PCM1802DB datasheet(4/28 Pages) TI1

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ELECTRICAL CHARACTERISTICS

PCM1802

SLES023C – DECEMBER 2001 – REVISED JANUARY 2005

all specifications at T

A = 25°C, VCC = 5 V, VDD = 3.3 V, master mode, fS = 44.1 kHz, system clock = 384 fS, oversampling ratio

×128, 24-bit data (unless otherwise noted)

PCM1802DB

TEST CONDITIONS

UNIT

MIN

TYP

MAX

Resolution

Bits

DATA FORMAT

Left-justified, I2S,

Audio data interface format

right-justified

Audio data bit length

20, 24

Bits

Audio data format

MSB first, 2s complement

Sampling frequency

44.1

kHz

256 fS

4.096

11.2896

24.576

384 fS

6.144

16.9344

36.864

System clock frequency

MHz

512 fS

8.192

22.5792

49.152

768 fS

12.288

33.8688

(1)

INPUT LOGIC

VIH(2)

VDD

VIL(2)

0.8

Input logic level

VDC

VIH(3)

5.5

VIL(3)

0.8

IIH(4)

VIN = VDD

±10

IIL(4)

VIN = 0 V

±10

Input logic current

µA

IIH(5)

VIN = VDD

100

IIL(5)

VIN = 0 V

±10

OUTPUT LOGIC

VOH(6)

IOUT = –1 mA

2.8

Output logic level

VDC

VOL(6)

IOUT = 1 mA

0.5

DC ACCURACY

Gain mismatch, channel-to-channel

±1

±4 %FSR

Gain error

±2

±6 %FSR

Bipolar zero error

HPF bypassed (7)

±2

%FSR

DYNAMIC PERFORMANCE (8)

fS = 44.1 kHz, VIN = –0.5 dB

0.0015%

0.003%

fS = 96 kHz, VIN = –0.5 dB (9)

0.0025%

THD+N

Total harmonic distortion + noise

fS = 44.1 kHz, VIN = –60 dB

0.7%

fS = 96 kHz, VIN = –60 dB (9)

1.2%

fS = 44.1 kHz, A-weighted

100

105

Dynamic range

fS = 96 kHz, A-weighted (9)

103

fS = 44.1 kHz, A-weighted

100

105

S/N ratio

fS = 96 kHz, A-weighted (9)

103

(1)

Maximum system clock frequency is not applicable at 768 fS, fS = 96 kHz. See the System Clock section of this data sheet.

(2)

Pins 9–11: FSYNC, LRCK, BCK (Schmitt-trigger input in slave mode)

(3)

Pins 7–8, 15–20: PDWN, BYPAS, SCKI, OSR, FMT0, FMT1, MODE0, MODE1 (Schmitt-trigger input, 5-V tolerant)

(4)

Pins 9–11, 15: FSYNC, LRCK, BCK (Schmitt-trigger input in slave mode), SCKI (Schmitt-trigger input)

(5)

Pins 7–8, 16–20: PDWN, BYPAS, OSR, FMT0, FMT1, MODE0, MODE1 (Schmitt-trigger input, with 50-k

Ω typical pulldown resistor)

(6)

Pins 9–12: FSYNC, LRCK, BCK (in master mode), DOUT

(7)

High-pass filter

(8)

Analog performance specifications are tested with System Two™ audio measurement system by Audio Precision™, using 400-Hz HPF,

20-kHz LPF for 44.1-kHz operation, 40-kHz LPF for 96-kHz operation in RMS mode.

(9)

fS = 96 kHz, system clock = 256 fS, oversampling ratio = ×64.

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