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ELECTRICAL CHARACTERISTICS

PCM1801

SBAS131C – OCTOBER 2000 – REVISED JULY 2007

All specifications at TA = 25°C, VDD = VCC = 5 V, fS = 44.1 kHz, 16-bit data, and SYSCLK = 384 fS, unless otherwise noted.

PCM1801U

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

RESOLUTION

16

Bits

DIGITAL INPUT/OUTPUT

VIH

(1)

2

Input logic level

VDC

VIL

(1)

0.8

IIN

(2)

±10

Input logic current

μA

IIN

(3)

100

VOH

(4)

IOH = –1.6 mA

4.5

Output logic level

VDC

VOL

(4)

IOL = 3.2 mA

0.5

fS

Sampling frequency

4

44.1

48

kHz

256 fS

1.024

11.2896

12.288

System clock frequency

384 fS

1.536

16.9344

18.432

MHz

512 fS

2.048

22.5792

24.576

DC ACCURACY

Gain mismatch, channel-to-channel

±1

±2.5

% of FSR

Gain error

±2

±5

% of FSR

Gain drift

±20

ppm of FSR/

°C

Bipolar zero error

High-pass filter bypassed

±2

% of FSR

Bipolar zero drift

High-pass filter bypassed

±20

ppm of FSR/

°C

DYNAMIC PERFORMANCE(5)

FS (–0.5 dB)

–88

–80

THD+N

dB

–60 dB

–90

Dynamic range

A-weighted

90

93

dB

Signal-to-noise ratio

A-weighted

90

93

dB

Channel separation

87

90

dB

ANALOG INPUT

Input range

FS (VIN = 0 dB)

2.828

Vp-p

Center voltage

2.1

V

Input impedance

30

k

Ω

Antialiasing filter frequency response

–3 dB

150

kHz

DIGITAL FILTER PERFORMANCE

Pass band

0.454 fS

Hz

Stop band

0.583 fS

Hz

Pass-band ripple

±0.05

dB

Stop-band attenuation

–65

dB

Delay time (latency)

17.4/fS

s

High-pass frequency response

–3 dB

0.019 fS

mHz

(1)

Pins 5, 6, 7, 9, and 10 (SCKI, BCK, LRCK, BYPAS, and FMT)

(2)

Pins 5, 6, 7 (SCKI, BCK, LRCK) Schmitt-trigger input

(3)

Pins 9, 10 (BYPAS, FMT) Schmitt-trigger input with 100-k

Ω typical pulldown resistor

(4)

Pin 8 (DOUT)

(5)

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

in the performance calculation.

4

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