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STW5094ADLF
(Rev.:2005)

18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

STMicroelectronics 

Pin N°

Name

A6

DX

A5

DR

B5

FS

A4

MCLK

C5

AUXCLK

E4

VCMHP

C3

CAP2

C2

VCCA

D1

GNDA

F3

VCCP

E3

GNDP

D3

GNDCM

B4

VCC

B6

GND

D4

VCCIO

STw5094A

Type

DOT

DI

DI

DI

DI

AO

AI

P

P

P

P

P

P

P

P

Description

Transmit Data output: Data is shifted out on this pin during the assigned

transmit time slots. Elsewhere DX output is in the high impedance state.

In delayed and non-delayed normal frame sync modes, voice data byte

is shifted out from tristate output DX at the MCLK frequency on the

rising edge of MCLK, while in non-delayed reverse frame sync mode

voice data is shifted out on the falling edge of MCLK.

Receive data input: Data is shifted in during the assigned Received time

slots In delayed and non-delayed normal frame sync modes voice data

byte is shifted in at the MCLK frequency on the falling edges of MCLK,

while in non-delayed reverse frame sync mode voice data byte is shifted

in on the rising edge of MCLK.

Frame Sync input for Voice Mode: This signal is a 8 ⁄ 16kHz clock

which defines the start of the transmit and receive frames. Any of three

formats may be used for this signal: non delayed normal mode, delayed

mode, and non delayed reverse mode.

Master Clock Input for Voice Mode. Can also be used as Master Clock in

Tone Only and FM Modes. The allowed clock frequencies are 512 kHz,

1.536 MHz, 2.048 MHz or 2.56 MHz. MCLK is the Voice Data Clock.

Auxiliary Clock Input. Can be used as Master Clock in Tone Only and

FM Modes. Allowed clock frequencies are 512kHz, 1.536MHz,

2.048MHz or 2.56MHz.

VCM Driver Output. Can be used as common mode node for HPL and

HPR outputs.

A capacitor must be connected between this node and Ground.

Power supply input for the analog section. VCC and VCCA can be

directly connected together for low cost applications.

Analog Ground: All analog signals are referenced to this pin. GND and

GNDA can be connected together for low cost applications.

Power supply input for the output drivers.

Power ground. Output drivers are referenced to this pin. GNDP and

GNDA must be connected together.

Analog Ground connection. GNDCM can be connected to GNDA.

Power supply input for the digital section.

Ground for the digital section

Power supply Input for the Digital I ⁄ O pins.

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