參數(shù)資料
型號(hào)： TLC320AD90CFN
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC64
封裝： PLASTIC, LCC-64
文件頁數(shù)： 32/51頁
文件大?。?/td> 227K
代理商： TLC320AD90CFN
3–3
3.3.4
Analog Electrical Characteristics
3.3.4.1
Analog-to-Digital Converter, TA = 25°C, AVDD = DVDD = 5 V ± 5%, fs = 48 kHz,
Gain Settings at 0 dB, Input = 1 Vrms Sine Wave at 1 kHz
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
16
Bits
Instantaneous dynamic range (see Note 7)
All inputs except MIC
80
85
dB
Instantaneous dynamic range (see Note 7)
MIC (see Note 9)
70
72
dB
Signal to (noise + distortion) (see Note 8)
All inputs except MIC
84
88
dB
Signal-to-(noise + distortion) (see Note 8)
MIC (see Note 9)
72
77
dB
Total harmonic distortion + noise (reference full
scale)
0.004
0.007
%
Signal-to-intermodulation distortion
Line Load
90
dB
Idle channel tone rejection
–105
dB
Offset error
3
mV
ADC crosstalk
All inputs
–110
104
dB
Frequency response
0 to 0.4 fs
–0.1
0.1
dB
ADC conversion latency
16
Number of
fs periods
NOTES:
7. Exceeds the AC‘97 specification. Measured using Awtd noise curve.
8. Measured using Awtd noise curve.
9. Microphone gain settings: 20-dB boost = on, gain = 12 dB
3.3.4.2
Digital-to-Analog Converter, TA = 25°C, AVDD = DVDD = 5 V ± 5%, fs = 48 kHz,
All Gains = 0 dB
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC resolution
16
Bits
DAC signal-to-noise ratio
see Note 10
90
93
dB
Instantaneous dynamic range
see Note 11
83
87
dB
Signal-to-noise + distortion
see Note 11
74
dB
Signal-to-intermodulation distortion
90
dB
Total harmonic distortion
0.01
0.02
%
Frequency response (20 Hz to 19.2 kHz)
–0.5
0.1
dB
Deviation from linear phase
1.4
Degree
DAC crosstalk
–99
–94
dB
DAC conversion latency
16
Number of
fs Periods
NOTES: 10. Exceeds the AC‘97 specifications. Specified as the ratio of the rms output level with 1-kHz full-scale input
to the rms output level with all zeros into the digital input. Measured Awtd over a 20-Hz to 20-kHz bandwidth
(AES17–1991 idle channel noise or EIAJ CP–307 signal-to-noise ratio).
11. Measured using Awtd noise curve.
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