CV211-1AF

CV211-1A Product Features • High dynamic range downconverter with integrated LO and IF amplifiers The Communications Edge TM Product Information PCS/DCS-band Dual-Branch Downconverter Product Description The CV211-1A is a dual-channel high-linearity downconverter designed to meet the demanding performance, functionality, and cost goals of current and next generation mobile infrastructure basestations. It provides high dynamic range performance in a low profile surface-mount leadless package that measures 6 x 6 mm square. It is ideally suited for high dynamic range receiver front ends using diversity receive channels. Functionality includes frequency conversion and IF amplification, while an integrated LO driver amplifier powers the passive mixer. The MCM is implemented with reliable and mature GaAs MESFET and InGaP HBT technology. Typical applications include frequency downconversion used in PCS/DCS 2.5G and 3G mobile base transceiver stations. Functional Diagram AMP1 INPUT IF1 OUTPUT 23 GND MIXER IF1 GND 28 RF 1 1 INPUT GND 2 BIAS 3 GND 4 GND 5 GND 6 RF 2 7 INPUT 27 GND 26 25 24 • • • • • • • • • Dual channels for diversity +29.5 dBm Input IP3 +10 dBm Input P1dB RF: 1700 – 2000 MHz IF: 65 – 250 MHz +5V Single supply operation Pb-free 6mm 28-pin QFN package Low-side LO configuration Common footprint with other UMTS/cellular versions RF IF IF Amp 1 GND 22 21 BIAS 20 GND 19 GND 18 GND 17 LO 16 GND 15 GND 14 GND LO Driver Amp IF Amp 2 RF 8 GND 9 MIXER IF2 IF 10 GND 11 AMP2 INPUT 12 GND 13 IF2 OUTPUT Top View Specifications (1) Parameters RF Frequency Range LO Frequency Range IF Frequency Range % Bandwidth around IF center frequency IF Test Frequency SSB Conversion Gain Gain Drift over Temp (-40 to 85 °C) Input IP3 Input IP2 Input 1 dB Compression Point Noise Figure LO Input Drive Level LO-RF Isolation LO-IF Isolation Branch-Branch Isolation Return Loss: RF Port Return Loss: LO Port Return Loss: IF Port Operating Supply Voltage Supply Current Thermal Resistance Junction Temperature Units MHz MHz MHz % MHz dB dB dBm dBm dBm dB dBm dB dB dB dB dB dB V mA °C / W °C Min Typ 1700 – 2000 1450 – 1935 65 – 250 ±7.5 240 10 ±0.5 +29.5 +38 +10 10.5 0 8 32 45 18 15 14 +5 380 Max Comments See note 2 See note 3 12 +1.5 Temp = 25 °C Referenced to +25 °C See note 4 See note 4 See note 4 See note 5 PLO = 0 dBm PLO = 0 dBm 8 -1.5 +25 +33 -2.5 +2.5 320 475 27 160 See note 6 1. Specifications when using the application specific circuit (shown on page 3) with a low side LO = 0 dBm and IF = 240 MHz in a downconverting application at 25 °C. 2. IF matching components affect the center IF frequency. Proper component values for other IF center frequencies than shown can be provided by emailing to applications.engineering@wj.com. 3. The IF bandwidth of the converter is defined as 15% around any center frequency in its operating IF frequency range. The bandwidth is determined with external components. Specifications are valid around the total ±7.5% bandwidth. ie. with a center frequency of 240 MHz, the specifications are valid from 240 ± 18 MHz. 4. Assumes the supply voltage = +5 V. IIP3 is measured with Δf = 1 MHz with RFin = -5 dBm / tone. 5. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies. 6. The maximum junction temperature ensures a minimum MTTF rating of 1 million hours of usage. Absolute Maximum Rating Parameter Operating Case Temperature Storage Temperature DC Voltage Junction Temperature -40 to +85 °C -55 to +150 °C +5.5 V +220 °C Rating Ordering Information Part No. CV211-1AF Description PCS/DCS-band Dual-Branch Downconverter (lead-free/RoHS-compliant QFN Pkg) CV211-1APCB240 Fully Assembled Eval. Board, IF = 240MHz Specifications and information are subject to change without notice Operation of this device above any of these parameters may cause permanent damage. WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 1 of 6 December 2005 CV211-1A AMP1 INPUT IF1 OUTPUT GND MIXER IF1 GND 28 RF 1 1 INPUT GND 2 BIAS 3 GND 4 N/C 5 GND 6 RF 2 7 INPUT 27 GND 26 25 24 23 GND 22 21 BIAS The Communications Edge TM Product Information PCS/DCS-band Dual-Branch Downconverter Device Architecture / Application Circuit Information IF IF Amp 1 Typical Downconverter Performance Chain Analysis (Each Branch) 20 GND 19 N/C 18 GND RF Stage LO Amp / MMIC Mixer IF Amplifier CV211-1A Gain (dB) -8 18 Input P1dB (dBm) Input IP3 (dBm) NF (dB) Current (mA) 80 150 380* Gain (dB) LO Driver Amp IF Amp 2 RF 8 GND 9 MIXER IF2 17 LO 16 GND 15 N/C 17.5 35 8.5 3.0 23 2.2 Cumulative Performance Cumulative Performance Input Input NF P1dB IP3 (dB) (dBm) (dBm) -8 17.5 35.0 8.5 10 10.1 29.5 10.5 10 +10.1 +29.5 10.5 IF 10 GND 11 AMP2 INPUT 12 GND 13 IF2 OUTPUT 14 GND * The 2nd branch includes another mixer and IF amplifier, which increases the total current consumption of the MCM to be 380 mA. Printed Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness CV211-1A: The application circuit can be broken up into three main functions as denoted in the colored dotted areas above: RF/IF diplexing (blue), IF amplifier matching (green), and dc biasing (purple). There are various placeholders for chip components in the circuit schematic so that a common PCB can be used for all WJ dual-branch converters. Further details are given in the Application Note located on the website titled “CV2xx Series - PWB Design Guidelines”. External Diplexer: This is only used with the cellular-band CV products. The mixer performs the diplexing internally for the CV211-1A; therefore the components shown in the diplexer section should be not be loaded except for L3, L10, L7, and L11, which should contain a 0 Ω jumper. IF Amplifier Matching: The IF amplifier requires matching elements to optimize the performance of the amplifier to the desired IF center frequency. Since IF bandwidths are typically on the order of 5 to 10%, a simple two element matching network, in the form of either a high-pass or low-pass filter structure, is sufficient to match the MMIC IF amplifier over these narrow bandwidths. Proper component values for other IF center frequencies can be provided by emailing to applications.engineering@wj.com. DC biasing: DC bias must be provided for the LO and IF amplifiers in the converter. R1 sets the operating current for the last stage of the LO amplifier and is chosen to optimize the mixer LO drive level. Proper RF chokes and bypass capacitors are chosen for proper amplifier biasing at the intended frequency of operation. The “+5 V” dc bias should be supplied directly from a voltage regulator. Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 2 of 6 December 2005 CV211-1A The Communications Edge TM Product Information PCS/DCS-band Dual-Branch Downconverter Application Circuit: IF = 240 MHz (CV211-1APCB240) Bill of Materials Ref. Desig. R1 R2, R3, R4, L3, L7 L10, L11 R6, R7 C1, C5, C10, C15 C4, C11 C6, C12, C14 C7, C13 L1 L4, L8 L5, L9 C2, C3, C8, C9, C16 C17, C19, C20, C21 C22, L2, L6 U1 Component 13 Ω chip resistor 0 Ω chip resistor 2.2 Ω chip resistor 1000 pF chip capacitor 3.9 pF chip capacitor .01 μF chip capacitor 100 pF chip capacitor 120 nH chip inductor 56 nH chip inductor 220 nH chip inductor Do Not Place CV211-1AF WJ Converter QFN Size 0805 0603 0603 0603 0603 0603 0603 0603 0603 0805 PCB Layout Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 3 of 6 December 2005 CV211-1A Conversion Gain vs IF Frequency LO = 0 dBm, 1640 MHz The Communications Edge TM Product Information PCS/DCS-band Dual-Branch Downconverter CV211-1APCB240 Application Circuit Performance Plots Input IP3 vs IF Frequency LO = 0 dBm, 1640 MHz Input IP2 vs IF Frequency LO = 0 dBm, 1640 MHz Conversion Gain (dB) 12 Input IP3 (dBm) 11 10 9 8 7 215 -40 deg C +25 deg C +85 deg C 34 32 30 28 26 24 265 215 -40 deg C +25 deg C +85 deg C 42 Input IP2 (dBm) 40 38 36 34 32 265 215 -40 deg C +25 deg C +85 deg C 225 235 245 255 225 235 245 255 225 235 245 255 265 IF Frequency (MHz) Conversion Gain vs RF Frequency 25 deg C, IF = 240 MHz IF Frequency (MHz) Input IP3 vs RF Frequency 25 deg C, IF = 240 MHz IF Frequency (MHz) Input IP2 vs RF Frequency 25 deg C, IF = 240 MHz, low-side LO Conversion Gain (dB) 12 Input IP3 (dBm) 11 10 9 8 7 1700 1750 1800 1850 LO = -2.5 dBm LO = 0 dBm LO = 2.5 dBm 34 32 30 28 26 24 1700 1750 1800 1850 LO = -2.5 dBm LO = 0 dBm LO = 2.5 dBm 42 Input IP2 (dBm) 40 38 36 34 32 1700 1750 1800 1850 LO = -2.5 dBm LO = 0 dBm LO = 2.5 dBm 1900 1950 2000 1900 1950 2000 1900 1950 2000 RF Frequency (MHz) Conversion Gain vs RF Frequency LO = 0 dBm, IF = 240 MHz, low-side LO RF Frequency (MHz) Input IP3 vs RF Frequency LO = 0 dBm, IF = 240 MHz, low-side LO RF Frequency (MHz) Input IP2 vs RF Frequency LO = 0 dBm, IF = 240 MHz, low-side LO Conversion Gain (dB) 12 Input IP3 (dBm) 11 10 9 8 7 1700 -40 deg C +25 deg C +85 deg C 34 32 30 28 26 24 1700 -40 deg C +25 deg C +85 deg C 42 Input IP2 (dBm) 40 38 36 34 32 1700 -40 deg C +25 deg C +85 deg C 1750 1800 1850 1900 1950 2000 1750 1800 1850 1900 1950 2000 1750 1800 1850 1900 1950 2000 RF Frequency (MHz) Conversion Gain vs RF Frequency 25 deg C, LO = 0 dBm, IF = 240 MHz, low-side LO RF Frequency (MHz) Input IP3 vs RF Frequency 25 deg C, LO = 0 dBm, IF = 240 MHz, low-side LO RF Frequency (MHz) Input IP2 vs RF Frequency 25 deg C, LO = 0 dBm, IF = 240 MHz, low-side LO 12 Conversion Gain (dB) 11 10 9 8 7 1700 1750 1800 1850 1900 Input IP3 (dBm) 34 32 30 28 26 24 1700 1750 1800 1850 1900 Input IP2 (dBm) 42 40 38 36 34 32 1700 1750 1800 1850 1900 Vdd = 4.9 V Vdd = 5.0 V Vdd = 5.1 V 1950 2000 Vdd = 4.9 V Vdd = 5.0 V Vdd = 5.1 V 1950 2000 Vdd = 4.9 V Vdd = 5.0 V Vdd = 5.1 V 1950 2000 RF Frequency (MHz) RF Frequency (MHz) RF Frequency (MHz) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 4 of 6 December 2005 CV211-1A The Communications Edge TM Product Information PCS/DCS-band Dual-Branch Downconverter CV211-1APCB240 Application Circuit Performance Plots (cont’d) L-I Isolation vs LO Frequency Referenced with LO = 0 dBm L-R Isolation vs LO Frequency Referenced with LO = 0 dBm 40 35 30 25 20 15 1400 -40 deg C +25 deg C +85 deg C 25 L-R Isolation (dB) 20 15 10 5 0 1400 -40 deg C +25 deg C +85 deg C L-I Isolation (dB) 1500 1600 1700 1800 1900 2000 1500 1600 1700 1800 1900 2000 LO Frequency (MHz) IF Return Loss vs IF Frequency 25° C LO Frequency (MHz) RF Return Loss vs RF Frequency 25° C LO Return Loss vs LO Frequency 25° C 0 Return Loss (dB) Return Loss (dB) 5 10 15 20 25 30 215 225 235 245 255 265 0 5 10 15 20 25 30 1700 1750 1800 1850 1900 1950 2000 Return Loss (dB) 0 5 10 15 20 25 30 1400 1500 1600 1700 1800 1900 2000 IF Frequency (MHz) Noise Figure vs Temperature RF Frequency (MHz) Input P1dB vs Temperature LO Frequency (MHz) RF = 1880 MHz, IF = 240 MHz, LO = 0 dBm @1640 MHz RF = 1880 MHz, IF = 240 MHz, LO = 0 dBm @1640 MHz 14 12 10 8 6 4 -40 -20 0 20 40 60 80 Input P1dB (dBm) Noise Figure (dB) 14 12 10 8 6 4 -40 -20 0 20 40 60 80 Temperature (°C) Temperature (°C) Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • W eb site: www.wj.com Page 5 of 6 December 2005 CV211-1A The Communications Edge TM Product Information PCS/DCS-band Dual-Branch Downconverter This package is lead-free/RoHS-compliant. It is compatible with both lead-free (maximum 260°C reflow temperature) and leaded (maximum 245°C reflow temperature) soldering processes. The plating material on the pins is annealed matte tin over copper. CV211-1AF Mechanical Information Outline Drawing Product Marking The component will be lasermarked with a “CV211-1AF” product label with an alphanumeric lot code on the top surface of the package. Tape and reel specifications for this part will be located on the website in the “Application Notes” section. ESD / MSL Information ESD Rating: Value: Test: Standard: ESD Rating: Value: Test: Standard: Class 1B Passes 500V to