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IN9270

Integral
Part Number IN9270
Manufacturer Integral
Description DTMF RECEIVER
Published Jan 17, 2011
Detailed Description TECHNICAL DATA IN9270 DTMF RECEIVER High-Performance Silicon-Gate CMOS The IN9270 is a complete DTMF receiver integrat...
Datasheet PDF File IN9270 PDF File

IN9270
IN9270

Overview
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 amplifier, clock-oscillator and latched 3-state bus interface.
• Complete receiver in an 18-pin package.
• Excellent performance.
• CMOS, single 5 volt operation.
• Minimum board area.
• Central office quali...


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