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<strong>UAC</strong> <strong>357xB</strong><br />
ADVANCE INFORMATION<br />
Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions<br />
XTALK AI<br />
Crosstalk attenuation<br />
left/right channel for analog<br />
inputs<br />
ADCR/L -<br />
ADCL/R,<br />
MICL/R-<br />
MICR/L,<br />
−95<br />
−81<br />
−85<br />
dB<br />
BW = 20 Hz...22 kHz,<br />
volume = 0 dB,<br />
Input 1 kHz at −3 dB FS ,<br />
digital output (I 2 S)<br />
ADCL/R-<br />
MICINL/R<br />
−76<br />
−70<br />
PSRR A0<br />
Power Supply Rejection<br />
Ratio<br />
AVDD,<br />
OUTL/R<br />
88 4) dB 1 kHz sine wave at<br />
100 mV rms<br />
AVDD,<br />
OUTL/R<br />
54 4) dB ≤ 100 kHz sine wave at<br />
100 mV rms<br />
PSRR AI<br />
Power supply rejection ratio<br />
for analog audio inputs<br />
AVDD,<br />
ADCL/R<br />
MICINL/R<br />
80 4) dB 1 kHz sine at<br />
100 mV rms , 3 V Mode,<br />
digital output (I 2 S)<br />
66 4) dB ≤ 10 kHz sine at<br />
100 mV rms , 3 V Mode,<br />
digital output (I 2 S)<br />
CMRR AI<br />
Common Mode Rejection<br />
for Analog Line Input<br />
ADCL/R<br />
ADCREF<br />
−55<br />
1 kHz sine at<br />
100 mV RMS<br />
…600 mV RMS ,<br />
3V mode<br />
R D/A D/A Pass Band Ripple OUTL/R 0.1 4) dB 0...20 kHz<br />
(with 2 nd- order post<br />
filter)<br />
A D/A D/A Stop Band Attenuation 40 4) dB 31 kHz...164 kHz<br />
(with 2 nd -order post<br />
filter)<br />
THD HP Total Harmonic Distortion OUTL/R −90 −85 dB BW = 20 Hz...22 kHz,<br />
R L ≥10 kΩ, Volume =<br />
0 dB, Input 1 kHz at<br />
−3 dB FS digital (I 2 S)<br />
THD HP Total Harmonic Distortion OUTL/R<br />
OUTL/R−<br />
OUTC<br />
−78 dB BW = 20 Hz...22 kHz,<br />
unweighted, R L ≥ 32 Ω,<br />
Volume = 0 dB, Input<br />
1kHz at −3 dB FS digital<br />
(I 2 S)<br />
SNR AO1 Signal-to-Noise Ratio 2) OUTL/R<br />
OUTL/R−<br />
OUTC<br />
90 97<br />
94<br />
dB (A)<br />
BW = 20 Hz...22 kHz,<br />
A-weighted, R L ≥10 kΩ,<br />
Volume = 0 dB,<br />
Input 1 kHz at<br />
− 20 dB FS digital (I 2 S)<br />
SNR AO2 Signal-to-Noise Ratio 2) OUTL/R 95 102 dB (A) BW = 20 Hz...22 kHz,<br />
A-weighted, R L ≥10 kΩ,<br />
Volume = −40 dB,<br />
Input 1 kHz at<br />
−3 dB FS digital (I 2 S)<br />
2) related to 0 dB FS input level<br />
3) applying a signal of 100 mV rms at the Microphone input delivers a 0 dB FS signal at the ADC output (volume=0 dB)<br />
4) not tested in production<br />
46 Aug. 20, 2004; 6251-650-1AI Micronas
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