U2794B-NFSG3H

U2794B-NFSG3H Datasheet

U2794B

Part	Datasheet
U2794B-NFSG3H	U2794B-NFSG3H (pdf)

Related Parts	Information
U2794B-NFSH	U2794B-NFSH

PDF Datasheet Preview
• Supply Voltage 5V • Very Low Power Consumption 125 mW • Very Good Image Rejection By Means of Phase Control Loop for Precise 90° Phase Shifting • Duty-cycle Regeneration for Single-ended LO Input Signal • Low LO Input Level dBm • LO Frequency from 70 MHz to 1 GHz • Power-down Mode • 25 dB Gain Control • Very Low I/Q Output DC Offset Voltage Typically < 5 mV • Low Current Consumption • Easy to Implement • Perfect Performance for Large Variety of Wireless Applications Electrostatic sensitive device. Observe precautions for handling. 1000-MHz Quadrature Demodulator U2794B The silicon monolithic integrated circuit U2794B is a quadrature demodulator manufactured using Atmel’s advanced UHF technology. This demodulator features a frequency range from 70 MHz to 1000 MHz, low current consumption, selectable gain, power-down mode and adjustment-free handling. The IC is suitable for direct conversion and image rejection applications in digital radio systems up to 1 GHz such as cellular radios, cordless telephones, cable TV and satellite TV systems. Figure Block Diagram 5,6 14 Power down RFin 7 8 11 GC OUTPUT 2I 90°Control loop 16,18 GND 0° 90° Frequency doubler Duty cycle 15 LO regenerator 17 13 PC 12 PCX OUTPUT 20 QX Pin Configuration Figure Pinning SSO20 I2 II 3 IIX 4 RFin 7 RFXin 8 QQX 10 20 QX 19 Q 18 GND 17 LOin 16 GND 15 LOXin 14 PU 13 PC 12 PCX 11 GC 2 U2794B Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Description Symbol Function IX output I output II lowpass filter I IIX lowpass filter I VS RFin RFXin QQ Supply voltage Supply voltage RF input RFX input QQ lowpass filter Q QQX lowpass filter Q GC gain control PCX phase control Ordering Information Extended Type Number U2794B-NFSH U2794B-NFSG3H Package Information Package SSO20 Dimensions in mm Package SSO20 Remarks Tube, MOQ 830 pcs, Pb-free Taped and reeled, MOQ 4000 pcs, Pb-free technical drawings according to DIN specifications 14 U2794B 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.

PDF Datasheet Preview

• Supply Voltage 5V
• Very Low Power Consumption 125 mW
• Very Good Image Rejection By Means of Phase Control Loop for Precise 90° Phase

Shifting
• Duty-cycle Regeneration for Single-ended LO Input Signal
• Low LO Input Level dBm
• LO Frequency from 70 MHz to 1 GHz
• Power-down Mode
• 25 dB Gain Control
• Very Low I/Q Output DC Offset Voltage Typically < 5 mV
• Low Current Consumption
• Easy to Implement
• Perfect Performance for Large Variety of Wireless Applications

Electrostatic sensitive device. Observe precautions for handling.
1000-MHz Quadrature Demodulator

U2794B

The silicon monolithic integrated circuit U2794B is a quadrature demodulator manufactured using Atmel’s advanced UHF technology. This demodulator features a frequency range from 70 MHz to 1000 MHz, low current consumption, selectable gain, power-down mode and adjustment-free handling. The IC is suitable for direct conversion and image rejection applications in digital radio systems up to 1 GHz such as cellular radios, cordless telephones, cable TV and satellite TV systems.

Figure Block Diagram
5,6 14

Power down

RFin 7 8
11 GC

OUTPUT 2I
90°Control loop
16,18 GND
0° 90°

Frequency doubler

Duty cycle 15 LO regenerator 17
13 PC 12 PCX

OUTPUT 20 QX

Pin Configuration

Figure Pinning SSO20

I2 II 3

IIX 4

RFin 7

RFXin 8

QQX 10
20 QX 19 Q 18 GND 17 LOin 16 GND 15 LOXin 14 PU 13 PC 12 PCX 11 GC
2 U2794B

Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Pin Description

Symbol Function

IX output

I output

II lowpass filter I

IIX lowpass filter I

VS RFin RFXin QQ

Supply voltage Supply voltage RF input RFX input QQ lowpass filter Q

QQX lowpass filter Q

GC gain control

PCX phase control
Ordering Information

Extended Type Number U2794B-NFSH U2794B-NFSG3H

Package Information

Package SSO20

Dimensions in mm

Package SSO20

Remarks Tube, MOQ 830 pcs, Pb-free Taped and reeled, MOQ 4000 pcs, Pb-free
technical drawings according to DIN specifications
14 U2794B

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 U2794B-NFSG3H Datasheet file may be downloaded here without warranties.

Datasheet ID: U2794B-NFSG3H 519475