器件名称: U2730B-N
功能描述: L-band Down-converter for DAB Receivers
文件大小: 208.43KB 共17页
简 介:Features
Supply Voltage: 8.5 V RF Frequency Range: 1400 MHz to 1550 MHz IF Frequency Range: 150 MHz to 250 MHz Enhanced IM3 Rejection Overall Gain Control Range: 30 dB Typically DSB Noise Figure: 10 dB Gain-controlled Amplifier and L-band Mixer Power-down Function for the Analog Part On-chip Gain-control Circuitry On-chip VCO, Typical Frequency 1261.568 MHz Internal VCO Can Be Overdriven by an External LO On-chip Frequency Synthesizer – Fixed LO Divider Factor: 2464 – Nine Selectable Reference Divider Factors : 32, 33, 35, 36, 48, 49, 63, 64, 65 – A Reference Oscillator (Can Be Overdriven by an External Reference Signal) – Tristate Phase Detector with Programmable Charge Pump – Programmable Deactivation of Tuning Output – Lock-status Indication – Test Interface
L-band Down-converter for DAB Receivers U2730B-N Preliminary
Electrostatic sensitive device. Observe precautions for handling.
Description
The U2730B-N is a monolithically integrated L-band down-converter circuit fabricated with Atmel’s advanced UHF5S technology. This IC covers all functions of an L-band down-converter in a DAB receiver. The device includes a gain-controlled amplifier, a gain-controlled mixer, an output buffer, a gain control block, a power save function for the analog part, an L-band oscillator and a complete frequency syntheziser unit. The frequency syntheziser block consists of a reference oscillator/buffer, a reference divider, an RF divider, a tri-state phase detector, a loop filter……
