PCM2706CPJTR datasheet(8/40 Pages) TI1

Part #	PCM2706CPJTR

Description	Stereo Audio DAC with USB Interface, Single-Ended Headphone Output and S/PDIF Output

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Manufacturer	TI1 [Texas Instruments]

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PCM2704C, PCM2705C

PCM2706C, PCM2707C

SBFS036A – AUGUST 2011 – REVISED JULY 2012

www.ti.com

Table 2. Pin Descriptions: PJT Package (PCM2706C/PCM2707C)

TERMINAL

NAME

NO.

I/O

DESCRIPTION

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 (PCM2706C). Must be left open (PCM2707C).

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 (PCM2706C). Must be left open with pull-up resistor (PCM2707C).(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 (PCM2706C). MS input (PCM2707C).(2)

HID1/MC

7

I

HID key state input (volume up), active high (PCM2706C). MC input (PCM2707C).(2)

HID2/MD

8

I

HID key state input (volume down), active high (PCM2706C). MD input (PCM2707C).(2)

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

HOST

3

I

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.

8

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Product Folder Link(s): PCM2704C PCM2705C PCM2706C PCM2707C

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