PCM1808-Q1

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SLES265A – MARCH 2011 – REVISED AUGUST 2012

ELECTRICAL CHARACTERISTICS

All specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, master mode, fS = 48 kHz, system clock = 512 fS, 24-bit data, unless

otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Resolution

24

Bits

DATA FORMAT

Audio data interface format

I2S, left-justified

Audio data bit length

24

Bits

Audio data format

MSB-first, 2s complement

fS

Sampling frequency

8

48

96

kHz

256 fS

2.048

12.288

24.576

System clock frequency,

384 fS

3.072

18.432

36.864

MHz

–40°C

≤ TA ≤ 125°C

(1)

512 fS

4.096

24.576

49.152

INPUT LOGIC

VIH

(2)

2

VDD

VIL

(2)

0

0.8

Input logic level,

VDC

–40°C

≤ TA ≤ 125°C

(3)

VIH

(4) (5)

2

5.5

VIL

(4) (5)

0

0.8

IIH

(4)

VIN = VDD

±10

IIL

(4)

VIN = 0 V

±10

Input logic current

at 25°C

65

100

μA

IIH

(2) (5)

VIN = VDD

–40°C

≤ TA ≤ 125°C

65

150

IIL

(2) (5)

VIN = 0 V

±10

OUTPUT LOGIC

at 25°C

2.8

VOH

(6)

IOUT = –4 mA

Output logic level(3)

–40°C

≤ TA ≤ 125°C

2.7

VDC

VOL

(6)

IOUT = 4 mA, –40°C ≤ TA ≤ 125°C

0.5

DC ACCURACY, –40°C

≤ TA ≤ 125°C

Gain mismatch, channel-to-

% of

±1

±3

channel

FSR

% of

Gain error

±3

±6

FSR

DYNAMIC PERFORMANCE (7)

at 25°C

–93

–87

VIN = –0.5 dB, fS = 48 kHz

–40°C

≤ TA ≤ 125°C

–93

–85

Total harmonic distortion +

THD + N

VIN = –0.5 dB, fS = 96 kHz

(8)

–87

dB

noise

VIN = –60 dB, fS = 48 kHz

–37

VIN = –60 dB, fS = 96 kHz

(8)

–39

at 25°C

95

99

fS = 48 kHz, A-weighted

Dynamic range

–40°C

≤ TA ≤ 125°C

93

99

dB

fS = 96 kHz, A-weighted

(8)

101

at 25°C

95

99

fS = 48 kHz, A-weighted

S/N

Signal-to-noise ratio

–40°C

≤ TA ≤ 125°C

93

99

dB

fS = 96 kHz, A-weighted

(8)

101

(1)

384 fs where fs = 96kHz, and 512 where fs = 48 kHz and 96kHz are functionally tested. Other options are specified by design.

(2)

Pins 7, 8: LRCK, BCK (Schmitt-trigger input, with 50-k

Ω typical pulldown resistor, in slave mode)

(3)

Specified by design

(4)

Pin 6: SCKI (Schmitt-trigger input, 5-V tolerant)

(5)

Pins 10–12: MD0, MD1, FMT (Schmitt-trigger input, with 50-k

Ω typical pulldown resistor, 5-V tolerant)

(6)

Pins 7–9: LRCK, BCK (in master mode), DOUT

(7)

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

and 20-kHz LPF in RMS mode.

(8)

fS = 96 kHz, system clock = 256 fS.

Copyright © 2011–2012, Texas Instruments Incorporated

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