參數(shù)資料
型號: EVAL-ADAU1381Z
廠商: Analog Devices Inc
文件頁數(shù): 64/84頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR ADAU1381
標(biāo)準(zhǔn)包裝: 1
主要目的: 音頻編解碼器
嵌入式:
已用 IC / 零件: ADAU1381
已供物品:
相關(guān)產(chǎn)品: ADAU1381BCBZ-RL7DKR-ND - IC AUDIO CODEC STEREO LN 30WLCSP
ADAU1381BCBZ-RL7CT-ND - IC AUDIO CODEC STEREO LN 30WLCSP
ADAU1381BCBZ-RL-ND - IC AUDIO CODEC STEREO LN 30WLCSP
ADAU1381BCPZ-RL7-ND - IC AUDIO CODEC STEREO LN 32LFCSP
ADAU1381BCPZ-RL-ND - IC AUDIO CODEC STEREO LN 32LFCSP
ADAU1381BCBZ-RL7TR-ND - IC AUDIO CODEC STEREO LN 30WLCSP
ADAU1381BCPZ-ND - IC AUDIO CODEC STEREO LN 32LFCSP
ADAU1381
Rev. B | Page 67 of 84
Register 16425 (0x4029), Playback Power Management
This register controls the unity current supplied to each functional
block described. Within the functional blocks, the current can
be multiplied. Normal operation has a base current of 2.5 μA,
enhanced performance has a base current of 3 μA, power saving
has a base current of 2 μA, and extreme power saving has a base
current of 1.5 μA. Enhanced performance mode offers the best
audio quality but also uses the most current.
Bit [7:6], Speaker Amplifier Bias Control
These bits control the amount of unity bias current allotted to
the speaker amplifier.
Bits[5:4], DAC Bias Control
These bits control the amount of unity bias current allotted to
the DAC.
Bits[3:2], Back-End Bias Control
These bits control the amount of unity bias current allotted to
the playback mixers and amplifiers.
Bit 1, Back-End Right Enable
This bit enables the playback mixers and amplifiers.
Bit 0, Back-End Left Enable
This bit enables the playback mixers and amplifiers.
Table 55. Playback Power Management Register
Bits
Description
Default
[7:6]
Speaker amplifier bias control
00
00: normal operation
01: power saving
10: enhanced performance
00: reserved
[5:4]
DAC bias control
00
00: normal operation
01: extreme power saving
10: power saving
00: enhanced performance
[3:2]
Back-end bias control
00
00: normal operation
01: extreme power saving
10: power saving
00: enhanced performance
1
Back-end right enable
0
0: disabled
1: enabled
0
Back-end left enable
0
0: disabled
1: enabled
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