AS2507P datasheet(2/9 Pages) AMSCO

tên linh kiện	AS2507P

Giải thích chi tiết về linh kiện	SINGLE CHIP 2-WIRE INTERCOM CMOS INTEGRATED CIRCUIT

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2 / 9 page

Preliminary Data Sheet

AS2507

2/9

July 1998

Pin description

Pin #

DIP 14

Pin #

SO 16

Symbol

Function

Microphone Input 1

Differential input for the microphone (electret)

Microphone Input 2

Differential input for the microphone (electret)

Receive Input

Input for ac-separated receive signal

Receive Output to Handset

Output for driving a dynamic earpiece with an impedance from 150

Ω to

300

Ω

VDD

Voltage Drain Drain

Positive Power Supply

VSS

Voltage Source Source

Negative Power Supply

AGND

Analogue Ground

Signal ground for the internal amplifiers

OSC1

Oscillator Output 1

Output to ceramic resonator 3.58MHz.

OSC2

Oscillator Input 2

Input for ceramic resonator 3.58MHz.

Power Down Input

Active high, i.e. a high level on this pin will power down the analogue

signal path.

RxD

Receive Data Output

Output of the FSK demodulator

TxD

Transmit Data Input

Input for the FSK modulator

Transmit Enable

Input for enabling transmit data

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