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AS2507 Datasheet(PDF) 2 Page - ams AG

Part # AS2507
Description  SINGLE CHIP 2-WIRE INTERCOM CMOS INTEGRATED CIRCUIT
PDF  9 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS2507 Datasheet(HTML) 2 Page - ams AG

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Preliminary Data Sheet
AS2507
2/9
July 1998
Pin description
Pin #
DIP 14
Pin #
SO 16
Symbol
Function
77
M1
Microphone Input 1
Differential input for the microphone (electret)
66
M2
Microphone Input 2
Differential input for the microphone (electret)
22
RI
Receive Input
Input for ac-separated receive signal
44
RO
Receive Output to Handset
Output for driving a dynamic earpiece with an impedance from 150
Ω to
300
Ω
14
15
16
VDD
Voltage Drain Drain
Positive Power Supply
99
10
VSS
Voltage Source Source
Negative Power Supply
88
AGND
Analogue Ground
Signal ground for the internal amplifiers
11
12
OSC1
Oscillator Output 1
Output to ceramic resonator 3.58MHz.
12
13
OSC2
Oscillator Input 2
Input for ceramic resonator 3.58MHz.
55
PD
Power Down Input
Active high, i.e. a high level on this pin will power down the analogue
signal path.
10
11
RxD
Receive Data Output
Output of the FSK demodulator
13
14
TxD
Transmit Data Input
Input for the FSK modulator
11
TE
Transmit Enable
Input for enabling transmit data



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