Not Recommended for New Designs

PCM2903B

SLES228 – DECEMBER 2008

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ELECTRICAL CHARACTERISTICS (continued)

All specifications at TA = +25°C, VCCC = VCCP1 = VCCP2 = VCCX = VDD = 3.3 V, fS = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless

otherwise noted.

PCM2903B

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ADC CHARACTERISTICS

Resolution

8, 16

Bits

Audio data channel

1, 2

Channel

ADC Clock Frequency

fS

Sampling frequencies

8, 11.025, 16, 22.05, 32, 44.1, 48

kHz

ADC DC Accuracy

% of

Gain mismatch, channel-to-channel

±1

±5

FSR

% of

Gain error

±2

±10

FSR

% of

Bipolar zero error

±0

FSR

ADC Dynamic Performance(1)

VIN = –1 dB

0.01

0.02

%

THD+N

Total harmonic distortion plus noise

VIN = –60 dB

5

%

Dynamic range

A-weighted

81

89

dB

SNR

Signal-to-noise ratio

A-weighted

81

89

dB

Channel separation

80

85

dB

Analog Input

Input voltage

0.6 VCCC

VPP

Center voltage

0.5 VCCC

V

Input impedance

30

k

Ω

–3 dB

150

kHz

Antialising filter frequency response

fIN = 20 kHz

–0.08

dB

ADC Digital Filter Performance

Passband

0.454 fS

Hz

Stop band

0.583 fS

Hz

Passband ripple

±0.05

dB

Stop-band attenuation

–65

dB

td

Delay time

17.4/fS

s

HPF frequency response

–3 dB

0.078 fS/1000

Hz

(1)

fIN = 1 kHz, using a System Two™ audio measurement system by Audio Precision™ in RMS mode with a 20-kHz LPF and 400-Hz HPF

in the calculation.

4

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