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HM9270C Datasheet, Equivalent, DTMF RECEIVER.DTMF RECEIVER DTMF RECEIVER |
| Part | HM9270C |
|---|---|
| Description | DTMF RECEIVER |
| Feature | HM 9270C/D DTMF RECEIVER
General Description
The HM 9270C/D 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 dial-tone rejection. Digital counting techniques are employed in the decoder to detect and decode all 16 DTMF tonepairs 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.
Features
• • • • • • • • Complete receiver in an 18-pin package. E. |
| Manufacture | ELAN Microelectronics Corp |
| Datasheet |
| Part | HM9270C |
|---|---|
| Description | DTMF RECEIVER |
| Feature | HM 9270C/D DTMF RECEIVER
General Description
The HM 9270C/D 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 dial-tone rejection. Digital counting techniques are employed in the decoder to detect and decode all 16 DTMF tonepairs 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.
Features
• • • • • • • • Complete receiver in an 18-pin package. E. |
| Manufacture | ELAN Microelectronics Corp |
| Datasheet |
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