PCM1680

www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

AGND1

18

–

Analog ground

AGND2

24

–

Analog ground

BCK

7

I

Shift clock input for serial audio data(1)

DATA1

6

I

Serial audio data input for VOUT1 and VOUT2

(1)

DATA2

11

I

Serial audio data input for VOUT3 and VOUT4

(1)

DATA3

12

I

Serial audio data input for VOUT5 and VOUT6

(1)

DATA4

13

I

Serial audio data input for VOUT7 and VOUT8

(1)

DGND

10

–

Digital ground

LRCK

8

I

Left and right clock input. The frequency of this clock is equal to the sampling rate, fS.

(1)

MC/SCL

3

I

Shift clock input for SPI, serial clock input for I2C(1)(2)

MD/SDA

4

I/O

Serial data input for SPI, serial data input/output for I2C(1)(2)(3)

MS/ADR

2

I

Select input for SPI, address input for I2C(1)(4)

MSEL

14

I

I2C/SPI select(1)(4)

SCK

5

I

System clock input. Input frequency is 128, 192, 256, 384, 512, 768, or 1152 fS.

(1)

VCC1

17

–

Analog power supply, 5 V

VCC2

23

–

Analog power supply, 5 V

VCOM

25

–

Common voltage output. This pin should be bypassed with a 10-

µF capacitor to AGND.

VDD

9

–

Digital power supply, 5 V

VOUT1

27

O

Voltage output for audio signal corresponding to L-ch on DATA1

VOUT2

26

O

Voltage output for audio signal corresponding to R-ch on DATA1

VOUT3

22

O

Voltage output for audio signal corresponding to L-ch on DATA2

VOUT4

21

O

Voltage output for audio signal corresponding to R-ch on DATA2

VOUT5

20

O

Voltage output for audio signal corresponding to L-ch on DATA3

VOUT6

19

O

Voltage output for audio signal corresponding to R-ch on DATA3

VOUT7

16

O

Voltage output for audio signal corresponding to L-ch on DATA4

VOUT8

15

O

Voltage output for audio signal corresponding to R-ch on DATA4

ZERO1

1

O

Zero-flag output 1

ZERO2

28

O

Zero-flag output 2

(1)

Schmitt-trigger input.

(2)

Pull-down in SPI mode.

(3)

Open-drain output in I2C mode.

(4)

Pull-down.

Copyright © 2005–2008, Texas Instruments Incorporated

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