PinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) -0.3 to +6.0 V VIN DC Input Voltage (Referenced to GND) -0.3 to VCC +0.3 V IIN DC InputCurrent, per Pin 10 mA PD Power Dissipation in Still Air, Plas...
IN9270: PinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) -0.3 to +6.0 V VIN DC Input Voltage (Referenced to GND) -0.3 to VCC +0...
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Symbol |
Parameter |
Value |
Unit |
VCC |
DC Supply Voltage (Referenced to GND) |
-0.3 to +6.0 |
V |
VIN |
DC Input Voltage (Referenced to GND) |
-0.3 to VCC +0.3 |
V |
IIN |
DC InputCurrent, per Pin |
10 |
mA |
PD |
Power Dissipation in Still Air, Plastic DIP** |
500 |
mW |
Tstg |
Storage Temperature |
-65 to +150 |
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 quality.
• Low power consumption.