PCM2704CDB datasheet(7/40 Pages) TI1

7 / 40 page

PCM2704C, PCM2705C

PCM2706C, PCM2707C

www.ti.com

SBFS036A – AUGUST 2011 – REVISED JULY 2012

Table 1. Pin Descriptions: DB Package (PCM2704C/PCM2705C)

TERMINAL

NAME

NO.

I/O

DESCRIPTION

AGNDL

—

Analog ground for headphone amplifier of L-channel

AGNDR

—

Analog ground for headphone amplifier of R-channel

Clock output for external ROM (PCM2704C). Must be left open (PCM2705C).

D+

I/O

USB differential input/output plus(1)

D–

I/O

USB differential input/output minus(1)

DGND

—

Digital ground

DOUT

S/PDIF output

I/O

Data input/output for external ROM (PCM2704C). Must be left open with pull-up resistor (PCM2705C).(1)

HID0/MS

HID key state input (mute), active high (PCM2704C). MS input (PCM2705C).(2)

HID1/MC

HID key state input (volume up), active high (PCM2704C). MC input (PCM2705C).(2)

HID2/MD

HID key state input (volume down), active high (PCM2704C). MD input (PCM2705C).(2)

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

HOST

operation (low: 100 mA, high: 500 mA).(3)

PGND

—

Analog ground for DAC, OSC, and PLL

PSEL

Power source select (low: self-power, high: bus-power)(1)

SSPND

Suspend flag, active low (low: suspend, high: operational)

TEST0

Test pin. Must be set high(1)

TEST1

Test pin. Must be set high(1)

VBUS

—

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

VCCL

—

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

VCCP

—

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

VCCR

—

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

VCOM

—

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

VDD

—

Digital power supply(4)

VOUTL

DAC analog output for L-channel

VOUTR

DAC analog output for R-channel

XTI

Crystal oscillator input(1)

XTO

Crystal oscillator output

ZGND

—

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): PCM2704C PCM2705C PCM2706C PCM2707C

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