HD155111F Overview
The HD155111F was developed for PCN (DCS1800) cellular systems, and integrates most of the functions of a transceiver. The HD155111F incorporates the bias circuit for a RF LNA, a 1st mixer, 1st-IF amplifier, 2nd mixer, AGC amplifier and an IQ quadrature demodulator for the receiver, and an IQ quadrature modulator and offset PLL for the transmitter. Also, on chip are the dividers for the 1st & 2nd local oscillator...
HD155111F Key Features
- Highly integrated RF processing for hand-portables
- Offset PLL architecture reduces TX spurious
- Low current consumption (Vcc = 3 V) RX mode: 42.5 mA Typ (including IFVCO current (2.5 mA Typ)) + LNA transistor current
- Operating supply voltage: Phase parator and TX VCO driver circuits: 2.7 to 5.25 V Other blocks: 2.7 to 3.6 V
- Operating temperature range: -20 to +75°C
- 48 pin SMD Low Profile Quad Flat Package (LQFP): FP-48