www.ti.com

ELECTRICAL CHARACTERISTICS

PCM1804

SLES022C – DECEMBER 2001 – REVISED OCTOBER 2007

All specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, master mode, single-speed mode, fS = 48 kHz, system clock = 256 fS,

24-bit data, unless otherwise noted.

PCM1804DB

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

Resolution

24

Bits

DATA FORMAT

Audio data interface format

Standard, I2S, left-justified

Audio data bit length

24

Bits

MSB first,

Audio data format

2s complement, DSD

DIGITAL INPUT/OUTPUT

Logic family

TTL compatible

(1) (2)

2

5.5

VIH

High-level input voltage

Vdc

(3)

2

VDD

VIL

Low-level input voltage

(1) (2) (3)

0.8

Vdc

VIN = VDD

(1)

65

100

IIH

High-level input current

VIN = VDD

(2)

±10

μA

VIN = VDD

(3)

±100

VIN = 0 V

(1) (2)

±10

IIL

Low-level input current

μA

VIN = 0 V

(3)

±50

VOH

High-level output voltage

IOH = –1 mA

(4)

2.4

Vdc

VOL

Low-level output voltage

IOL = 1 mA

(4)

0.4

Vdc

CLOCK FREQUENCY

fS

Sampling frequency

32

192

kHz

256 fS, single rate

(5)

12.288

384 fS, single rate

(5)

18.432

512 fS, single rate

(5)

24.576

768 fS, single rate

(5)

36.864

System clock frequency

MHz

256 fS, dual rate

(6)

24.576

384 fS, dual rate

(6)

36.864

128 fS, quad rate

(7)

24.576

192 fS, quad rate

(7)

36.864

DC ACCURACY

Gain mismatch, channel-

±3

% of FSR

to-channel

Gain error (VIN = –0.5 dB)

±4

% of FSR

Bipolar zero error

HPF bypass

±0.2

% of FSR

(1)

Pins 6–11, 19: FMT0, FMT1, S/M, OSR0, OSR1, OSR2, RST [Schmitt-trigger input with internal pulldown (51 k

μ typically), 5-V tolerant]

(2)

Pin 18: SCKI (Schmitt-trigger input, 5-V tolerant)

(3)

Pins 12, 16–17: BYPAS, BCK/DSDL, LRCK/DSDBCK (in slave mode, Schmitt-trigger input)

(4)

Pins 15–17, 20, and 21: DATA/DSDR, BCK/DSDL, LRCK/DSDBCK (in master mode), OVFR, OVFL

(5)

Single rate, fS = 48 kHz

(6)

Dual rate, fS = 96 kHz

(7)

Quad rate, fS = 192 kHz

6

Submit Documentation Feedback

Copyright © 2001–2007, Texas Instruments Incorporated

Product Folder Link(s): PCM1804