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SA2532 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Sames - VERSATILE SINGLE CHIP TELEPHONE

شماره قطعه SA2532
شرح مفصل VERSATILE SINGLE CHIP TELEPHONE
تولید کننده Sames 
آرم Sames 


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SA2532 شرح
sames
SA2532
SA2532 A/C/U
VERSATILE SINGLE CHIP TELEPHONE
FEATURES
n Speech circuit, LD/MF Dialler and Tone
Ringer on one 28 pin CMOS chip
n Soft clip to avoid harsh distortion
n Line Loss Compensation selectable by
pin option
n Power down mode
n Versatile applications for different PTT
demands
n 31 digit last number redial
n Sliding Cursor protocol with comparison
n 2 Flash keys, 100 ms and 280 ms (option
600 ms)
n Pause key for 3 sec Auto Pause or Wait
Function
n Ring frequency discrimination
n Operating range from 13 to 100 mA
(down to 5 mA with reduced perform-
ance)
n Low noise (max. -72dBmp)
n Real or Complex impedance on chip pro-
grammable
n LD/MF switchable dialling
n On chip MF filter (CEPT CS 203 compat-
ible)
n 3-tone melody generator with selectable
repetition rates
GENERAL DESCRIPTION
The SA2532 is a CMOS integrated circuit that
contains all the functions needed to form a
high performance electronic telephone.
The device incorporates LD/MF dialling,
melody generation, ring frequency discrimi-
nation and a high quality speech circuit.
A RAM is on chip for a 31 digit last number
redial. The sliding cursor procedure makes
Last Number Redial easy behind a PABX.
The versatility of the circuit is provided by on
chip programmability and a few external com-
ponents. This allows easy adaption to differ-
ent PTT requirements without changing the
PCB of the telephone.
PACKAGE
Available in 28 pin DIP and SOIC
LS
RO2
RO1
VDD
AGND
STB
CI
MO
LLC
HS DP
OSC
RR
C4
C3
1 28
SA2532
14 15
RI
LI
VSS
CS
M2
M1
MODE
FCI
R1
R2
R3
R4
C1
C2
sames
4153
DR-00975
PDS039-SA2532-001 Rev. C
1/22
1/22
23-10-1995

قانون اساسیصفحه 22
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