PCM2704,PCM2705

PCM2706,PCM2707

SLES081A − JUNE 2003 – REVISED MAY 2004

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6

Terminal Functions (PCM2704DB/PCM2705DB)

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

AGNDL

12

—

Analog ground for headphone amplifier of L-channel

AGNDR

17

—

Analog ground for headphone amplifier of R-channel

CK

2

O

Clock output for external ROM (PCM2704). Must be left open (PCM2705).

D+

9

I/O

USB differential input/output plus (1)

D–

8

I/O

USB differential input/output minus (1)

DGND

6

—

Digital ground

DOUT

5

O

S/PDIF output

DT

3

I/O

Data input/output for external ROM(PCM 2704). Must be left open with pullup resistor (PCM2705). (1)

HID0/MS

22

I

HID key state input (mute), active HIGH (PCM2704). MS input (PCM2705). (3)

HID1/MC

23

I

HID key state input (volume up), active HIGH (PCM2704). MC input (PCM2705). (3)

HID2/MD

24

I

HID key state input (volume down), active HIGH (PCM2704). MD input (PCM2705). (3)

HOST

21

I

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

operation (LOW: 100 mA, HIGH: 500 mA). (2)

PGND

19

—

Analog ground for DAC, OSC and PLL

PSEL

4

I

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

SSPND

27

O

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

TEST0

26

I

Test pin. Must be set HIGH (1)

TEST1

25

I

Test pin. Must be set HIGH (1)

VBUS

10

—

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

VCCL

13

—

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

VCCP

20

—

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

VCCR

16

—

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

VCOM

18

—

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

VDD

7

—

Digital power supply (4)

VOUTL

14

O

DAC analog output for L-channel

VOUTR

15

O

DAC analog output for R-channel

XTI

28

I

Crystal oscillator input (1)

XTO

1

O

Crystal oscillator output

ZGND

11

—

Ground for internal regulator

(1) LV-TTL level

(2) LV-TTL level, 5-V tolerant

(3) LV-TTL level with internal pulldown

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