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ELECTRICAL CHARACTERISTICS

PCM1807

SLES147 – SEPTEMBER 2005

All specifications at T

A = 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

16

48

96

kHz

256 fS

4.096

12.288

24.576

System clock frequency

384 fS

6.144

18.432

36.864

MHz

512 fS

8.192

24.576

49.152

INPUT LOGIC

VIH(1)

2

VDD

VIL(1)

0

0.8

Input logic level

VDC

VIH(2)(3)

2

5.5

VIL(2)(3)

0

0.8

IIH(2)

VIN = VDD

±10

IIL(2)

VIN = 0 V

±10

Input logic current

µA

IIH(1)(3)

VIN = VDD

65

100

IIL(1)(3)

VIN = 0 V

±10

OUTPUT LOGIC

VOH(4)

IOUT = –4 mA

2.8

Output logic level

VDC

VOL(4)

IOUT = 4 mA

0.5

DC ACCURACY

Gain mismatch, channel-to-channel

±1

±3 % of FSR

Gain error

±3

±6 % of FSR

DYNAMIC PERFORMANCE (5)

VIN = –0.5 dB, fS = 48 kHz

–93

–87

VIN = –0.5 dB, fS = 96 kHz (6)

–87

THD+N

Total harmonic distortion + noise

dB

VIN = –60 dB, fS = 48 kHz

–37

VIN = –60 dB, fS = 96 kHz (6)

–39

fS = 48 kHz, A-weighted

95

99

Dynamic range

dB

fS = 96 kHz, A-weighted (6)

101

fS = 48 kHz, A-weighted

95

99

S/N

Signal-to-noise ratio

dB

fS = 96 kHz, A-weighted (6)

101

fS = 48 kHz

93

97

Channel separation

dB

fS = 96 kHz (6)

91

ANALOG INPUT

Input voltage

0.6 VCC

Vp-p

Center voltage (VREF)

0.5 VCC

V

Input impedance

60

k

Ω

Antialiasing filter frequency response –3 dB

1.3

MHz

(1)

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

Ω typical pulldown resistor, in slave mode)

(2)

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

(3)

Pins 10–12: MD, MC, MS (Schmitt-trigger input, with 50-k

Ω typical pulldown resistor, 5-V tolerant)

(4)

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

(5)

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.

(6)

fS = 96 kHz, system clock = 256 fS.

3