ATR2731-ILQY

ATR2731-ILQY Datasheet

ATR2731

Part	Datasheet
ATR2731-ILQY	ATR2731-ILQY (pdf)

Related Parts	Information
ATR2731-ILSY	ATR2731-ILSY

PDF Datasheet Preview
• 8.5V Supply Voltage • Voltage Regulator for Stable Operating Conditions • Microprocessor-controlled Via a Simple Two-wire Bus • Two Selectable Addresses • Gain-controlled RF Amplifier with Two Inputs, Selectable Via a Simple Two-wire Bus Control • Balanced RF Amplifier Inputs • Gain-controlled RF Mixer • Four-pin Voltage-controlled Oscillator • SAW Filter Driver With Differential Low-impedance Output • AGC Voltage Generation for RF Section, Available at Charge-pump Output Can Also Be Used to Control a PIN Diode Attenuator • Gain-controlled IF Amplifier • Balanced IF Amplifier Inputs • Selectable Gain-controlled IF Mixer • Single-ended IF Output • AGC Voltage Generation for IF Section, Available at Charge-pump Output • Separate Differential Input for the IF AGC Block • All AGC Time Constants are Adjustable • AGC Thresholds Programmable Via a Simple Two-wire Bus • Three AGC Charge Pump Currents Selectable Zero, Low, High • Reference Oscillator • Programmable 9-bit Reference Divider • Programmable 15-bit Counter 1:2048 to 1:32767 Effectively • Tri-state Phase Detector with Programmable Charge Pump • Superior Phase-noise Performance • Programmable Deactivation of Tuning Output • Three Switching Outputs Open Collector • Three D/A Converters Resolution 8 Bits • Lock Status Indication Open Collector DAB One-chip Front End ATR2731 The ATR2731 is a monolithically integrated Digital Audio Broadcasting one-chip front-end circuit manufactured using Atmel’s advanced UHF5S technology. Its functionality covers a gain-controlled RF amplifier with two selectable RF inputs, a gain-controlled RF mixer, a VCO which provides the LO signal for the RF mixers, either directly or after passing a frequency divider, a SAW filter driver, an AGC block for the RF section, a gain-controlled IF amplifier, an IF mixer which can also be bypassed, an AGC block for the IF section, and a fractional-N frequency synthesizer. The frequency synthesizer controls the VCO to synthesize frequencies in the range of 70 MHz to 500 MHz in a 16-kHz raster within certain limits, the reference divider factor is fully programmable. The lock status of the phase detector is indicated at a special output pin three switching outputs can be addressed. A reference signal, generated by an on-chip reference oscillator, is available at an output pin. This reference signal is also used to generate the LO signal for the IF mixer, either by doubling the frequency or by using the reference frequency itself. Three D/A converters at a resolution of 8 bits provide a digitally controllable output voltage. The thresholds inside the AGC blocks can be digitally controlled by means of on-chip 4-bit D/A converters. All functions of this IC are controlled via a simple two-wire bus. 2 ATR2731 ATR2731 Figure Block Diagram SAW1 SAW2 IFIN1 IFIN2 CPIF 16 CPRF th2 12 RFA1 13 RFA2 14 RFB1 15 RFB2 32 C1VCO 33 B2VCO 34 B1VCO 33 C2VCO th1 VAGC VAGC ÷1/÷2 x1/x2 4-bit latch 4-bit latch 4-bit latch 4-bit latch 26 IF AGCIN2 27 IF AGCIN1 21 SLI 22 WAGC 29 IFOUT 20, 25, 38 VS 10, 11, 17, 30, 31, 36, 37 GND 42 OSCI 43 OSCO 5 FREF Reference counter Fractional-N control Programmable 13-bit counter ÷ N/N+1 Ordering Information Extended Type Number Package SSO44 Package Information Package SSO44 Dimensions in mm ATR2731 Remarks Tube, Pb-free Taped and reeled, Pb-free technical drawings according to DIN specifications Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel 44 1355-803-000 Fax 44 1355-242-743 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel 49 71-31-67-0 Fax 49 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel 33 4-76-58-30-00 Fax 33 4-76-58-34-80 Literature Requests 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 CONDITIONS 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. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. Atmel Corporation All rights reserved. logo and combinations thereof, Everywhere You and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Printed on recycled paper.

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• 8.5V Supply Voltage
• Voltage Regulator for Stable Operating Conditions
• Microprocessor-controlled Via a Simple Two-wire Bus
• Two Selectable Addresses
• Gain-controlled RF Amplifier with Two Inputs, Selectable Via a Simple Two-wire Bus

Control
• Balanced RF Amplifier Inputs
• Gain-controlled RF Mixer
• Four-pin Voltage-controlled Oscillator
• SAW Filter Driver With Differential Low-impedance Output
• AGC Voltage Generation for RF Section, Available at Charge-pump Output Can Also

Be Used to Control a PIN Diode Attenuator
• Gain-controlled IF Amplifier
• Balanced IF Amplifier Inputs
• Selectable Gain-controlled IF Mixer
• Single-ended IF Output
• AGC Voltage Generation for IF Section, Available at Charge-pump Output
• Separate Differential Input for the IF AGC Block
• All AGC Time Constants are Adjustable
• AGC Thresholds Programmable Via a Simple Two-wire Bus
• Three AGC Charge Pump Currents Selectable Zero, Low, High
• Reference Oscillator
• Programmable 9-bit Reference Divider
• Programmable 15-bit Counter 1:2048 to 1:32767 Effectively
• Tri-state Phase Detector with Programmable Charge Pump
• Superior Phase-noise Performance
• Programmable Deactivation of Tuning Output
• Three Switching Outputs Open Collector
• Three D/A Converters Resolution 8 Bits
• Lock Status Indication Open Collector

DAB One-chip Front End

ATR2731

The ATR2731 is a monolithically integrated Digital Audio Broadcasting one-chip front-end circuit manufactured using Atmel’s advanced UHF5S technology. Its functionality covers a gain-controlled RF amplifier with two selectable RF inputs, a gain-controlled RF mixer, a VCO which provides the LO signal for the RF mixers, either directly or after passing a frequency divider, a SAW filter driver, an AGC block for the RF section, a gain-controlled IF amplifier, an IF mixer which can also be bypassed, an AGC block for the IF section, and a fractional-N frequency synthesizer. The frequency synthesizer controls the VCO to synthesize frequencies in the range of 70 MHz to 500 MHz in a 16-kHz raster within certain limits, the reference divider factor is fully programmable.

The lock status of the phase detector is indicated at a special output pin three switching outputs can be addressed. A reference signal, generated by an on-chip reference oscillator, is available at an output pin. This reference signal is also used to generate the LO signal for the IF mixer, either by doubling the frequency or by using the reference frequency itself. Three D/A converters at a resolution of 8 bits provide a digitally controllable output voltage. The thresholds inside the AGC blocks can be digitally controlled by means of on-chip 4-bit D/A converters. All functions of this IC are controlled via a simple two-wire bus.
2 ATR2731

ATR2731

Figure Block Diagram

SAW1 SAW2

IFIN1 IFIN2 CPIF
16 CPRF
th2 12 RFA1 13 RFA2 14 RFB1 15 RFB2
32 C1VCO
33 B2VCO
34 B1VCO
33 C2VCO
th1 VAGC

VAGC
÷1/÷2
x1/x2
4-bit latch
4-bit latch
4-bit latch
4-bit latch
26 IF AGCIN2
27 IF

AGCIN1
21 SLI
22 WAGC
29 IFOUT
20, 25, 38 VS
10, 11, 17, 30, 31, 36, 37 GND
42 OSCI
43 OSCO
5 FREF

Reference counter

Fractional-N control

Programmable 13-bit counter
÷ N/N+1
Ordering Information

Extended Type Number

Package SSO44

Package Information

Package SSO44

Dimensions in mm

ATR2731

Remarks Tube, Pb-free Taped and reeled, Pb-free
technical drawings according to DIN specifications

Atmel Corporation
2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600

Regional Headquarters

Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500

Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369

Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581

Atmel Operations

Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314

Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314

La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60

ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01
1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759

Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel 44 1355-803-000 Fax 44 1355-242-743

RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel 49 71-31-67-0 Fax 49 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759

Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom

Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel 33 4-76-58-30-00 Fax 33 4-76-58-34-80

Literature Requests

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 CONDITIONS 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. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life.

Atmel Corporation All rights reserved. logo and combinations thereof, Everywhere You and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.

Printed on recycled paper.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ATR2731-ILQY Datasheet file may be downloaded here without warranties.

Datasheet ID: ATR2731-ILQY 519291