IL9270N Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – DTMF signal receiver

IL9270N
DTMF signal receiver
(analog HM9270)
IC IL9270N is (DTMF) signal two-channel receiver-decoder (code 2 from 8).IÑ is fabricated
on CÌÎS technology and containes bandpass filters on switched capacitors. IC checks
length of incoming twochannel signal dispatches and pauses between them. Information
output as 4-digit binary code.IC clocking is carried out from quartz(-crystal) resonator with
frequency Fc= 3,579545 ÌHz.
MAIN CHARACTERISTICS
demodulates all 16 standard DTMF signals
Low consumed capacitance: 15 mW
One power source: 5 V+-5%
quarts generator with frequency 3,58 mHz is used
three state outputs
probability of mistaken decoding is 1/10000
Package - plastic 18-connection DIP (type 2104.18-À)
APPLICATION
* Àutomatic Òelephone Station
* call alert paging
* remote control systems
* credit card systems
* button telephone systems
* answering mashine
* domestic auto systems
Arrangement and purpose of outputs
Pin
01
02
03
04
05,06
07,08
09
10
11·14
15
16
17
18
Symbol
IN+
IN-
CS
Vref
NC
OSC1,2
GND
TOE
Q1-Q4
StD
ESt
St/GT
Vcc
Purpose
non inverting input ÎA
inverting input ÎA
operational amplifier outputÎA)
reference voltage output (Vcc/2)
unconnected
tact input/output.
general
input of output inable
three state data output
control outputèÿ
output of early control
control input/output
power +5 V
Korzhenevskogo 12, Minsk, 220064, Republic of
Belarus
Fax: [phone],
Phone: [phone],
277 69 16
E-mail: [e-mail]
URL: www.bms.by