Down Converter, 1500 - 2000 MHz SA65-0003 V 1.00 Features n n n n n n n QSOP-16 LNA Mixer integration. Typical conversion gain of 7 dB. Typical Two-Tone IM Ratio of ≥ 50 dBm. LO Drive-Level: +13 dBm. Surface Mount QSOP16 Package. Low Cost/High Performance. 50 ohm Nominal Impedance. Description M/A-COM’s SA65-0003 is an integrated assembly containing a GaAs FET MMIC LNA and GaAs FET mixer. This device is packaged in a 16-leaded QSOP plastic surface mount package. The amplifier can be biased with either +3V or +5V, the mixer requires no DC bias. The conversion gain of the integrated combination is typically 6 dB at +3V bias and 8 dB at +5V bias. The SA65-0003 is ideally suited for RF/IF communications applications requiring down conversion with some gain. This MCM contains a mixer that is fabricated using a mature 1-micron GaAs process, it also contains an LNA that is fabricated using a low cost mature 0.5-micron gate length GaAs MESFET process. Both die feature full passivation for increased performance and reliability. Functional Block Diagram Recommended PCB Layout Down Converter, 1500 - 2000 MHz SA65-0003 V 1.00 Electrical Specifications TA = +25°C, Z0=50 Ohms, RF = -10 dBm1, LO = +13 dBm, IDD ≈ 45 mA Test Conditions1 Units Min Typical Max LNA +3V LNA +5V dB dB 3.1 4.6 6.0 8.0 6.6 8.8 Isolation 4 LO to RF IN LO to IF dB dB 29 19 32 23 — — Reverse Isolation5 LNA +3V dB 30 40 — VSWR LO RF IN IF Ratio Ratio Ratio — — — 1.4:1 1.9:1 1.9:1 — 2.5:1 2.1:1 Input IP3 1,2,3 LNA +3V LNA +5V dB dB 13 21 17.5 25 — — Parameter Conversion Gain 1. 2. 3. 4. 5. 6. 7. 6,7 For IP3 measurements, RFIN = -24 dBm, this low RF IN level gets amplified through the LNA. For IP3 measurements, RFIN2 = RFIN1 + 10 MHz, LO = RFIN1—140 MHz. For IP3 measurements, IP3 = IMR/2 + PIN. RF IN to IF Isolation is typically 0 dB. Reverse Isolation is measured from IF to RFIN with the IF at –10 dBm, LO at +13 dBm. The amplifier has a normal gain of 12.5 dB, 3V bias and 14.0 dB, 5V bias. Amplifier typical Noise Figure = 1.5 dB. NFT = NF1 + (NF2 - 1)/G1 Absolute Maximum Ratings 8 Parameter Pin Configuration Absolute Maximum Pin # Function Description 9 +17 dBm 1 GND RF and DC Ground LO Drive Power 9 +23 dBm 2 RES External current control (optional) VDD +10 VDC 3 GND RF and DC Ground Current 10 80 mA 4 RF IN RF Input of the amplifier 5 GND RF and DC Ground 6 LO LO port of the mixer 7 GND RF and DC Ground RF Input Power Channel Temperature 11 +150°C Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 8. Operation of this device above any one of these parameters may cause permanent damange. 9. Total power for RF and LO ports should not exceed +23 dBm. 10. When pin #2 is used to increase current—see note 6 above. 11. Thermal resistance (?jc) = +95°C/W. 8 IF IF port of the mixer 9 RF GND RF and DC Ground 10 GND RF and DC Ground 11 RF 12 RF port of the mixer 12 GND RF and DC Ground 12 13 RF OUT 14 GND RF output of the amplifier RF and DC Ground 15 VDD Positive supply voltage 16 GND RF and DC Ground 12. The output port of the amplifier, RFOUT, and the input port of the mixer, RF, are adjacently placed so that an external filter can be used. Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 2 Down Converter, 1500 - 2000 MHz SA65-0003 V 1.00 External Circuitry Parts 13 Spurious Table Part Value Purpose C1 47 pF DC Block 4X C2 47 pF By-pass C3 3.3 pF LO Port Matching Network L1 3.9 nH Tuning Harmonic L2 3.0 nH LO Port Matching Network of LO (n) L3 12 nH RF Choke R1 See Note 14 Optional Current Control R2 5.1 k Ohms DC Return R3 330 Ohms LO Port Matching Network 13. All external circuitry parts are readily available, low cost surface mount components (.060 in. x .030 in. or .080 in. x .050 in.). 14. Pin 2 allows use of an external resistor to ground for optional higher current. For 20 mA operation, no resistor is used. For IDD ≈ 30 mA, R2 = 43 Ohms For IDD ≈ 45 mA, R2 = 15 Ohms For IDD ≈ 60 mA, R2 = 10 Ohms -12 -37 -65 -75 -75 -1.9 -39 -72 -77 -77 -2.8 -29 -68 -66 -74 3X 7.1 -30 -70 -77 -75 7.0 -27 -37 -68 -74 2X 11.8 -27 -47 -75 -75 4.5 0 -48 -69 -74 11.8 0 -58 -76 -76 N/A -5 -34 -69 -70 N/A -5 -46 -75 -70 0X 1X 2X 3X 4X 1X 0X Harmonic of RFIN (m) The spurious table shows the spurious signals resulting from the mixing of the RFIN and LO input signals, assuming down conversion. The number of dB below the conversion loss level indicates the mixing products. The lower frequency mixing term is shown for two different input levels. The top number is for an RFIN power level of –19 dB; the lower number is for –29 dB. Assuming the LNA gain is approximately 14 dB, the mixer input will see approximately –5 dB and –15 dB. |mFRF - nFLO|, RF = -19 dB |mFRF - nFLO|, RF = -29 dB RF = 1850 MHz LO = 1710 MHz Typical Performance Curves Isolation at +3V Gain +5V L-R L-I 40 8 30 Isolation (dB) Gain (dB) +3V 10 6 4 2 20 10 0 1.5 1.6 1.7 1.8 1.9 2.0 Frequency (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 1.5 1.6 1.7 1.8 1.9 2.0 Frequency (GHz) 3 Down Converter, 1500 - 2000 MHz SA65-0003 V 1.00 Typical Performance Curves VSWR at +3V IIP3 +5V IF 3.0 15 2.5 VSWR IIP3 (dB) +3V 20 10 5 LO RF 2.0 1.5 0 1.0 1.5 1.6 1.7 1.8 1.9 2.0 Frequency (GHz) 1.7 1.8 1.9 2.0 Frequency (GHz) Ordering Information Part Number Package SA65-0003 Bulk Packaging SA65-0003TR Tape and Reel (1K Reel) SA65-0003-TB Units Mounted on Test Board Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 4