ATR2732N1-PBQW Atmel, ATR2732N1-PBQW Datasheet

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ATR2732N1-PBQW

Manufacturer Part Number
ATR2732N1-PBQW
Description
IC DAB ONE-CHIP FRONT-END 64-QFN
Manufacturer
Atmel
Datasheet

Specifications of ATR2732N1-PBQW

Frequency
24.576MHz
Sensitivity
-98dBm
Applications
Broadcast, Consoles, Receivers
Current - Receiving
80mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Features
SPI digital interface
Voltage - Supply
3 V ~ 3.5 V
Operating Temperature
-40°C ~ 90°C
Package / Case
64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Data Rate - Maximum
-
Modulation Or Protocol
-
Features
Applications
1. Description
The ATR2732N1 is a front-end monolithic integrated circuit, manufactured using
Atmel
The ATR2732N1 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, detec-
tion, 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.
ATR2732N1 is a Special Version of ATR2732 Recommended for Automotive
Applications
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 × 9 mm)
Commercial DAB Receivers
DAB Receiver Solutions for Car Radio Applications
Portable DAB Solutions
®
’s silicon-germanium BiCMOS process (SiGMOS).
Integrated DAB
One-chip Front
End
ATR2732N1
Summary
NOTE: This is a summary document.
The complete document is available
under NDA. For more information,
please contact your local Atmel sales
office.
9130AS–DAB–04/08

Related parts for ATR2732N1-PBQW

ATR2732N1-PBQW Summary of contents

Page 1

... Atmel ’s silicon-germanium BiCMOS process (SiGMOS). The ATR2732N1 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, detec- tion, and gain control ...

Page 2

... Figure 1-1. Block Diagram 2. Pin Configuration Figure 2-1. Pinning QFN64 VAMIXL VAVCOL TUNVL GDVCOL LNAVIN+ LNAVL+ LNAVL- LNAVIN- VALNA LNALO+ LNALO- AGCRF GNDLNA LNALIN+ LNALIN- IPINDIO ATR2732N1 2 Gain cntl Vtune gen. L-band VCO PLL VHF VCO frac. PLL QFN64 PWR RSSI ...

Page 3

... Reference-tank connection for to generate the tuning voltages for the external VHF filters (varactors) 40 TNKREFO Reference-tank connection for to generate the tuning voltages for the external VHF filters (varactors) 41 PFDOUTV Output-of-phase comparator for VHF VCO (connected to PLL loop filter) 9130AS–DAB–04/08 ATR2732N1 3 ...

Page 4

... Connection for reference clock crystal 60 VDD Supply for digital circuits 61 PFDOUTL Output of phase comparator for VCO for L-band (connected to PLL loop filter) 62 GDMIXL Ground (L-band mixer) 63 MILIN+ (Differential) Input of L-band mixer – 64 MILIN (Differential) Input of L-band mixer Paddle GND Ground ATR2732N1 4 9130AS–DAB–04/08 ...

Page 5

... Functional Description The ATR2732N1 front-end IC was developed as a tuner IC for DAB reception. It was designed for operation in L-band (1452 MHz to 1492 MHz) and VHF BIII (167 MHz to 240 MHz). The front end contains gain-controlled LNAs, an L-band mixer with a corresponding PLL, and a VHF-band mixer with a fractional PLL ...

Page 6

... Figure 3-1. 3.2 AGC in General There are three AGCs in the ATR2732N1, one for the RF signals (around the LNAs) (1) and (3), one for the very beginning of the IF path (mainly VHF mixer), and one for the IF amplifiers (5) down to the output to baseband (7). In these AGCs, the output signals of the relevant blocks are amplified, weakly band-pass fil- tered, rectified, and, finally, low-pass filtered ...

Page 7

... RSSI Measurement The ATR2732N1 offers the option of getting information about the field strength. This is not an absolute real-field-strength value, but an indication of in which range the field strength is avail- able. This information can be obtained from the 8 low bits of the status register. ...

Page 8

... IF frequency of 38.912 MHz for VHF or converted L-band signal is done by an additional on-chip VCO using an internal fractional-N PLL. Due to the digital tuning option of the reference frequency, the ATR2732N1 is able to support the single reference clock design if the baseband can support such a feature (as the ATR2740 does) ...

Page 9

... There are 16 registers. Fourteen of them are used to control the ATR2732N1. The two others, registers 15 and 16, are Test Mode Registers. All these registers need to be reset by writing “0” ...

Page 10

... Storage temperature Maximum RF input power VHF Maximum RF input power L-band Notes: 1. The part may not survive all maximums applied simultaneously! 5. Thermal Resistance Parameters Junction, case 6. Operating Range Parameters Supply voltage Ambient temperature ATR2732N1 10 Symbol Value V 4 –40 to +100 c T –40 to +150 ...

Page 11

... Electrical Characteristics Test conditions (if not otherwise specified): V No. Parameters Test Conditions 1 Power Supply Supply voltage of front 1.1 end ATR2732N1 Supply voltage of 1.2 baseband processor 1.3 Leakage current, all off 2 Power Control 2.1 Power on/off delay 2.2 Power off/on delay Supply current L-band 2 ...

Page 12

... L-band Operation 9.1 Frequency range 8 dB SNR at IF output 9.4 Sensitivity to baseband, measured with sample application Maximum input power 9.5 level *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter ATR2732N1 12 = +3.3V +25°C, 50Ω input match CC amb Pin Symbol 46 Rfin f Rfin Min ...

Page 13

... Ordering Information Extended Type Number ATR2732N1-PBQW ATR2732N1-PBPW 9. Package Information Package: VQFN_ 9 x 9_64L Exposed pad 5.8 x 5.8 Dimensions in mm Not indicated tolerances ±0.05 Top 64 1 Pin 1 identification 16 Drawing-No.: 6.543-5119.01-4 Issue: 1; 31.05.05 9130AS–DAB–04/08 Package Remarks 9 mm × 9 mm, 0.5 mm pitch, lead-free QFN64 9 mm × ...

Page 14

... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...

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