HD155121F Description
The HD155121F is a RF transceiver IC for GSM and PCN dual band cellular systems, and integrates most of the low power silicon functions of a transceiver. The HD155121F incorporates two bias circuits for RF LNAs, two first mixers, a second mixer, a programmable gain amplifier, and an IQ demodulator for the receiver, and an IQ modulator and offset PLL for the transmitter. Also, on chip are dividers for the phase...
HD155121F Key Features
- Highly integrated RF processing for hand-portables
- Operating supply voltage VCC : 2.7 to 3.6 V Phase parator and TXVCO driver circuit : 2.7 to 5.25 V
- Current consumption Rx mode (GSM) : 53 mA + LNA current Rx mode (PCN) : 52 mA + LNA current Tx mode (GSM) : 36 mA
- Operating temperature : -20 to +75 degree
- LQFP 48pin SMD (Low Profile Quad Flat Package)
- Wide operating frequencies Rx RF GSM : 925
- 960 MHz PCN : 1805
- 1880 MHz 1st IF : 225 MHz 2nd IF : 45 MHz Tx RF GSM : 880
- 915 MHz PCN : 1710
- 1785 MHz IF GSM : 270 MHz PCN : 135 MHz