Sockets & Adapters ADAPTER PSOP44/D44
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| Product : | Socker Adapter |

| SYMBOL | PARAMETER | RATING | UNITS |
| VCC | Single supply voltage | V | |
| VIN | Voltage applied to any other pin | V | |
| TSTG | Storage temperature range | °C | |
| TA | Operating ambient temperature range SA639 | °C |
The SA638 is an IF receiver chip which serves the dual mode functionality required by the IS54 standards for North American cellular telephones. SA638 provides for both the analog FM (AMPS mode) and DQPSK (TDMA digital mode) IF receive functions in a monolithic BiCMOS Integrated Circuit housed in a compact SSOP24 plastic package.