Datasheet
TLV320ADC3001
www.ti.com
SLAS548C –OCTOBER 2008– REVISED APRIL 2011
ELECTRICAL CHARACTERISTICS
At 25°C, AVDD = 3.3 V, IOVDD = 1.8 V, DVDD = 1.8 V, f
S
= 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, f
S
= 48 kHz, 0-dB PGA gain, IN1 inputs selected
80 92 dB
A-weighted
(1) (2)
and AC-shorted to ground
Dynamic range, f
S
= 48 kHz, 1-kHz –60-dB full-scale input
92 dB
A-weighted
(1) (2)
applied at IN1 inputs, 0-dB PGA gain
f
S
= 48 kHz, 1-kHz –2-dB full-scale input applied –90 –75 dB
at IN1
THD Total harmonic distortion
0.003% 0.017%
inputs, 0-dB PGA gain
234 Hz, 100 mV
PP
on AVDD, single-ended input 46
Power-supply rejection ratio dB
234 Hz, 100 mV
PP
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 amplifier
1-kHz input tone, R
SOURCE
< 50 Ω 40 dB
maximum gain
ADC programmable-gain amplifier
0.502 dB
step size
IN1 inputs, routed to single ADC
35
Input mix attenuation = 0 dB
IN2 inputs, input mix attenuation = 0 dB 35
Input resistance kΩ
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 step
6 dB
size
ADC DIGITAL DECIMATION FILTER f
S
= 48 kHz
Filter gain from 0 to 0.39 f
S
Filter A, AOSR = 128 or 64 ±0.1 dB
Filter gain from 0.55 f
S
to 64 f
S
Filter A, AOSR = 128 or 64 –73 dB
Filter group delay Filter A, AOSR = 128 or 64 17/f
S
s
Filter gain from 0 to 0.39 f
S
Filter B, AOSR = 64 ±0.1 dB
Filter gain from 0.60 f
S
to 32 f
S
Filter B, AOSR = 64 -46 dB
Filter group delay Filter B, AOSR = 64 11/f
S
s
Filter gain from 0 to 0.39 f
S
Filter C, AOSR = 32 ±0.033 dB
Filter gain from 0.28 f
S
to 16 f
S
Filter C, AOSR = 32 -60 dB
Filter group delay Filter C, AOSR = 32 11/f
S
s
(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+N 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.
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