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Features
* * * * * * *
Active mixer with conversion gain No external LO driver necessary Low LO drive level required RF and LO ports may be driven single-ended Single 5 V supply voltage High LO-RF isolation Broadband resistive 50 impedances on all three ports
Applications
* Infrastructure digital communication systems * 1700-2000 MHz transceivers for base stations Electrostatic sensitive device. Observe precautions for handling.
1700 - 2000 MHz High Linearity SiGe Active Receiver Mixer T0781
Description
The T0781 is a high linearity active mixer which is manufactured using Atmels advanced Silicon-Germanium technology. This mixer features a frequency range of 1700 - 2000 MHz. It operates from a single 5 V supply and provides 11 dB of conversion gain while requiring only 0 dBm input to the integrated LO driver. An IF amplifier is also included. The T0781 incorporates internal matching on each RF, IF and LO port to enhance ease of use and to reduce the external components required. The RF and LO inputs can be driven differentially or single ended.
Block Diagram
Figure 1.
RFP RFN
4 5 1 16 13
IFP IFN
LOP 12 LON
Rev. A2, 04-Dec-01
Preliminary Information
1 (10)
Preliminary Information
Ordering Information
Extended Type Number T0781 Package TSSOP16 Remarks
Pin Configuration
Figure 2.
IFP VCC GND RFP RFN GND VCC L1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IFN VCC GND LOP LON GND VCC L2
Pin Description
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol IFP VCC GND RFP RFN GND VCC L1 L2 VCC GND LON LOP GND VCC IFN IF positive output 5 V power supply Ground RF positive input RF negative input Ground 5 V power supply External inductor terminal External inductor terminal 5 V power supply Ground Local osc., negative input Local osc., positive input Ground 5 V power supply IF negative output Function
2 (10)
T0781
Rev. A2, 04-Dec-01
T0781
Absolute Maximum Ratings
All voltages are referred to GND.
Parameter Supply voltage LO input IF input Operating temperature Storage temperature Note: Symbol VCC LOP, LON RFP, RFN TOP Tstg Value 5.5 10 15 -40 to +85 -65 to +150 Unit V dBm V C C
The part may not survive all maximums applied simultaneously
Thermal Resistance
Parameter Junction ambient Symbol RthJA Value tbd Unit K/W
Electrical Characteristics
Test conditions: VCC = 5 V, Tamb = 25C, RF input: -40 dB @1880 MHz, LO input: 0 dBm @ 1680 MHz
No. 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 2 1.12 1.13 3 3.1 3.2 Parameters AC Performance Frequency range IF frequency range Input IP3 Input P1dB Conversion gain SSB noise figure RF return loss LO return loss IF return loss LO drive Isolation performance Leakage (LO-RF) Leakage (LO-IF) Miscellaneous Supply voltage Supply current 2, 7, 10, 15 2, 7, 10, 15 VCC ICC 4.75 5 150 5.25 V mA A A 12, 13 12, 13 ALO-RF ALO-IF -60 -30 dBm dBm D D RF1 = RF2 = -17 dBm/tone 4, 5 1, 16 4, 5 4, 5 1, 16 1, 16 4, 5 12, 13 1, 16 12, 13 f FIF IIP3 P1dB G NFSSB RLRF RLLO RLIF PLO -3 1700 10 200 17 4 11 14 14 14 14 0 3 2000 300 MHz MHz dBm dBm dB dB dB dB dB dBm B B D D A D D D D D Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Preliminary Information
Rev. A2, 04-Dec-01
3 (10)
Preliminary Information
Typical Device Performance
Figure 3. Return loss at LO input, VCC = 5.0 V
Return Loss at LO Input
V CC = 5.0V 0 5 Return Loss (dB) 10 15 20 25 30 35 40 1.5 1.6 1.7 1.8 1.9 2 LO Frequency (GHz)
Figure 4. Return loss at IF ouput, VCC = 5.0 V
Return Loss at IF Input VCC = 5.0V
0 5 Return Loss (dB) 10 15 20 25 140
160
180
200
220
240
260
IF Frequency (MHz)
Figure 5. Conversion gain, VCC = 5.0 V, LO = 0 dBm, RFIN = -20 dBm, IF = 200 MHz
Conversion Gain
V CC = 5.0V, LO = 0dBm , RFIN = -20dBm , IF = 200MHz 13
12 Gain (dB)
11
10
9 1.84
1.86 1.88 RF Frequency (GHz)
1.90
1.92
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T0781
Rev. A2, 04-Dec-01
T0781
Figure 6. Return loss at RF input, VCC = 5.0 V)
Return Loss at RF Input
V CC = 5.0V 0 5 Return Loss (dB) 10 15 20 25 1.6 1.7 1.8 RF Frequency (GHz) 1.9 2
Preliminary Information
Rev. A2, 04-Dec-01
5 (10)
Preliminary Information
Demo Test Board Schematic
Figure 7.
5V
IFout J5 Lfil
Vcc Vcc
RFin J3
C3
C7
T2 IC1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9
C9
C1
Vcc
L4 C11 C12 T11 J4 LOin
T9
C4 L3 C5
Vcc
C20 L1
T0781
Vcc
C21 L2
Vcc
C6
Vcc
C10
Bill of Materials
Component Designator IC1 J3, J4, J5
Value
Vendor Atmel Johnson Components
Part Number T0781 142-0701-851
Description SiGe receiver mixer SMA connector, end launch with tab, for .062 inch thick board RF transformer IF transformer Inductor, 1210 footprint, min. 200 mA rating
T9, T11 T2 Lfil L1, L2 L3 C1, C3, C20, C21 C6, C10 C7, C9 C4, C5 C11, C12
1:1 1:1 1 H 100 nH 18 nH 6.8 pF 100 pF 120 pF 2.2 pF 3.3 pF
Panansonic Mini-Circuits
EHF-FD1619 TC1-1
TOKO TOKO
LL1608-FSR10J LL1608-FS18NJ
Inductor, 0603 footprint, high Q series Inductor, 0603 footprint, high Q series Capacitor, 0603 footprint Capacitor, 0603 footprint Capacitor, 0603 footprint Capacitor, 0603 footprint Capacitor, 0603 footprint
6 (10)
T0781
Rev. A2, 04-Dec-01
T0781
Demo Test Board (Fully Asembled PCB)
Figure 8.
J5
47 mm
C7 C3 T9 C4 L3 C5 C20 L1 C6
T2 C9 IC1
T0781
C1 L4
C11
T11
J3
C12 C21 L2 C10
J4
Lfil CON 2 1
47 mm
Recommended Package Footprint
Figure 9.
1.25
0.25 0.74 0.4 0.74 3.0
3.0
0.33 via
0.7
0.9
6.9
all units are in mm - Indicates metalization - vias connect pad to underlying ground plane
Remark: Heatslug must be soldered to GND
Preliminary Information
Rev. A2, 04-Dec-01
7 (10)
Preliminary Information
Package Information
8 (10)
T0781
Rev. A2, 04-Dec-01
T0781
Ozone Depleting Substances Policy Statement
It is the policy of Atmel Germany GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Atmel Germany GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. Atmel Germany GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances.
Preliminary Information
Rev. A2, 04-Dec-01
9 (10)
Atmel Sales Offices
France
3, Avenue du Centre 78054 St.-Quentin-en-Yvelines Cedex Tel: +33 1 30 60 70 00 Fax: +33 1 30 60 71 11
Sweden
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Germany
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United Kingdom
Easthampstead Road Bracknell Berkshire RG12 1LX Tel: +44 1344 707 300 Fax: +44 1344 427 371
Korea
25-4, Yoido-Dong, Suite 605, Singsong Bldg. Youngdeungpo-Ku 150-010 Seoul Tel: +822 785 1136 Fax: +822 785 1137
USA Western
2325 Orchard Parkway San Jose, California 95131 Tel: +1 408 441 0311 Fax: +1 408 436 4200
Rep. of Singapore
Keppel Building #03-00 25 Tampines Street 92, Singapore 528877 Tel: +65 260 8223 Fax: +65 787 9819
USA Eastern
1465 Route 31, Fifth floor Annandale New Jersey 08801 Tel: +1 908 848 5208 Fax: +1 908 848 5232
Italy
Via Grosio, 10/8 20151 Milano Tel: +39 02 38 03 71 Fax: +39 02 38 03 72 34
Taiwan, R.O.C.
8F-2, 266 Sec.1 Wen Hwa 2 Rd. Lin Kou Hsiang, 244 Taipei Hsien Tel: +886 2 2609 5581 Fax: +886 2 2600 2735
Spain
Principe de Vergara, 112 28002 Madrid Tel: +34 91 564 51 81 Fax: +34 91 562 75 14
Japan
Tonetsushinkawa Bldg. 1-24-8 Shinkawa Chuo Ku Tokyo 104-0033 Tel: +81 3 3523 3551 Fax: +81 3 3523 7581
Web Site
http://www.atmel-wm.com
(c) Atmel Germany GmbH 2001. Atmel Germany GmbH makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel Germany GmbH's Terms and Conditions. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel Germany GmbH are granted by the Company in connection with the sale of Atmel Germany GmbH products, expressly or by implication. Atmel Germany GmbH's products are not authorized for use as critical components in life support devices or systems. Data sheets can also be retrieved fron the Internet: http://www.atmel-wm.com
Rev. A2, 04-Dec-01

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