參數(shù)資料
型號(hào): TLC320AD90CPMR
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: PLASTIC, LQFP-64
文件頁(yè)數(shù): 33/51頁(yè)
文件大?。?/td> 227K
代理商: TLC320AD90CPMR
3–4
3.3.4.3
Analog Input Performance Data, TA = 25°C, AVDD = DVDD = 5 V ± 5%, fs = 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
±0.4
dB
Gain step size for PGAs on the inputs
All inputs
1.4
1.5
1.6
dB
Gain drift
100
ppm/
°C
Gain error with respect to 2.8 Vpp
All inputs
10
%
Offset error
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
Full scale input voltage
MIC1, MIC2 inputs, 20 dB off
2.8
Vpp
Full-scale input voltage
MIC1, MIC2 inputs,
with 20 dB boost on
.28
Vpp
INPUT IMPEDANCE
MIC1, MIC2 only, resistance
10
k
MIC1, MIC2 only, capacitance
15
pF
Input impedance
All other analog inputs,
resistance
20
40
k
All other analog inputs,
capacitance
15
pF
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