參數(shù)資料
型號： AD1981BLJST-REEL
廠商： ANALOG DEVICES INC
元件分類： 消費(fèi)家電
英文描述： AC 97 SoundMAX Codec
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝： MS-026BBC, LQFP-48
文件頁數(shù)： 17/32頁
文件大小： 326K
代理商： AD1981BLJST-REEL
AD1981BL
CD VOLUME REGISTER
Index 0x12
Rev. A | Page 17 of 32
Reg No.
0x12
Name
CD Volume
D15
CVM
D14
X
D13
X
D12
LCV4
D11
LCV3
D10
LCV2
D9
LCV1
D8
LCV0
D7
RM
1
D6
X
D5
X
D4
RCV4
D3
RCV3
D2
RCV2
D1
RCV1
D0
RCV0
Default
0x8808
1
For AC ‘97 compatibility, Bit D7 (RM) is available only by setting the MSPLT bit, Register 0x76. The MSPLT bit enables separate mute bits for the left and right channels.
If MSPLT is not set, the RM bit has no effect.
All registers are not shown, and bits containing an X are assumed to be reserved. Refer to Table 22 for examples.
Table 19.
Bit
Mnemonic
Function
RCV [4:0]
Right CD Volume
Allows setting the CD right-channel attenuator in 32 volume levels. The LSB represents 1.5 dB, and the
gain range is +12 dB to 34.5 dB. The default value is 0 dB, mute enabled.
RM
Right-Channel Mute
Once enabled by the MSPLT bit in Register 0x76, this bit mutes the right channel separately from the
CVM bit. Otherwise, this bit always reads 0 and has no affect when set to 1.
LCV [4:0]
Left CD Volume
Allows setting the CD left-channel attenuator in 32 volume levels. The LSB represents 1.5 dB, and the
gain range is +12 dB to 34.5 dB. The default value is 0 dB, mute enabled.
CVM
CD Volume Mute
When this bit is set to 1, both the left and right channels are muted, unless the MSPLT bit in
Register 0x76 is set to 1, in which case this mute bit affects only the left channel.
AUX VOLUME REGISTER
Index 0x16
Reg No.
0x16
Name
AUX Volume
D15
AM
D14
X
D13
X
D12
LAV4
D11
LAV3
D1
LAV2
D9
LAV1
D8
LAV0
D7
RM
1
D6
X
D5
X
D4
RAV4
D3
RAV3
D2
RAV2
D1
RAV1
D0
RAV0
Default
0x8808
1
For AC ’97 compatibility, Bit D7 (RM) is available only by setting the MSPLT bit, Register 0x76. The MSPLT bit enables separate mute bits for the left and right channels.
If MSPLT is not set, the RM bit has no effect.
All registers are not shown, and bits containing an X are assumed to be reserved. Refer to Ta
Table 20.
Bit
Mnemonic
Function
RAV [4:0]
Right AUX Volume
Allows setting the AUX right-channel attenuator in 32 volume levels. The LSB represents 1.5 dB, and
the gain range is +12 dB to 34.5 dB. The default value is 0 dB, mute enabled.
RM
Right-Channel Mute
Once enabled by the MSPLT bit in Register 0x76, this bit mutes the right channel separately from the
AM bit. Otherwise, this bit always reads 0 and has no affect when set to 1.
LAV [4:0]
Left AUX Volume
Allows setting the AUX left-channel attenuator in 32 volume levels. The LSB represents 1.5 dB, and
the gain range is +12 dB to 34.5 dB. The default value is 0 dB, mute enabled.
AM
AUX Volume Mute
When this bit is set to 1, both the left and right channels are muted, unless the MSPLT bit in
Register 0x76 is set to 1, in which case this mute bit affects only the left channel.
for examples.
ble 22
相關(guān)PDF資料
PDF描述
AD1981BLJSTZ AC 97 SoundMAX Codec
AD1981BLJSTZ-REEL AC 97 SoundMAX Codec
ADSP-1981BL AC 97 SoundMAX Codec
AD1981BL AC ’97 SoundMAX㈢ Codec
AD1981BLJSTZ2 AC ’97 SoundMAX㈢ Codec
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD1981BLJSTZ 制造商:Analog Devices 功能描述:Audio Codec 4ADC / 2DAC 20-Bit 48-Pin LQFP 制造商:Analog Devices 功能描述:IC AUDIO CODEC
AD1981BLJSTZ2 制造商:AD 制造商全稱:Analog Devices 功能描述:AC ’97 SoundMAX㈢ Codec
AD1981BLJSTZ-REEL 制造商:Analog Devices 功能描述:Audio Codec 4ADC / 2DAC 20-Bit 48-Pin LQFP T/R
AD1981BLJSTZ-REEL2 制造商:AD 制造商全稱:Analog Devices 功能描述:AC ’97 SoundMAX㈢ Codec
AD1981BWBSTZ 制造商:Analog Devices 功能描述:
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