HM9270, HM9270B, HM9270D Selling Leads, Datasheet
MFG:DIP Package Cooled:N/A D/C:D/C
HM9270, HM9270B, HM9270D Datasheet download
Part Number: HM9270
MFG: DIP
Package Cooled: N/A
D/C: D/C
HM9270, HM9270B, HM9270D
- Table of contents:
Info of HM9270
Info of HM9270B
Info of HM9270D
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About HM9270
PDF/DataSheet Download
Datasheet: HM9270
File Size: 66894 KB
Manufacturer:
Download : Click here to Download
About HM90-30181
PDF/DataSheet Download
Datasheet: HM90-30181
File Size: 294380 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About HM9270D
PDF/DataSheet Download
Datasheet: HM9270D
File Size: 67584 KB
Manufacturer: EMC [ELAN Microelectronics Corp]
Download : Click here to Download
HM9270D 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.
HM9270D Maximum Ratings
| Parameters | Min. | Max. | Units |
| Power Supply Voltage, VDD - VSS | 6 | V | |
| Voltage on any pin | VSS - 0.3 | VDD+ 0.3 | V |
| Current at any pin | 10 | mA | |
| Operating temperature | -40 | +85 | |
| Storage temperature | -65 | +150 | |
| Package power dissipation | 500 | mW |
HM9270D Features
• Complete receiver in an 18-pin package.
• Excellent performance.
• CMOS, single 5 volt operation.
• Minimum board area.
• Central office quality.
• Low power consumption.
• Power-Down mode (HM9270D only).
• Inhibit-mode (HM9270D only).
• Excellent performance.
• CMOS, single 5 volt operation.
• Minimum board area.
• Central office quality.
• Low power consumption.
• Power-Down mode (HM9270D only).
• Inhibit-mode (HM9270D only).
HM9270D Connection Diagram
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