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-W Impedances on All Three Ports Applications • Infrastructure Digital Communication Systems • 1700 MHz to 2300 MHz Receivers for CDMA/PCS/DCS/UMTS Base Stations Electrostatic sensitive device. Observe precautions for handling. 1700 - 2300 MHz High Linearity SiGe Active Receiver Mixer T0781 Description The T0781 is a high linearity active mixer which is manufactured using Atmel’s advanced Silicon-Germanium technology. This mixer features a frequency range of 1700 MHz to 2300 MHz. It operates from a single 5-V supply and provides 12 dB of conversion gain while requiring only 0 dBm input to the integrated LO driver. An IF amplifier is also included. Preliminary The T0781 incorporates internal matching on each RF, IF and LO ports to enhance ease of use and to reduce the external components required. The RF and LO inputs can be driven differentially or single-ended. Figure 1. Block Diagram RFP RFN 4 5 1 16 13 IFP IFN LOP 12 LON Rev. 4534B–SIGE–01/03 1 Pin Configuration Figure 2. Pinning SSOP16 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 2 Pin Symbol Function 1 IFP IF positive output 2 VCC 5-V power supply 3 GND Ground 4 RFP RF positive input 5 RFN RF negative input 6 GND Ground 7 VCC 5-V power supply 8 L1 External inductor terminal 9 L2 External inductor terminal 10 VCC 5-V power supply 11 GND Ground 12 LON Local oscillator, negative input 13 LOP Local oscillator, positive input 14 GND Ground 15 VCC 5-V power supply 16 IFN IF negative output T0781 4534B–SIGE–01/03 T0781 Absolute Maximum Ratings (1) All voltages are referred to GND. Parameters Symbol Value Unit VCC 5.5 V LO input LOP, LON 10 dBm IF input RFP, RFN 15 V Operating temperature TOP -40 to +85 °C Storage temperature Tstg -65 to +150 °C Supply voltage Notes: 1. The device may not survive all maximum values applied simultaneously. Thermal Resistance Parameters Symbol Value Unit Junction ambient RthJA TBD K/W Junction case RthJC 46 °C/W Electrical Characteristics Test Conditions: VCC = 5 V, Tamb = 25°C, RF input: -40 dB at 1880 MHz, LO input: 0 dBm at 1680 MHz No. 1 Parameters Test Conditions 1700 to 2000 MHz Operation Pin Symbol Min. 4, 5 fRF Typ. 2000 to 2300 MHz Operation Max. Min. 1700 2000 fLO 1400 1, 16 FIF 30 200 4, 5 IIP3 12 Typ. Max. Unit Type* 2000 2300 MHz B, C 2000 1700 2300 MHz B, C 300 30 200 300 MHz B, C 15 12 15 dBm D AC Performance 1.1 RF frequency range For RF = 2000 to 2300 MHz operation, single-ended RF + LO drive is recommended 1.11 LO frequency range 1.2 IF frequency range 1.3 Input IP3 1.4 Input P1dB 4, 5 P1dB 1 2 3 5 dBm D 1.5 Conversion gain 1, 16 G 9 12 6 9 dB A RF1 = RF2 = -15 dBm/tone, 1 MHz spacing *) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter Note: 1. The return losses shown were measured with the T0781 mounted on Atmel’s FR4 evaluation boards using standard matching practices as indicated on the respective application schematic (see Figure 23 and Figure 24). Users following the RF, LO and IF matching guidelines will achieve similar performance. 3 4534B–SIGE–01/03 Electrical Characteristics (Continued) Test Conditions: VCC = 5 V, Tamb = 25°C, RF input: -40 dB at 1880 MHz, LO input: 0 dBm at 1680 MHz No. Parameters 1.6 SSB noise figure 1.7 RF return loss 1.8 Test Conditions 1700 to 2000 MHz Operation Pin Symbol Typ. Max. 1, 16 NFSSB 14 15 Matched to 50 W (1) 4, 5 RLRF 20 LO return loss Matched to 50 W (1) 12, 13 RLLO 1.9 IF return loss Matched to 50 W (1) 1, 16 RLIF 1.10 LO drive Matched to 50 W 12, 13 PLO 2 Min. -3 2000 to 2300 MHz Operation Typ. Max. Unit Type* 16 19 dB D 20 dB D 20 20 dB D 20 20 dB D 0 +3 Min. -3 0 +3 dBm D Isolation Performance 2.1 Leakage (LO-RF) 12, 13 ALO-RF -60 -40 -30 -20 dBm D 2.2 Leakage (LO-IF) 12, 13 ALO-IF -30 -20 -30 -20 dBm D 2.3 Leakage (RF-IF) -53 -40 -35 -25 dBm D 3 Miscellaneous 3.1 Supply voltage 2, 7, 10, 15 VCC 5.0 5.25 5.0 5.25 V A 3.2 Supply current 2, 7, 10, 15 ICC 160 180 160 180 mA A 4.75 4.75 *) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter Note: 1. The return losses shown were measured with the T0781 mounted on Atmel’s FR4 evaluation boards using standard matching practices as indicated on the respective application schematic (see Figure 23 and Figure 24). Users following the RF, LO and IF matching guidelines will achieve similar performance. 4 T0781 4534B–SIGE–01/03 T0781 1700 MHz to 2000 MHz: Typical Device Performance Figure 3. Conversion Gain Versus Temperature, PLO = 0 dBm Conversion Gain (dB) 20.0 Conversion Gain vs Tem perature Plo = 0dBm 16.0 12.0 8.0 4.0 0.0 1400 -40ºC +25ºC +85ºC 1600 1800 2000 Frequency (MHz) 2200 Figure 4. Conversion Gain Versus LO Drive, Tamb = 25°C Conversion Gain vs LO Drive T=+25ºC Conversion Gain (dB) 20.0 16.0 12.0 8.0 4.0 0.0 1400 -3 dBm 0 dBm +3 dBm 1600 1800 2000 Frequency (MHz) 2200 Figure 5. Leakages, PLO = 0 dBm at Pins, PRF = -20 dBm at Pins, Tamb = 25°C Leakages Plo=0 dBm at pins, Prf=-20 dBm at pins, T=+25ºC Leakage (dBm) 0 LO-RF RF-IF LO-IF -20 -40 -60 -80 1400 1600 1800 2000 Frequency (MHz) 2200 5 4534B–SIGE–01/03 Figure 6. Input IP3 Versus Temperature PLO = 0 dBm Input IP3 vs Tem perature Plo = 0dBm Input IP3 (dBm) 20.0 -40ºC +25º C +85º C 18.0 16.0 14.0 12.0 10.0 1700 1750 1800 1850 1900 1950 2000 Frequency (MHz) Figure 7. Input IP3 Versus LO Drive, Tamb = 25°C Input IP3 vs LO Drive T=+25ºC Input IP3 (dBm) 20.0 -3 dBm 0 dBm +3dBm 18.0 16.0 14.0 12.0 10.0 1700 1750 1800 1850 1900 Frequency (MHz) 1950 2000 Figure 8. Noise Figure Versus Temperature, PLO = 0 dBm Noise Figure vs Tem perature Plo=0dBm Noise Figure (dB) 20 -40ºC +25ºC +85ºC 18 16 14 12 10 1700 1750 1800 1850 1900 1950 2000 Frequency (MHz) 6 T0781 4534B–SIGE–01/03 T0781 Figure 9. RF & LO Return Loss, Tamb = 25°C RF & LO Return Loss (Note 1) T=+25ºC 0 RF RL Return Loss (dB) -5 LO RL -10 -15 -20 -25 -30 1400 1600 1800 2000 Frequency (MHz) 2200 Figure 10. IF Return Loss, Tamb = 25°C IF Return Loss (Note 1) T=+25ºC 0 Reutrn Loss (dB) -5 -10 -15 -20 -25 -30 30 60 90 120 150 180 210 240 270 300 Frequency (MHz) Figure 11. Input P1dB Versus Temperature, PLO = 0 dBm Input P1dB vs Tem perature Plo=0 dBm Input P1dB (dBm) 5.0 3.0 1.0 -1.0 -40ºC +25º C +85º C -3.0 -5.0 1700 1750 1800 1850 1900 1950 2000 Frequency (MHz) 7 4534B–SIGE–01/03 Figure 12. Input P1dB Versus LO Drive, Tamb = 25°C Input P1dB vs LO Drive T=+25ºC Input P1dB (dBm) 5.0 3.0 1.0 -1.0 -3 dBm 0 dBm +3dBm -3.0 -5.0 1700 1750 1800 1850 1900 1950 2000 Frequency (MHz) 8 T0781 4534B–SIGE–01/03 T0781 2200 MHz to 2300 MHz: Typical Device Performance, Single-ended Drive Figure 13. Conversion Gain Versus Temperature, PLO = 0 dBm Conversion Gain vs Tem perature Plo=0 dBm Conversion Gain (dB) 20 -40ºC +25ºC +85ºC 16 12 8 4 0 2000 2100 2200 2300 2400 2500 Frequency (MHz) Figure 14. Conversion Gain Versus LO Drive, Tamb = 25°C Conversion Gain vs LO Drive T=+25ºC Conversion Gain (dB) 20 -3 dBm 0 dBm +3 dBm 16 12 8 4 0 2000 2100 2200 2300 2400 2500 Frequency (MHz) Figure 15. Leakages, PLO = 0 dBm at Pins, PRF = -20 dBm at Pins, Tamb = 25°C Leakage (dBm) -20 Leakages Plo=0 dBm at pins, Prf=-20 dBm at pins, T=+25ºC LO-RF RF-IF LO-IF -25 -30 -35 -40 -45 1800 1900 2000 2100 2200 2300 2400 2500 Frequency (MHz) 9 4534B–SIGE–01/03 Figure 16. Input IP3 Versus Temperature PLO = 0 dBm Input IP3 vs Tem perature Plo=0dBm Input IP3 (dBm) 20.0 -40ºC +25ºC +85ºC 18.0 16.0 14.0 12.0 10.0 2000 2050 2100 2150 2200 Frequency (MHz) 2250 2300 Figure 17. Input IP3 Versus LO Drive, Tamb = 25°C Input IP3 vs LO Drive T=+25ºC Input IP3 (dBm) 20.0 -3 dBm 0 dBm +3 dBm 18.0 16.0 14.0 12.0 10.0 2000 2050 2100 2150 2200 Frequency (MHz) 2250 2300 Figure 18. Input P1dB Versus Temperature, Tamb = 25°C Input P1dB vs Tem perature Plo=0dBm Input P1dB (dBm) 10.0 -40ºC +25ºC +85ºC 8.0 6.0 4.0 2.0 0.0 2000 2050 2100 2150 2200 2250 2300 Frequency (MHz) 10 T0781 4534B–SIGE–01/03 T0781 Figure 19. RF & LO Return Loss, VCC = 5 V, Tamb = 25°C RF & LO Return Loss (Note 1) Vcc=5V, T=+25ºC Return Loss (dB) 0 -5 RF RL -10 LO RL -15 -20 -25 -30 -35 1800 1900 2000 2100 2200 2300 2400 255 300 Frequency (MHz) Figure 20. IF Return Loss, Tamb = 25°C IF Return Loss (Note 1) T=25C Reutrn Loss (dB) 0 -5 -10 -15 -20 -25 -30 30 75 120 165 210 Frequency (MHz) Figure 21. Input P1dB Versus Temperature, PLO = 0 dBm Input P1dB vs Tem perature Plo=0dBm Input P1dB (dBm) 10.0 8.0 6.0 -40ºC +25ºC +85ºC 4.0 2.0 0.0 2000 2050 2100 2150 2200 2250 2300 Frequency (MHz) 11 4534B–SIGE–01/03 Figure 22. Input P1dB Versus LO Drive, Tamb = 25°C Input P1dB vs LO Drive T=25C 10.0 -3 dBm 0 dBm +3 dBm Input P1dB (dBm) 8.0 6.0 4.0 2.0 0.0 2000 2050 2100 2150 2200 2250 2300 Frequency (MHz) Figure 23. 1700 MHz to 2000 MHz Application Schematic (Differential Drive) 5V IFout J5 Lfil C3 1 2 3 4 5 6 7 8 Vcc T9 RFin J3 T2 IC1 C7 C4 L3 C5 Vcc C20 L1 Vcc C9 16 15 14 13 12 11 10 9 C1 Vcc L4 C11 C12 T11 LOin J4 Vcc C21 L2 Vcc C6 12 T0781 Vcc C10 T0781 4534B–SIGE–01/03 T0781 Bill of Materials (for 1700 MHz to 2000 MHz Evaluation Board) Component Designator Value Vendor Part Number Description IC1 Atmel T0781 J3, J4, J5 Johnson Components 142-0701-851 SMA connector, end launch with tab, for 0.062 inch board Panansonic EHF-FD1619 RF transformer IF transformer T9, T11 1:1 T2 1:1 Mini-Circuits TC1-1 Lfil 1 µH Würth Elektronik 74476401 L1, L2 see Table 1 TOKO LL1608-FSR10J L3 nc SiGe receiver mixer Inductor, 1210 footprint, minimum 200 mA rating Inductor, 0603 footprint, high Q series L4 nc C1, C3, C20, C21 6.8 pF Capacitor, 0603 footprint C6, C10 100 pF Capacitor, 0603 footprint C7, C9 120 pF Capacitor, 0603 footprint C4, C5 2.2 pF Capacitor, 0603 footprint C11, C12 3.3 pF Capacitor, 0603 footprint The T0781 utilizes an IF tank circuit to maximize performance across the entire IF bandwidth. the off-chip inductors L1 and L2 resonate with an on-chip capacitor (4 pF) to provide IF tunability. therefore, L1 and L2 must be selected such that the resonance occurs at the desired IF. The following table provides the inductor values required on the evaluation board for some common intermediate frequencies. By default, all evaluation board are shipped with L1 = L2 = 100 nH, resulting in a 200 MHz resonant IF. Table 1. IF Tank Circuit IF (MHz) Typical L1, L2 (nH) TOKO Part Number 70 680 LL2012-FHR68J 150 150 LL1608-FSR15J 200 100 LL1608-FSR10J 300 39 LL1608-FS39NJ 13 4534B–SIGE–01/03 Figure 24. Demo Test Board (Fully Asembled PCB) J5 47 mm T2 C4 L3 J3 C9 C1 IC1 T0781 T9 C7 C3 C11 T11 L4 C5 C20 C12 C21 L1 C6 J4 L2 C10 Lfil CON 2 1 47 mm 14 T0781 4534B–SIGE–01/03 T0781 Figure 25. 2000 MHz to 2300 MHz Application Schematic (Single-ended Drive) 5V IFout J5 Lfil C7 C3 C2 RFin Vcc C4 J3 L3 C5 Vcc C20 IC 1 1 2 3 4 5 6 7 8 L1 T2 C9 T0781 Vcc 16 15 14 13 12 11 10 9 C1 Vcc C11 LOin R2 J4 L4 Vcc C12 C21 L2 Vcc Vcc C6 C10 Bill of Materials for (2000 MHz to 2300 MHz Evaluation Board) Component Designator Value Vendor Part Number IC1 Atmel T0781 J3, J4, J5 Johnson Components 142-0701-851 Description SiGe receiver mixer SMA connector, end launch with tab, for 0.062 inch board T2 1:1 Mini-Circuits TC1-1 IF transformer Lfil 1 µH Würth Elektronik 74476401 L1, L2 see Table 1 TOKO LL1608-FSR10J L3 2.2 nH L4 3.3 nH TOKO LL1608-FSR8NJ Inductor, 0603 footprint, high Q series C1, C3, C20, C21 6.8 pF C2 2.7 pF C4 18 pF C6, C10 100 pF Capacitor, 0603 footprint C7, C9 120 pF Capacitor, 0603 footprint Inductor, 1210 footprint, minimum 200 mA rating Inductor, 0603 footprint, high Q series Capacitor, 0603 footprint C5 2.2 pF Capacitor, 0603 footprint C11 3.3 pF Capacitor, 0603 footprint C12 2.7 pF Capacitor, 0603 footprint R1, R2 0µ Resistor, 0603 footprint 15 4534B–SIGE–01/03 Figure 26. Demo Test Board (Fully Asembled PCB) J5 47 mm T2 C7 C3 C5 R2 C20 J3 C9 IC1 C1 R3 C11 R4 C21 C12 T0781 T0780 C4 R1 L1 C6 J4 L2 C10 Lfil CON 2 1 47 mm Figure 27. Recommended Package Footprint In order to avoid soldering problems, plugging of the ground vias under the heat slug is recommended! 31.75 3.0 6.35 0.74 0.4 0.74 3.0 f0.33 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. 16 T0781 4534B–SIGE–01/03 T0781 Ordering Information Extended Type Number Package Remarks T0781-6C TSSOP16 – Package Information 17 4534B–SIGE–01/03 Atmel Headquarters Atmel Operations Corporate Headquarters Memory 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 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 Tsimhatsui 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 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 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 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. 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