TLV320AIC3253

SLOS631 – MARCH 2010

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Electrical Characteristics, Audio Outputs

PLL disabled unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Audio DAC – Stereo Single-Ended Headphone Output

Load = 16

Ω (single-ended), 50pF

Headphone Output on AVdd Supply,

Input & Output CM=0.9V, DOSR = 128,

Device Setup

word length = 16 bits;

Processing Block = PRB_P1

Power Tune = PTM_P3

Full scale output voltage (0dB)

0.5

SNR

All zeros fed to DAC input, modulator in

88

100

dB

excited state

DR

–60dB 1kHz input full-scale signal, Word

99

dB

Length = 20 bits, Power Tune = PTM_P4

THD+N

Total Harmonic Distortion plus Noise

–3dB full-scale, 1-kHz input signal

–80

–70

dB

DAC Gain Error

0dB, 1kHz input full scale signal

±0.1

dB

DAC Mute Attenuation

Mute

127

dB

DAC channel separation

–1dB, 1kHz signal, between left and right HP

92

dB

out

100mVpp, 1kHz signal applied to AVdd

70

dB

DAC PSRR

100mVpp, 217Hz signal applied to AVdd

75

dB

13

THDN < 1%, Input CM=0.9V,

Output CM=0.9V, Channel Gain=2dB

Power Delivered

mW

47

THDN < 1% Input CM=0.9V,

Output CM=1.65V, Channel Gain=8dB

Audio DAC – Stereo Single-Ended Headphone Output

Load = 16

Ω (single-ended), 50pF,

Headphone Output on AVdd Supply,

Input & Output CM=0.75V; AVdd=1.5V,

Device Setup

Channel Gain = –2dB, word length=20-bits;

Processing Block = PRB_P1,

Power Tune = PTM_P4

Full scale output voltage (0dB)

0.375

SNR

All zeros fed to DAC input, modulator in

99

dB

excited state

DR

-60dB 1 kHz input full-scale signal

98

dB

THD+N

Total Harmonic Distortion plus Noise

–3dB full-scale, 1-kHz input signal

–84

dB

Audio DAC – Mono Differential Headphone Output

(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

8

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