STW5094 datasheet(4/37 Pages) STMICROELECTRONICS

4 / 37 page

STw5094

4/37

PIN FUNCTION

N°

Name

Type

Description

MIC1P

Positive high impedance input to transmit preamplifier for microphone 1 connection.

MIC1N

Negative high impedance input to transmit preamplifier for microphone 1 connection.

MIC2P

Positive high impedance input to transmit preamplifier for microphone 2 connection.

MIC2N

Negative high impedance input to transmit preamplifier for microphone 2 connection.

MIC3

High impedance single ended input to transmit preamplifier for line input connection.

Only 0dB gain is allowed.

MBIAS

Microphone Biasing Switch.

FML

Auxiliary analog audio Left channel input.

FMR

Auxiliary analog audio Right channel input.

F2,F1

LSP, LSN

Receive analog amplifier complementary outputs. This differential output can drive

50nF (with series resistor) or directly an earpiece transductor of 8

Ω. The signal at this

output can be: the sum of the Receive Speech signal from DR, the Internal Tone

Generator, and the Sidetone signal, or the sum of the Audio Left channel and the

Internal Tone Generator, or can come from FML input.

HPL

Audio headphone amplifier Left channel output. This output can drive 50nF (with

series resistor) or directly an earpiece transductor of 30

Ω. The signal at this output

can be the sum of Audio Left channel and Internal Tone Generator, or the sum of

Receive Speech signal from DR, Internal Tone Generator, Sidetone signal, or can

come from FML input.

HPR

Audio headphone amplifier Right channel output. This output can drive 50nF (with

series resistor) or directly an earpiece transductor of 30

Ω. The signal at this output

can be the sum of Audio Right channel and Internal Tone Generator, or the sum of

Receive Speech signal from DR, Internal Tone Generator, Sidetone signal, or can

come from FMR input.

REMOUT

Remocon function digital output.

REMIN

Remocon function input. A high level at this pin is detected as a non pressed key,

while a low level is detected as a pressed key.

Pulse width modulated buzzer driver output.

SCL

I2C-bus interface serial clock input. SCL is asynchronous with the other system

clocks.

SDA

DIO

I2C-bus interface serial data input-output.

LRCK

Left

⁄ Right clock for Audio interface input.

SCK

Audio interface Clock input.

SDI

Audio interface Data input.

OCK

Master Clock Input for Audio Mode. Can also be used as Master Clock in Tone Only

and FM Modes.

DOT

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.

STW5094 数据表(PDF) 4 Page - STMicroelectronics

STW5094 数据表(HTML) 4 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

数据表下载