参数资料
型号: CDB4245
厂商: Cirrus Logic Inc
文件页数: 48/59页
文件大小: 0K
描述: BOARD EVAL FOR CS4245 CODEC
标准包装: 1
主要目的: 音频编解码器
嵌入式: 是,FPGA / CPLD
已用 IC / 零件: CS4245
主要属性: 4 个单端模拟和 1 个麦克风输入和 8 个输出,S/PDIF 发射器和接收器
次要属性: 图形用户界面
已供物品:
产品目录页面: 754 (CN2011-ZH PDF)
相关产品: CS4245-DQZR-ND - IC CODEC AUD STER 104DB 48-LQFP
598-1616-ND - IC CODEC AUD STER 104DB 48LQFP
598-1034-ND - IC CODEC AUD STER 104DB 48LQFP
其它名称: 598-1501
CS4245
occur after a time-out period between 512 and 1024 sample periods (10.7 ms to 21.3 ms at 48 kHz sam-
ple rate) if the signal does not encounter a zero crossing. The zero cross function is independently mon-
itored and implemented for each channel. See Table 16 .
PGASoft
0
0
1
1
PGAZeroCross
0
1
0
1
Mode
Changes to affect immediately
Zero Cross enabled
Soft Ramp enabled
Soft Ramp and Zero Cross enabled (default)
Table 16. PGA Soft Cross or Zero Cross Mode Selection
6.9.2
Analog Input Selection (Bits 2:0)
Function:
These bits are used to select the input source for the PGA and ADC. Please see Table 17 .
Sel2
0
0
0
0
1
1
1
1
Sel1
0
0
1
1
0
0
1
1
Sel0
0
1
0
1
0
1
0
1
PGA/ADC Input
Microphone-Level Inputs (+32 dB Gain Enabled)
Line-Level Input Pair 1
Line-Level Input Pair 2
Line-Level Input Pair 3
Line-Level Input Pair 4
Line-Level Input Pair 5
Line-Level Input Pair 6
Reserved
Table 17. Analog Input Multiplexer Selection
6.10
6.11
DAC Channel A Volume Control - Address 0Ah
DAC Channel B Volume Control - Address 0Bh
7
Vol7
6
Vol6
5
Vol5
4
Vol4
3
Vol3
2
Vol2
1
Vol1
0
Vol0
6.11.1
48
Volume Control (Bits 7:0)
Function:
The digital volume control allows the user to attenuate the signal in 0.5 dB increments from 0 to -127 dB.
The Vol0 bit activates a 0.5 dB attenuation when set, and no attenuation when cleared. The Vol[7:1] bits
activate attenuation equal to their decimal equivalent (in dB). Example volume settings are decoded as
DS656F3
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