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ATR2733

ATMEL
Part Number ATR2733
Manufacturer ATMEL
Description Integrated DAB One-chip Front End
Published Jun 9, 2010
Detailed Description Features • • • • • • • • • • • • Highly Integrated DAB Front-end Solution Covering Band III Reception Convenient Interna...
Datasheet PDF File ATR2733 PDF File

ATR2733
ATR2733

Overview
Features • • • • • • • • • • • • Highly Integrated DAB Front-end Solution Covering Band III Reception Convenient Internal Clock Generation, Single Reference Clock Fractional PLL for VHF Fully Integrated VCO High-precision Digitally Tunable Reference Oscillator Integrated High-performance LNA Very Flexible Programming of the AGC Automatically Aligned External Filter Tuning Simple Three-wire Digital Control Interface for Easy Handling Single Low Voltage (3.
3V) Supply Operation Low Current Consumption Due to Several Power-down Options Small SMD Package (QFN 7 mm × 7 mm) www.
DataSheet4U.
com Integrated DAB One-chip Front End ATR2733 Preliminary Applications • Commercial DAB Receivers • DAB Receiver Solutions for Car Radio Applications • Portable DAB Solutions 1.
Description The ATR2733 is a front-end monolithic integrated circuit, manufactured using Atmel’s silicon-germanium BiCMOS process (SiGMOS).
The ATR2733 carries out all functions of RF and IF processing, as well as the clock-signal generation for these functions.
Therefore, there is an integrated fractional PLL, which, equivalent to most of the other functions, can be controlled via an external digital bus.
The RF functions include LNA, down-conversion mixing, amplifying, detection, and gain control.
An external SAW filter is required in the signal path after the RF functions.
Additional amplifiers with detection and control functions are integrated IF functions.
The device offers several tuning support functions, and was created to simplify the design and manufacturing process.
To this end, the number of external components are minimal.
The part fits perfectly to Atmel’s DAB baseband processor ATR2740.
Figure 1-1.
Block Diagram VCO VHF Frac.
PLL RSSI A A D Control Unit PWR Cntl SPI Interface Gain Cntl Vtune Gen.
NOTE: This is a summary document.
The complete document is available under NDA.
For more information, please contact your local Atmel sales office.
4926AS–DAB–04/06 2.
Pin Configuration Figure 2-...


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