Part number:
IN9270
Manufacturer:
Integral
File Size:
394.32 KB
Description:
Dtmf receiver.
Datasheet Details
Part number:
IN9270
Manufacturer:
Integral
File Size:
394.32 KB
Description:
Dtmf receiver.
IN9270, DTMF RECEIVER
NAME ESt PIN 16 DESCRIPTION Early steering output.
Presents a logic high immediately when the digital algorithm detects a recognizable tone-pair (signal condition).
Any momentary loss of signal condition will cause ESt to return to a logic low.
Gain Select.
Gives access to output of front-end diff
TECHNICAL DATA IN9270 DTMF RECEIVER High-Performance Silicon-Gate CMOS The IN9270 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions.
The filter section uses switched capacitor techniques for high- and low-group filters and dialtone rejection.
Digital counting techniques are employed in the decoder to detect and decode all 16 DTMF tone-pairs into a 4-bit code.
External component count is minimized by on-chip provision of a differential input amplifi
IN9270 Features
* Test Conditions VOUT
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