PCM1681 datasheet(3/43 Pages) TI

3 / 43 page

ELECTRICAL CHARACTERISTICS

PCM1681

PCM1681-Q1

www.ti.com.................................................................................................................................................... SLES211B – FEBRUARY 2008 – REVISED JUNE 2008

All specifications at VCC = 5.0 V, VDD = 3.3 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data, narrow o/s mode, unless

otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RESOLUTION

Bits

DATA FORMAT

Right-justified, I2S,

Audio data interface format

left-justified, TDM

16-, 18-, 20-, or 24-bits,

Audio data bit length

selectable

Audio data format

MSB-first, 2s complement

Sampling frequency

200

kHz

128, 192, 256, 384,

System clock frequency

512, 768, 1152 fS

DIGITAL INPUT/OUTPUT

Logic family

TTL compatible

VIH

(1)

2.0

VDD

VIL

(1)

0.8

Input logic level

VDC

VIH

(2)

2.0

5.5

VIL

(2)

0.8

IIH

(1) (2)

VIN = VDD

Input logic current

µA

IIL

(1) (2)

VIN = 0 V

–10

VOH

(3)

IOH = –1 mA

2.4

Output logic level

VDC

VOL

(3) (4)

IOL = 1 mA

0.4

DYNAMIC PERFORMANCE(5)

VOUT = 0 dB, fS = 48 kHz

0.002

0.008

VOUT = 0 dB, fS = 96 kHz, system clock = 256 fS

0.002

THD+N

Total harmonic distortion + noise

VOUT = 0 dB, fS = 192 kHz,

0.002

system clock = 128 fS

EIAJ, A-weighted, fS = 48 kHz

100

105

Dynamic range

A-weighted, fS = 96 kHz, system clock = 256 fS

105

A-weighted, fS = 192 kHz, system clock = 128 fS

105

EIAJ, A-weighted, fS = 48 kHz

100

105

SNR

Signal-to-noise ratio

A-weighted, fS = 96 kHz, system clock = 256 fS

105

A-weighted, fS = 192 kHz, system clock = 128 fS

105

fS = 48 kHz

102

Channel separation

fS = 96 kHz, system clock = 256 fS

102

fS = 192 kHz, system clock = 128 fS

102

DC ACCURACY

Gain error

±2.0

±6

% of FSR

Gain mismatch,

±2.0

±6

% of FSR

channel-to-channel

Bipolar zero error

VOUT = 0.486 VCC at BPZ input

±30

±80

(1)

Pins 1, 14: ZR1/ZR1/FMT0 (input mode), MSEL

(2)

Pins 2, 3, 4, 5, 6, 7, 8, 11, 12, 13: MS/ADR/FMT1, MC/SCL/DEMP, MD/SDA/MUTE (input mode), SCK, DATA1, BCK, LRCK, DATA2,

DATA3, DATA4

(3)

Pins 1, 28: ZR1/ZR1/FMT0 (output mode), ZR2

(4)

Pin 4: MD/SDA/MUTE (output mode)

(5)

Analog performance characteristics are measured using the System Two™ Cascade audio measurement system by Audio Precision™,

fIN = 1 kHz, average mode, with 20-kHz LPF and 400-Hz HPF.

Submit Documentation Feedback

Product Folder Link(s): PCM1681 PCM1681-Q1

PCM1681 Datasheet(PDF) 3 Page - Texas Instruments

PCM1681 Datasheet(HTML) 3 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

Datasheet Download

Link URL