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CS4349-CZZ 参数 Datasheet PDF下载

CS4349-CZZ图片预览
型号: CS4349-CZZ
PDF下载: 下载PDF文件 查看货源
内容描述: 192 kHz的DAC W /音量控制和1 Vrms的@ 3.3 V [192 kHz DAC w/ Volume Control and 1 Vrms @ 3.3 V]
分类和应用:
文件页数/大小: 40 页 / 819 K
品牌: CIRRUS [ CIRRUS LOGIC ]
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CS4349  
ATAPI_A1 ATAPI_A0 ATAPI_B1 ATAPI_B0  
AOUTA  
aL  
AOUTB  
MUTE  
bR  
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
aL  
aL  
bL  
aL  
b[(L+R)/2]  
MUTE  
bR  
a[(L+R)/2]  
a[(L+R)/2]  
a[(L+R)/2]  
a[(L+R)/2]  
bL  
b[(L+R)/2]  
Table 4. ATAPI Decode  
8.4  
Mute Control - Register 04h  
7
6
Reserved  
0
5
4
MUTE_A  
0
3
MUTE_B  
0
2
Reserved  
0
1
Reserved  
0
0
Reserved  
0
AMUTE  
1
MUTEC A=B  
0
8.4.1  
Auto-Mute (AMUTE) Bit 7  
Function:  
When set to 1 (default), the Digital-to-Analog converter output will mute following the reception of 8192  
consecutive audio samples of static 0 or -1. A single sample of non-static data will release the mute. De-  
tection and muting is done independently for each channel. The quiescent voltage on the output will be  
retained, and the Mute Control pin will go active during the mute period.  
When set to 0, this function is disabled  
8.4.2  
8.4.3  
AMUTEC = BMUTEC (MUTEC A=B) Bit 5  
Function:  
When set to 0 (default), the AMUTEC and BMUTEC pins operate independently.  
When set to 1, the individual controls for AMUTEC and BMUTEC are internally connected through an  
AND gate prior to the output pins. Therefore, the external AMUTEC and BMUTEC pins go active only  
when the requirements for both AMUTEC and BMUTEC are valid.  
Channel A Mute (MUTE_A) Bit 4 & Channel B Mute (MUTE_B) Bit 3  
Function:  
When set to 1, the Digital-to-Analog converter output will mute. The quiescent voltage on the output will  
be retained. The muting function is effected, similar to attenuation changes, by the Soft and Zero Cross  
bits in the Volume and Mixing Control register. The corresponding MUTEC pin will go active following any  
ramping due to the soft and zero cross function.  
When set to 0 (default), this function is disabled.  
32  
DS782F1