參數(shù)資料
型號: TLC320AD90C
廠商: Texas Instruments, Inc.
元件分類: Codec
英文描述: Stereo Audio Codec(立體聲音頻編碼譯碼器)
中文描述: 立體聲音頻編解碼器(立體聲音頻編碼譯碼器)
文件頁數(shù): 39/51頁
文件大小: 219K
代理商: TLC320AD90C
3–4
3.3.4.3
Analog Input Performance Data, T
A
= 25
°
C, AV
DD
= DV
DD
= 5 V
±
5%, f
s
= 48 kHz,
For Gain Settings at 0 dB, Input = 1 Vrms Sine Wave at 1 kHz
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DC ACCURACY
Programmable input gain settings
(all settings tested)
All inputs except MIC
–34.5
12
dB
Interchannel gain mismatch
All inputs
±
0.15
1.5
±
0.4
1.6
dB
Gain step size for PGAs on the inputs
All inputs
1.4
dB
Gain drift
100
ppm/
°
C
%
Gain error with respect to 2.8 Vpp
Offset error
All inputs
10
All inputs
100
LSB
Crosstalk between input channels
–110
–104
dB
Common-mode rejection ratio
CD pseudo-diff input
60
67
dB
INPUT VOLTAGE
All inputs except MIC
2.66
2.8
2.94
Vpp
Vpp
Full scale input voltage
Full-scale input voltage
MIC1, MIC2 inputs, 20 dB off
2.8
MIC1, MIC2 inputs,
with 20 dB boost on
.28
Vpp
INPUT IMPEDANCE
MIC1, MIC2 only, resistance
10
k
pF
MIC1, MIC2 only, capacitance
15
Input impedance
All other analog inputs,
resistance
20
40
k
All other analog inputs,
capacitance
15
pF
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