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參數(shù)資料
型號： PCM3168ATPAPRQ1G4
廠商： Texas Instruments
文件頁數(shù)： 40/68頁
文件大?。?/td> 0K
描述： IC 24-BIT AUDIO CODEC 64-HTQFP
標準包裝： 1,000
類型： 音頻編解碼器
數(shù)據(jù)接口： 串行
分辨率（位）： 24 b
ADC / DAC 數(shù)量： 6 / 8
三角積分調(diào)變： 是
S/N 比，標準 ADC / DAC (db)： 107 / 112（差分），104 / 112（單端）
動態(tài)范圍，標準 ADC / DAC (db)： 107 / 112（差分），104 / 112（單端）
電壓 - 電源，模擬： 4.5 V ~ 5.5 V
電壓 - 電源，數(shù)字： 3 V ~ 3.6 V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 64-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝： 64-HTQFP（10x10）
包裝： 帶卷 (TR)
www.ti.com ......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008
ZREV
DAC Zero flag polarity select
This bit controls the polarity of the zero flag pin.
Default value: 0.
ZREV
DAC Zero flag polarity select
0
High for zero detect (default)
1
Low for zero detect
DEC
HEX
B7
B6
B5
B4
B3
B2
B1
B0
71
47
ATDA07
ATDA06
ATDA05
ATDA04
ATDA03
ATDA02
ATDA01
ATDA00
72
48
ATDA17
ATDA16
ATDA15
ATDA14
ATDA13
ATDA12
ATDA11
ATDA10
73
49
ATDA27
ATDA26
ATDA25
ATDA24
ATDA23
ATDA22
ATDA21
ATDA20
74
4A
ATDA37
ATDA36
ATDA35
ATDA34
ATDA33
ATDA32
ATDA31
ATDA30
75
4B
ATDA47
ATDA46
ATDA45
ATDA44
ATDA43
ATDA42
ATDA41
ATDA40
76
4C
ATDA57
ATDA56
ATDA55
ATDA54
ATDA53
ATDA52
ATDA51
ATDA50
77
4D
ATDA67
ATDA66
ATDA65
ATDA64
ATDA63
ATDA62
ATDA61
ATDA60
78
4E
ATDA77
ATDA76
ATDA75
ATDA74
ATDA73
ATDA72
ATDA71
ATDA70
79
4F
ATDA87
ATDA86
ATDA85
ATDA84
ATDA83
ATDA82
ATDA81
ATDA80
ATDAx[7:0]
DAC Digital attenuation level setting
Where x = 0 and 1 to 8, corresponding to the DAC channel, DACx (x = 1 to 8).
Each DAC channel (VOUTx) has a digital attenuator function. The attenuation level can be set
from 0 dB to –100 dB in 0.5-dB steps, and also can be set to infinite attenuation (mute). The
attenuation level change from current value to target value is performed by incrementing or
decrementing with s-curve responses and a time set by ATSPDA. While an attenuation level
change sequence is in progress, new processing of the attenuation level change for new
commands are ignored; any new commands are overwritten into the command buffer. The last
command for the attenuation level change is performed after the present attenuation level
change sequence is finished.
The attenuation level for each channel can be set individually using the following formula; the
table below shows attenuation levels for various settings.
Attenuation level (dB) = 0.5 × (ATDAx[7:0]DEC – 255), where ATDAx[7:0]DEC = 0 through 255
for ATDAx[7:0]DEC = 0 through 54, attenuation is set to infinite attenuation (Mute).
ATDA0[7:0] are used to control all channels at the same time with attenuation data of ATDA0[7:0]
+ ATDAx[7:0] in decibel number, when ATMDDA is set to '1'. This scheme provides preset and
master volume operation.
Default value: 1111 1111.
Copyright 2008, Texas Instruments Incorporated
45
Product Folder Link(s): PCM3168A PCM3168A-Q1
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