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| T0780 800-1000 MHz High Linearity SiGe Active Receive Mixer Description The T0780 is a high-linearity active mixer which is manufactured using Atmel Wireless & Microcontrollers' advanced Silicon-Germanium technology. This mixer features a frequency range of 800 to 1000 MHz. It operates from a single 5 V supply and provides 10 dB of conversion gain while requiring only 0 dBm input to the integrated LO driver. An IF amplifier is also included. The T0780 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. Electrostatic sensitive device. Observe precautions for handling. 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 * Small SSO16 package Applications * Digital communication systems * 800-1000 MHz transceivers for base stations Block Diagram RFP RFN 4 5 1 16 IFP IFN 13 LOP 12 LON Ordering Information Extended Type Number T0780 Package SSOP16 Remarks Rev. A1, 14-Aug-01 1 (8) Preliminary Information T0780 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 Function 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 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 Pinning Absolute Maximum Ratings All voltages are referred to GND. Parameters Supply voltage LO input IF input Operating temperature Storage temperature Symbol VCC LOP , LON RFP , RFN TOP Tstg -40 -40 Min. Typ. 5.0 Max. 6.0 10 15 +85 +150 Unit V dBm dBm C C Thermal Resistance Parameters Junction ambient Symbol RthJA Value t.b.d. Unit K/W 2 (8) Rev. A1, 14-Aug-01 Preliminary Information T0780 Electrical Characteristics Test conditions: Vcc = +5 V, Tamb = +25C RF input: -20 dBm @ 900 MHz LO input: 0.7 dBm @ 700 MHz Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit 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 -3 RF1 = RF2 = -17 dBm/tone f 800 10 200 20 5 10 15 14 14 14 0 3 1000 300 MHz MHz dBm dBm dB dB dB dB dB dBm FIF IP3 Isolation performance Leakage (LO-RF) Leakage (LO-IF) -40 -26 dBm dBm Miscellaneous Supply voltage Supply current VCC ICC 4.75 5 150 5.25 V mA Rev. A1, 14-Aug-01 3 (8) Preliminary Information T0780 Typical Device Performance Conversion Gain vs. RF Frequency VCC = 5.0V, LO = 0dBm, RFIN = -20dBm, IF = 200MHz 12 0 Return Loss (dB) 5 10 15 20 25 880 Return Loss vs. RF Frequency VCC = 5.0V 11 Gain (dB) 10 9 8 880 890 900 RF Frequency (MHz) 910 920 890 900 RF Frequency (MHz) 910 920 Figure 1. Conversion Gain VCC = 5.0 V, LO = 0 dBm, RFIN = -20 dBm, IF = 200 MHz Figure 2. Return Loss vs. RF Frequency VCC = 5.0 V Return Loss at LO Input VCC = 5.0V 0 5 10 15 20 25 680 Return Loss vs. IF Frequency VCC = 5.0V 0 5 10 15 20 25 150 Return Loss (dB) 690 700 LO Frequency (MHz) 710 720 Return Loss (dB) 175 200 IF Frequency (MHz) 225 250 Figure 3. Return Loss at LO Input VCC = 5.0 V Figure 4. Return Loss vs. IF Frequency VCC = 5.0 V 4 (8) Rev. A1, 14-Aug-01 Preliminary Information T0780 Demo Test Board Schematic 5V IFout J5 Lfil Vcc C3 T2 C7 IC1 1 2 3 4 5 6 7 8 L1 16 15 14 13 12 11 10 9 C9 C1 Vcc C4 RFin J3 C5 R2 C20 R1 Vcc R3 C11 LOin R4 C21 L2 J4 C12 Vcc T0780 Vcc Vcc C6 Vcc C10 Bill of Material Component Designator IC1 J3, J4, J5 T2 Lfil L1, L2 C1, C3, C20, C21 C6, C10 C7, C9 C4, C5 C11, C12 R1, R2, R3, R4 1:1 1 H 100 nH 27 pF 100 pF 120 pF 33 pF 39 pF 0 Ohm TOKO Value Vendor Atmel Wireless & Microcontrollers Johnson Components Mini-Circuits Part Number T0780 142-0701-851 TC1-1 SiGe receiver mixer SMA connector, end launch with tab, for .062 inch thick board IF transformer Inductor, 1210 footprint, min. 200 mA rating LL1608-FSR10J Inductor, 0603 footprint, high Q series Capacitor, 0603 footprint Capacitor, 0603 footprint Capacitor, 0603 footprint Capacitor, 0603 footprint Capacitor, 0603 footprint Resistor, 0603 footprint Description Rev. A1, 14-Aug-01 5 (8) Preliminary Information T0780 Demo Test Board (Fully Assembled PCB) J5 47 mm T2 C7 C3 C4 R1 C5 R2 C20 L1 C6 C9 IC1 T0780 C1 R3 R4 C21 L2 C10 C11 C12 J3 J4 Lfil CON 2 1 47 mm Recommended Package Footprint 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 6 (8) Rev. A1, 14-Aug-01 Preliminary Information T0780 Package Information SSOP16 7 (8) Rev. A1, 14-Aug-01 Preliminary Information T0780 Ozone Depleting Substances Policy Statement lt 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 systerns with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. lt 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 improvernents 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 1 and 11 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. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Atmel Wireless & Microcontrollers products for any unintended or unauthorized application, the buyer shall indemnify Atmel Wireless & Microcontrollers against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Data sheets can also be retrieved from the Internet: http://www.atmel-wm.com Atmel Germany GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423 Rev. A1, 14-Aug-01 8 (8) |
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