ATR2732-PBPW

ATR2732-PBPW Datasheet


The ATR2732 is a front-end monolithic integrated circuit, manufactured using Atmel’s silicon-germanium BiCMOS process SiGMOS . The ATR2732 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.

Part Datasheet
ATR2732-PBPW ATR2732-PBPW ATR2732-PBPW (pdf)
Related Parts Information
ATR2732-PBQW ATR2732-PBQW ATR2732-PBQW
ATR2732-40-EK2 ATR2732-40-EK2 ATR2732-40-EK2
PDF Datasheet Preview
• Highly Integrated DAB Front-end Solution Covering Band III and L-band Reception
• Convenient Internal Clock Generation, Single Reference Clock
• Fractional PLL for VHF
• Fully Integrated VCOs
• High-precision Digitally Tunable Reference Oscillator
• Integrated High-performance LNAs
• 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 9 mm x 9 mm
• Commercial DAB Receivers
• DAB Receiver Solutions for Car Radio Applications
• Portable DAB Solutions

The ATR2732 is a front-end monolithic integrated circuit, manufactured using Atmel’s silicon-germanium BiCMOS process SiGMOS . The ATR2732 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 Block Diagram

Integrated DAB One-chip Front End

ATR2732

L-band PLL

VHF frac. PLL

Gain cntl

Vtune gen.

RSSI

PWR cntl

Control unit

SPI interface

NOTE This is a summary document. The complete document is available under NDA. For more information, please contact your local Atmel sales office.

Pin Configuration

Figure Pinning QFN64

MILINMILIN+ GDMIXL PDFOUTL VDD XTALB XTALA VDI XOUT MISO SCK NSS MOSI SWITCHEN WAGC VA2

VAMIXL VAVCOL

TUNVL GDVCOL LNAVIN+ LNAVL+ LNAVLLNAVIN-

VALNA LNALO+ LNALOAGCRF GNDLNA LNALIN+ LNALINIPINDIO
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

QFN64
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

IFAGCINIF2OIF2O+ IFAGCIN+ AGCIF IF2INIF2IN+ PDFOUTV TNKREFO TNKREFI VTNKREF VFIL1 VFIL2 VFIL3 GDVCOL TUNVV

LNAVO+ LNAVOVABIAS CVREF

IF1O+ IF1O-

VA1 RREFE AGCSAW IF1IN+ IF1INMIXVIN+ MIXVINMIXVO+ MIXVOVAVCOV

Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Pin Description Symbol Function VAMIXL Supply voltage mixer for L-band VAVCOL Supply voltage VCO for L-band TUNVL Tuning voltage for integrated L-band VCO connected to PLL loop filter GDVCOL Ground L-band VCO LNAVIN+ Input for VHF LNVGA differential with pin 8 LNAVL+ Connection for degeneration coil inductance to GNDLNA for VHF LNVGA Connection for degeneration coil inductance to GNDLNA for VHF LNVGA Input for VHF LNVGA differential with pin 5 VALNA Supply voltage for LNVGAs LNALO+ Differential output for L-band LNVGA Differential output for L-band LNVGA AGCRF Connection for time-constant capacitor of RF AGC LNVGAs, external PIN diode GNDLNA Ground for LNVGAs LNALIN+ Differential input for L-band LNVGA Differential input for L-band LNVGA
2 ATR2732 [Preliminary]

ATR2732 [Preliminary]

Table Pin 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
52 53 54

Pin Description Continued

Symbol Function

IPINDIO Current output to external PIN diode for additional attenuation of incoming signal optional

LNAVO+ Differential output of VHF LNVGA and/or mixer for L-band

Differential output of VHF LNVGA and/or mixer for L-band

VABIAS Supply voltage for internal voltage and current bias reference circuits

CVREF Connection for capacitor for filtering internal voltage/current reference circuits capacitor to VABIAS
Ordering Information

Extended Type Number ATR2732-PBQW ATR2732-PBPW

Package QFN64

Package Information

Package VQFN_ 9 x 9_64L Exposed pad x Dimensions in mm Not indicated tolerances

Top 64 1 Pin 1 identification

ATR2732 [Preliminary]

Remarks 9 mm x 9 mm, mm pitch, lead-free 9 mm x 9 mm, mm pitch, lead-free
49 48

Bottom
33 Z 32

Z 10:1

Drawing-No. Issue 1;
16 17
nom.
technical drawings according to DIN specifications

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Datasheet ID: ATR2732-PBPW 519292