PCM2704

,, PCM2705

PCM2706, PCM2707

www.ti.com....................................................................................................................................................... SLES081F – JUNE 2003 – REVISED JANUARY 2009

Terminal Functions (PCM2706PJT/PCM2707PJT)

TERMINAL

I/O

DESCRIPTION

NAME

NO.

AGNDL

26

—

Analog ground for headphone amplifier of L-channel

AGNDR

31

—

Analog ground for headphone amplifier of R-channel

CK

14

O

Clock output for external ROM (PCM2706). Must be left open (PCM2707).

D+

23

I/O

USB differential input/output plus (1)

D–

22

I/O

USB differential input/output minus (1)

DGND

20

—

Digital ground

DOUT

17

O

S/PDIF output/I2S™ data output

DT

15

I/O

Data input/output for external ROM (PCM2706). Must be left open with pullup resistor (PCM2707). (1)

FSEL

9

I

Function select (LOW: I2S DATA output, HIGH: S/PDIF output) (1)

FUNC0

5

I/O

HID key state input (next track), active HIGH (FSEL = 1). I2S LR clock output (FSEL = 0). (2)

FUNC1

19

I/O

HID key state input (previous track), active HIGH (FSEL = 1). I2S bit clock output (FSEL = 0). (2)

FUNC2

18

I/O

HID key state input (stop), active HIGH (FSEL = 1). I2S system clock output (FSEL = 0). (2)

FUNC3

4

I

HID key state input (play/pause), active HIGH (FSEL = 1). I2S data input (FSEL = 0). (2)

HID0/MS

6

I

HID key state input (mute), active HIGH (PCM2706). MS input (PCM2707) (2)

HID1/MC

7

I

HID key state input (volume up), active HIGH (PCM2706). MC input (PCM2707) (2)

HID2/MD

8

I

HID key state input (volume down), active HIGH (PCM2706). MD input (PCM2707) (2)

HOST

3

I

Host detection during self-powered operation (connect to VBUS). Max power select during bus-powered

operation. (LOW: 100 mA, HIGH: 500 mA). (3)

PGND

1

—

Analog ground for DAC, OSC, and PLL

PSEL

16

I

Power source select (LOW: self-power, HIGH: bus-power) (1)

SSPND

11

O

Suspend flag, active LOW (LOW: suspend, HIGH: operational)

TEST

10

I

Test pin. Must be set HIGH (1)

VBUS

24

—

Connect to USB power (VBUS) for bus-powered operation. Connect to VDD for self-powered operation.

VCCL

27

—

Analog power supply for headphone amplifier of L-channel (4)

VCCP

2

—

Analog power supply for DAC, OSC, and PLL (4)

VCCR

30

—

Analog power supply for headphone amplifier of R-channel (4)

VCOM

32

—

Common voltage for DAC (VCCP/2). Connect decoupling capacitor to PGND.

VDD

21

—

Digital power supply (4)

VOUTL

28

O

DAC analog output for L-channel

VOUTR

29

O

DAC analog output for R-channel

XTI

12

I

Crystal oscillator input (1)

XTO

13

O

Crystal oscillator output

ZGND

25

—

Ground for internal regulator

(1)

LV-TTL level

(2)

LV-TTL level with internal pulldown

(3)

LV-TTL level, 5-V tolerant

(4)

Connect decoupling capacitor to GND. Supply 3.3 V for self-powered applications.

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Product Folder Link(s): PCM2704 PCM2705 PCM2706 PCM2707