Linear Technology LTC1957-2
the LTC1957-2 except that one output (VPCA) is provided. The LTC1957-1 can be used to drive a single RF or dual channel module with integral multiplexer. This part is available in an 8-pin MSOP package.| Part No. | LTC1957-2 |
|---|---|
| Datasheet | LTC1957-2 Download |
| Manufacturer |  Linear Technology |
| Description | Single/Dual Band RF Power Controllers |
| Buy | Stock & Price |
FEATURES
s s DESCRIPTIO s s s s s s s s s s s s s s s Dual Band RF Power Amplifier Control (LTC1957-2) Internal Schottky Diode Detector with Improved Dynamic Range vs the LTC1757A Wide Input Frequency Range: 850MHz to 2GHz Autozero Loop Cancels Offset Errors and Temperature Dependent Offsets Wide VIN Range: 2.7V to 6V Allows Direct Connection to Battery RF Output Power Set by External DAC Fast Acquire After Transmit Enable Internal Frequency Compensation Rail-to-Rail Power Control Outputs Power Control Signal Overvoltage Protection Low Operating Current: 1mA Very Low Shutdown Current: < 1µA Available in a 8-Pin MSOP Package (LTC1957-1) and 10-Pin MSOP (LTC1957-2) Pin Compatible with the LTC1757A-X Improved Start Voltage Accuracy and Range Improved PCTL Input Filtering The LTC®1957-2 is a dual band RF power controller for power amplifiers operating in the 850MHz to 2GHz range. The input voltage range is optimized for operation from a single lithium-ion cell or 3 × NiMH. Several functions required for RF power control and protection are integrated in one small 10-pin MSOP package, thereby minimizing PCB area.
