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| 型号： | TLV320ADC3101IRGER |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC24 |
| 封装： | GREEN, PLASTIC, VQFN-24 |
| 文件页数： | 45/84页 |
| 文件大小： | 1363K |
| 代理商： | TLV320ADC3101IRGER |
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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
www.ti.com...................................................................................................................................... SLAS553A – NOVEMBER 2008 – REVISED SEPTEMBER 2009
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
AVDD(1)
Analog supply voltage
2.6
3.3
3.6
V
DVDD(1)
Digital core supply voltage
1.65
1.8
1.95
V
IOVDD(1)
Digital I/O supply voltage
1.1
1.8
3.6
V
VI
Analog full-scale 0-dB input voltage (AVDD = 3.3 V)
0.707
Vrms
Digital output load capacitance
10
pF
TA
Operating free-air temperature
–40
85
°C
(1)
Analog voltage values are with respect to AVSS; digital voltage values are with respect to DVSS.
At 25°C, AVDD = 3.3 V , IOVDD = 1.8 V, DVDD = 1.8 V, fS = 48-kHz, 16-bit audio data (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
AUDIO ADC
Input signal level (0-dB)
Single-ended input
0.707
Vrms
Input common-mode voltage
Single-ended input
1.35
Vrms
Signal-to-noise ratio,
fS = 48 kHz, 0-dB PGA gain, IN1 inputs selected
SNR
80
92
dB
A-weighted(1) (2)
and ac-shorted to ground
Dynamic range,
fS = 48 kHz, 1-kHz –60-dB full-scale input
92
dB
A-weighted(1) (2)
applied at IN1 inputs, 0-dB PGA gain
–90
–75
dB
fS = 48 kHz, 1-kHz –2-dB full-scale input applied
THD
Total harmonic distortion
at IN1 inputs, 0-dB PGA gain
0.003%
0.017%
234 Hz, 100 mVPP on AVDD, single-ended input
46
PSRR
Power supply rejection ratio
dB
234 Hz, 100 mVPP on AVDD, differential input
68
ADC channel separation
1 kHz, –2 dB IN1L to IN1R
–73
dB
ADC gain error
1 kHz input, 0-dB PGA gain
0.7
dB
ADC programmable-gain
1-kHz input tone, RSOURCE < 50
40
dB
amplifier maximum gain
ADC programmable-gain
0.502
dB
amplifier step size
IN1 inputs, routed to single ADC
35
Input mix attenuation = 0 dB
IN2 inputs, input mix attenuation = 0 dB
35
Input resistance
k
IN1 inputs, input mix attenuation = –6 dB
62.5
IN2 inputs, input mix attenuation = –6 dB
62.5
Input capacitance
10
pF
Input level control minimum
0
dB
attenuation setting
Input level control maximum
6
dB
attenuation setting
Input level control attenuation
6
dB
step size
(1)
Ratio of output level with 1-kHz full-scale sine-wave input, to the output level with the inputs short-circuited, measured A-weighted over a
20-Hz to 20-kHz bandwidth using an audio analyzer.
(2)
All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may
result in higher THD and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter
removes out-of-band noise, which, although not audible, may affect dynamic specification values.
Copyright 2008–2009, Texas Instruments Incorporated
5
Product Folder Link(s) :TLV320ADC3101
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