Preliminary Release Low Cost MMIC Mixer 1400 MHz - 2100 MHz MD54-0006 V1.00 Features • • • • • • SOT-25 .114 ± 2.9 ± . 0 7 5± 1.90± +12 dBm Input Power @ 1 dB Compression High Isolation, 28 dB LO to RF +3 to +8 dBm LO Drive Level DC - 500 MHz 3 dB IF Bandwidth Does not require DC bias Ultra-Miniature SOT-25 plastic Package .008 0.2 .008 0.20 + .008 .063 - 004 + 0.20 1 . 6 0 - 0.10 . 1 1 0 ± .008 2 . 8 0± 0.20 Description M/A-COM’s MD54-0006 is a passive mixer that achieves the performance of a double balanced diode mixer in an ultra-miniature SOT-25 package. The MD54-0006 is ideally suited for use where high level RF signals and very wide dynamic range are required. Typical applications include frequency up/down conversion, modulation, and demodulation in receivers and transmitters for basestation and portable systems. The MD54-0006 uses FETs as mixing elements to achieve very wide dynamic range in a low cost plastic package. The mixer operates with LO drive levels of +3 dBm to +8 dBm. The LO port may be externally tuned for operation in various frequency bands. M/A-COM's MD54-0006 is fabricated using a mature 0.5 micron gate length GaAs MESFET process. The process features full passivation for increased performance and reliability. The MD540006 is 100 % RF tested to ensure performance specification compliance. + .008 .043 - .004 1 . 1 0 + 0.20 - 0.10 . 0 0 2± .002 0 . 0 5± 0.05 . 0 3 1 + .004 - .007 0 . 8 0 + 0.10 - 0.18 . 0 0 6 + .004 - .002 + 0.10 0.15 - 0.05 . 0 1 6 + .004 - .002 + 0.10 0.40 - 0.05 .008 MIN 0.20 MIN Ordering Information Part Number Package MD54-0006 SOT-25 5 Lead Plastic MD54-0006TR Forward Tape and Reel * MD54-0006SMB Designer’s Kit * If specific reel size is required, consult factory for part number assignment. Electrical Specifications: RF = 1850 MHz (-10 dBm), LO = 1710MHz (+5 dBm), IF = 140 MHz,A T= 25°°C Parameter Test Conditions Conversion Loss Units Min. dB Isolation VSWR Input 1 dB Compression 2 Two-Tone IM Ratio 20 Typ. Max. 8.0 9.0 LO to RF dB LO to IF dB 15 28 RF to IF dB 15 RF Port 2.0:1 LO Port1 2.0:1 IF Port 2.0:1 RF Freq. = 1850 MHz, LO =+5 dBm dBm 12 Two Tones at -10 dBm each dBc 55 Tone spacing = 100 kHz, IF = 140 Mhz 1. With external LO Port matching. See functional diagram on Page 2. 2. IMR vs . RF Drive can be calculated by the formula: IMR=40-1.5*Pin Specifications Subject to Change Without Notice. M/A-COM Inc. 1 Low Cost MMIC Mixer MD54-0006 V1.00 Absolute Maximum Ratings1 Parameter Functional Block Diagram Absolute Maximum RF 2 +27 dBm 2 LO Drive Power +27 dBm Storage Temperature -40 °C to +85 °C Operating Temperature -65 °C to +150 °C RF Input Power 1. Exceeding any one or combination of these limits may cause permanent damage. 2. Ambient Temperature (T A) = + 25°C 1 5 4 L1 IF 2 LO 3 C1 R1 External Circuitry Parts List Pin Configuration LO Frequency Pin No. Pin Name Description 1 RF Port RF Input Part 1500 MHz 1710 MHz 2300 MHz 2 IF Port IF Output R1 470 ohms 470 ohms 820 ohms 3 LO Port LO Input L1 6.8 nH 4.7 nH 2.7 nH 4 GND Ground C1 3.3 pF 2.2 pF 2.2 pF 5 GND Ground 1. The external LO matching network allows tuning from 1400 MHz to 2300 MHz. The networks given above are intended to serve as guidelines for matching in different bands. 2. All off-chip components are low-cost surface mount components obtainable from multiple sources. (0.060 in. x 0.030 in. or 0.080 in. x 0.050 in. ) Recommended PCB Configuration Cross Section View Layout View 1 5 RF Traces + Components L1 RF Ground 4 2 DC Routing 3 R1 C1 Customer Defined The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinuities between 5 0 Ω lines and package pins. M/A-COM recommends an FR-4 dielectric thickness of 0.008” (0.2 mm) yielding a 5 0 Ω line width of 0.015” (0.38 mm). The recommended metalization thickness is 1 ounce copper. Specifications Subject to Change Without Notice. 2 M/A-COM Inc. Low Cost MMIC Mixer MD54-0006 V1.00 Typical Performance Data • • Test Conditions for Down Converter Application: RF = 1850 MHz (-10 dBm), IF = 140 MHz , LO = 1710 MHz (+5 dBm), LO Port match shown on page 2. Test Conditions for Up Converter Application:LO = 1710 MHz (+5 dBm), IF = 140 MHz (-10 dBm), RF = 1850 MHz LO Port match shown on page 2. CONVERSION LOSS (UP/DOWN) vs. FREQUENCY VSWR vs. FREQUENCY 5 4 9 VSWR Conversion Loss (dB) 10 3 LO 8 2 7 1700 1800 1900 RF 1 1700 2000 RF Frequency (MHz) TWO-TONE IMR vs. FREQUENCY 1900 2000 ISOLATION vs. FREQUENCY 70 11 Conversion Loss (dB) Two-Tone IMR (dB) 1800 RF and LO Frequency (MHz) two tones @ -10 dBm each 60 50 40 1700 1800 1900 10 9 8 7 1400 2000 1575 RF Frequency (MHz) 1750 1925 2100 RF Frequency (MHz) Wide-Band Performance Data Test Conditions for Wide-Band Application: RF = -10 dBm, IF = 140 MHz , LO = +11 dBm, LO Port resistively matched.Lower LO drive operation is available for narrow band performance using external reactive matching. The 3 dB IF bandwidth is 500 MHz. IF frequencies above 200 MHz can be optimized for low conversion loss by using external matching components. CONVERSION LOSS vs. FREQUENCY TWO-TONE IMR vs. FREQUENCY 75 Two-Tone IMR (dB) Conversion Loss (dB) 11 10 9 8 7 1400 1575 1750 1925 2100 RF Frequency (MHz) 60 45 30 1400 1575 1750 1925 2100 RF Frequency (MHz) Specifications Subject to Change Without Notice. M/A-COM Inc. 3 Low Cost MMIC Mixer MD54-0006 V1.00 Spurious Table (dBc) (n) 4x 38.3 41.3 45.4 64.7 57.0 27.3 39.9 52.5 77.1 78.7 21.4 30.1 69.0 43.0 68.3 10.5 30.1 70.5 58.8 76.8 2x 9.0 36.1 36.0 65.8 64.3 -0.9 36.4 45.8 75.0 78.0 1x 1.9 0 44.8 56.1 65.0 -6.0 0 55.5 75.2 78.3 X 8.1 45.5 56.8 72.9 X 8.3 54.4 72.3 74.3 0x 1x 2x 3x 4x H a 3x r m o n i c 0x of LO Harmonic of RF (m) The spurious table shows the spurious signals resulting from the mixing of the RF and LO input signals assuming down conversion. Mixing products are indicated relative to the IF. The lower frequency mixing term is shown for two different RF input levels. The upper number is for an RF input power of 0 dBm; the lower number is for an RF level of -10 dBm. |nFRF -mFLO|, (RF = 0 dBm) RF Frequency = 1850 MHz |nFRF - mFLO|, (RF = -10 dBm) LO Frequency = 1710 MHz Designer’s Kit MD54-0006SMB The MD54-0006SMB Designer's Kit allows for immediate evaluation of M/A-COM's MD54-0006. The Designer’s Kit consists of an MD54-0006, an evaluation board, and a floppy disk containing typical performance data and a DXF file of the recommended PCB layout. The evaluation board consists of the recommended external surface mount circuitry and RF connectors mounted to a multi-layer PCB. The MD54-0006SMB evaluation PCB is shown below with all functional ports labeled. Evaluation PCB + RF Connector Losses Port Reference Approximate RF Loss RF Port 0.30 dB @ 1850 MHz LO Port 0.20 dB @ 1710 MHz IF Port 0.075 dB @ 140 MHz RF LO IF SOT MIXER AV10046 MIXER PCB Specifications Subject to Change Without Notice. 4 M/A-COM Inc.