DatasheetsPDF.com

ATR2730

ATMEL Corporation
Part Number ATR2730
Manufacturer ATMEL Corporation
Description L-band Down-converter
Published Jan 22, 2009
Detailed Description Features • • • • • • • • • • • • www.DataSheet4U.com Supply Voltage: 8.5V RF Frequency Range: 1400 MHz to 1550 MHz IF Fr...
Datasheet PDF File ATR2730 PDF File

ATR2730
ATR2730

Overview
Features • • • • • • • • • • • • www.
DataSheet4U.
com Supply Voltage: 8.
5V 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) – Tri-state Phase Detector with Programmable Charge Pump – Programmable Deactivation of Tuning Output – Lock-status Indication – Test Interface L-band Down-converter for DAB Receivers ATR2730 Preliminary 1.
Description The ATR2730 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 synthesizer unit.
The frequency synthesizer block consists of a reference oscillator/buffer, a reference divider, an RF divider, a tri-state phase detector, a loop filter amplifier, a lock detector, a programmable charge pump, a test interface, and a control interface.
4903C–DAB–03/07 Figure 1-1.
Block Diagram TH IF 19 www.
DataSheet4U.
com 17 VCC1 VCC3 VCC4 VCC2 3 20 28 9 GND 6, 7, 8, 21, 22, 23, 24 AGC 18 Internal 5V supply voltage for frequency synthesizer Voltage stabilizer 14 ∆U Analog part 26 25 5 VCO 4 Power save (analog part) Reference counter : Nref RF counter : 2464 Tristate phase detector Bandgap Lock detector PLCK RF NRF 20 kΩ 12 TANK VREF CD Charge pump 200/300 13 Lock...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)