable of producing line level single-ended outputs on
AOUTA and AOUTB. These amplifiers are ground centered and do not have any DC offset. A load stabi-
Connection Diagram (Hardware Mode)” on page 11, is required on the analog outputs. This allows the
DAC amplifiers to drive line or headphone outputs.
Also shown in the Typical Connection diagrams is the recommended passive output filter to support high-
er impedances such as those found on the inputs to operational amplifiers. “Rext”, shown in the typical
connection diagrams, is the input impedance of the receiving device.
The invert and digital gain controls may be used to provide phase and/or amplitude compensation for an
external filter.
The delta-sigma conversion process produces high frequency noise beyond the audio passband, most of
which is removed by the on-chip analog filters. The remaining out-of-band noise can be attenuated using
an off-chip low pass filter.
Software
Controls:
MAX[2:0]
Output
(after Limiter)
Input
RRATE[5:0]
ARATE[5:0]
Volume
Limiter
CUSH[2:0]
ATTACK/RELEASE SOUND
CUSHION
MAX[2:0]
AOUTx_VOL[7:0] volume
control should NOT be
adjusted manually when
Limiter is enabled.
Figure 16. Peak Detect & Limiter
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