参数资料
型号: MAS3519F
厂商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分类: Codec
英文描述: MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec
中文描述: 新加坡金融管理局35x9F的MPEG 2 / 3层,AAC音频解码器,G.729的附件A编解码器
文件页数: 46/92页
文件大小: 1186K
代理商: MAS3519F
MAS 35x9F
DATA SHEET
46
June 30, 2004; 6251-505-1DS
Micronas
3.4.3. Codec Registers
Table 3–16:
Codec control registers on I
2
C subaddress 6C
hex
Register
Address
(hex)
Function
Name
CONVERTER CONFIGURATION
00 00
Audio Codec Configuration
0 dB is related to the D/A full-scale output voltage
Please refer to (see Section 4.6.3. on page 81).
bit[15:12]
A/D converter left amplifier gain = n*1.5
3 [dB]
bit[11:8]
A/D converter right amplifier gain = n*1.5
3 [dB]
1111
+19.5 dB
1110
+18.0 dB
...
...
0011
+1.5 dB
0010
0.0 dB
0001
1.5 dB
0000
3.0 dB
bit[7:4]
Microphone amplifier gain = n*1.5+21 [dB]
1111
+43.5 dB
1110
+42.0 dB
...
...
0001
+22.5 dB
0000
+21.0 dB
bit[3]
Input selection for left A/D converter channel
0
line-in
1
microphone
Enable left A/D converter
1)
Enable right A/D converter
1)
Enable D/A converter
1)
bit[2]
bit[1]
bit[0]
CONV_CONF
1)
The generation of the internal DC reference voltage for the D/A converter is also controlled with this bit. In order
to avoid click noise, the reference voltage at pin AGNDC should have reached a near ground potential before
repowering the D/A converter after a short down phase.
Alternatively, at least one of the A/D converters (bits[2] or [1]) should remain set during short power-down phases
of the D/A. Then the DC reference voltage generation for the D/A converter will not be interrupted.
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相关代理商/技术参数
参数描述
MAS3529F 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec
MAS3539F 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec
MAS3549F 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec
MAS3559F 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec
MAS3587F 制造商:未知厂家 制造商全称:未知厂家 功能描述:MPEG Layer 3 Audio Encoder/Decoder