參數(shù)資料
型號(hào)： EVAL-ADAU1381Z
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 44/84頁(yè)
文件大小： 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： 否
已用 IC / 零件： ADAU1381
已供物品： 板
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 49 of 84
Register 16393 (0x4009), Record Power Management
This register manages the power consumption for the record
path. In particular, the current distribution for the mixer boosts,
ADC, front-end mixer, and PGAs can be set in one of four
modes. The four modes of operation available that affect the
performance of the device are normal operation, power saving,
enhanced performance, and extreme power saving. 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
a 2 μA, and extreme power saving has a base current of 1.5 μA.
Enhanced performance offers the highest performance, but
with the trade-off of higher power consumption.
Bits[6:5], Mixer Amplifier Boost
These bits set the power mode of operation for the front-end
mixer boost. With higher AVDD1 levels, distortion may become
an issue affecting performance. Each boost level enhances the
THD + N performance at 3.3 V AVDD1.
Bits[4:3], ADC Bias Control
These bits set the bias current for the ADCs based on the mode
of operation selected.
Bits[2:1], Front-End Bias Control
These bits set the bias current for the PGAs and mixers in the
front-end record path.
Table 36. Record Power Management Register
Bits
Description
Default
7
Reserved
[6:5]
Mixer amplifier boost
00
00: normal operation
01: Boost Level 1
10: Boost Level 2
11: Boost Level 3
[4:3]
ADC bias control
00
00: normal operation
01: extreme power saving
10: power saving
11: enhanced performance
[2:1]
Front-end bias control
00
00: normal operation
01: extreme power saving
10: power saving
11: enhanced performance
0
Reserved
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