PCM1738ESLASH2K datasheet(6/47 Pages) TI2

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PCM1738

SBAS174C – FEBRUARY 2002 – REVISED FEBRUARY 2007

Table 1. TERMINAL FUNCTIONS

TERMINAL

TYPE

DESCRIPTION

NAME

NO.

AGND1

—

Analog ground 1

AGND2

—

Analog ground 2

Chip select and latch for mode control (1)

BCK

Bit-clock input. Connected to GND for DSD mode (1)

DATA

Serial audio data input for normal operation. L-channel audio data input for external DF and DSD modes (1)

DGND

—

Digital ground

IOUTL+

OUT

L-channel analog current output +

IOUTL–

OUT

L-channel analog current output –

IOUTR+

OUT

R-channel analog current output +

IOUTR–

OUT

R-channel analog current output –

IREF

—

Output current reference bias pin. Connect 16-k

Ω resistor to GND.

Left/right clock (fS) input for normal operation. WDCK clock input in external DF mode. Connected to GND in

LRCK

DSD mode (1)

Shift clock for mode control (1)

MDI

Serial data input for mode control (1)

MDO

OUT

Serial data output for mode control

Analog output mute control for normal operation. R-channel audio data input for external DF and DSD modes

MUTE

(1)

RST

Reset(1)

SCKI

System-clock input for normal operation. BCK (64fS) clock input for DSD mode (1)

SCKO

OUT

System clock output

VCC1

—

Analog power supply 1, 5-V

VCC2

—

Analog power supply 2, 5-V

VCC3

—

Analog power supply 3, 5-V

VCOM1

—

Internal bias decoupling 1

VCOM2

—

Internal bias decoupling 2 (common voltage for I/V)

VCOM3

—

Internal bias decoupling 3

VDD

—

Digital supply, 3.3 V

ZEROL

OUT

Zero flag for L-channel

ZEROR

OUT

Zero flag for R-channel

(1)

Schmitt-trigger input, 5-V tolerant.

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