| Part Number | AF121 |
| Manufacturer | National Semiconductor |
| Title | DTMF Bandpass Filters |
| Description | The AF121 and AF122 are 6th order elliptic bandpass filters designed for use with digital DTMF detectors. These filters are compatible with tone d... |
| Features |
• Compatible with Rockwell CRC8030 and Mostek MK5102 • Gain o±0.5 dB • Ripple 2 dB peak to peak • Input Impedance 175 kn min • Power Supply ±5V to ±18V Connection Diagram Dual-In-Line Package INPUT VTOP VIEW GND Unspecified pins are f... |
| Datasheet |
 AF121 Datasheet
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