SRF-1016Z

Preliminary Data Sheet Product Description The Sirenza Microdevices’ SRF-1016 is a quadrature demodulator RFIC designed for UHF and microwave receiver IF applications. This device features switchable gain control, high P1dB, and excellent I/Q amplitude and phase balance. Use of this highly integrated device can result in lower component count, a more compact assembly, and higher transceiver card yields. The device is packaged in an industry standard 16 pin TSSOP with exposed paddle for superb RF and thermal ground. The matte tin finish on Sirenza’s lead-free package utilizes a post annealing process to mitigate tin whisker formation and is RoHS compliant per EU directive 2002/95. This package is also manufactured with green molding compounds that contain no antimony trioxide nor halogenated fire retardants. SRF-1016 SRF-1016Z Pb RoHS Compliant & Green Package 65 - 300 MHz Silicon Germanium IF Receiver 16 pin TSSOP with Exposed Ground Pad Package Footprint: 0.197 x 0.252 inches (5.0 x 6.4 mm) Package Height: 0.039 inches (1.0 mm) Product Features Functional Block Diagram BBIN BBIP VCC GC2 GC1 VEE VCC INP 1 2 3 4 5 6 7 8 16 15 BBQP BBQN VCC LOP LON VEE VCC INN • • • • Available in Lead Free, RoHS compliant, and Green packaging Gain control in 20dB steps Excellent I/Q amplitude and phase balance Output P1dB > +4 dBm over all gain settings 0/90 14 13 12 11 10 9 Applications • • • • • Digital and spread spectrum communication systems Cellular, PCS, DCS, 2G, 2.5G, 3G transceivers ISM band transceivers Point-to-point microwave receivers Broadband wireless systems Product Specifications – IF Input (Test conditions are on page 2) Parameters IF Frequency Range INP/INN Return Loss INP/INN Common mode voltage Gain Input P1dB DSB Noise Figure Gain Input P1dB DSB Noise Figure Gain Input P1dB DSB Noise Figure Low gain setting GC1 = GC2 = 0V Medium gain setting GC1 = +5V GC2 = 0V High gain setting GC1 = GC2 = +5V 50 ohm nominal differential input, Note 1 Internally generated Test Conditions Unit MHz dB V dB dBm dB dB dBm dB dB dBm dB -9 12 9 -8 28 -26 Min. 65 20 2 31 -24 11 12 -6 14.5 -6.5 14 31 -4 14 33 Typ. Max. 300 The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions. Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2006 Sirenza Microdevices, Inc. All worldwide rights reserved. 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 1 http://www.sirenza.com EDS 102092 Rev B Preliminary Data Sheet SRF-1016 SiGe IF Receiver Product Specifications – I/Q Output Parameters I/Q Output Frequency Range I/Q Output Amplitude Balance I/Q Output Phase Balance I/Q Output Common-mode Voltage I/Q Output Return Loss 50 ohm nominal differential output, Note 2 Additional Test Conditions Unit MHz dB deg V dB Min. DC -0.2 -2 2.5 20 Typ. Max. 500 0.2 2 Product Specifications – LO Input Parameters LO Frequency Range LO Input Level LO Return Loss 50 ohm nominal differential input, Note 1 Additional Test Conditions Unit MHz dBm dB Min. 65 -3 0 20 Typ. Max. 300 +3 Product Specifications – Miscellaneous Parameters Supply Voltage (VCC) Supply Current (ICC) Thermal Resistance GC1, GC2 Input VIL GC1, GC2 Input VIH GC1, GC2 Input Impedance Hot spot on die to lead Logic level zero Logic level one Additional Test Conditions Unit V mA ºC/W V V kohm 0 0.7xVCC 40 Min. +4.75 Typ. +5.0 195 35 45 0.3xVCC VCC Max. +5.25 Note 1: To achieve 20 dB of port match, the parasitic inductance of the package, board, and L4, L5 must be matched out at the center frequency with a series capacitor. Note 2: To achieve 20 dB port match above 100 MHz, the parasitic inductance of the package must be matched out. Test Conditions VCC = +5VDC, T = +25ºC, LO Input = 0dBm, 200 MHz, IF Input = 201 MHz Gain State Low Gain Medium Gain High Gain GC1 Voltage 0V +5V +5V GC2 Voltage 0V 0V +5V IF Power 0 dBm -20 dBm -40 dBm Absolute Maximum Ratings Parameters Supply Voltage LO Input IF Input Operating Temperature Storage Temperature Value 6.0 +10 +10 -40 to +85 -65 to +150 Unit VDC dBm dBm ºC ºC Part Number Ordering Information Number SRF-1016 SRF-1016Z Reel Size 7” 7” Devices/Reel 1000 1000 Caution: ESD Sensitive Appropriate precaution in handling, packaging and testing devices must be observed. Operation of this device beyond any one of these limits may cause permanent damage. For reliable continuous operation the device voltage and current must not exceed the maximum operating values specified in the product specifications table. 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 2 http://www.sirenza.com EDS102092 Rev B Preliminary Data Sheet SRF-1016 SiGe IF Receiver The Sirenza SRF-1016 is a variable gain I-Q demodulator designed for use in receiver IF sections, as shown in the figure below. It consists of five subcircuits: two cascaded switched gain stages, a matched pair of mixers, and a LO quadrature generator. This part is also available in a higher frequency version, the SRF-2016. The gain stages are broadband differential amplifiers each with a digital control pin to set the gain. The gain control pins act independently of each other. Since the amplifiers have approximately the same gain, setting GC1 high and GC2 low results in approximately the same gain as setting GC1 low and GC2 high. The former setting is preferred because it offers better noise figure. The IF input is differential with internal bias circuitry to set the common mode voltage. The use of blocking capacitors to facilitate AC coupling is highly recommended to avoid changing the common mode voltage. Either input may be driven singleended if the other input is connected to ground through an AC short such as a 1000 pF capacitor. This typically results in slightly lower input P1dB. The two matched mixers are configured with the quadrature LO generator to provide in-phase and quadrature baseband outputs. These can be fed through ADCs to a DSP engine, or can be fed into a low frequency 90 degree hybrid for image rejection. Alternatively, the IF signal can be extracted from the BBI port by injecting DC into the LO port. The LO and IF ports offer a differential 50 ohm impedance. The package (and in the case of the input port, the parallel L-R network) adds inductance that tends to degrade return loss. This can easily be matched out with a series capacitor. The 27 pF capacitor on the evaluation board is appropriate for 200 MHz operation; larger capacitors should be used for lower frequencies. The SRF-1016 has high gain at UHF frequencies, so instability can result if there is poor power supply decoupling or undesired coupling from the input to the output. The following considerations should be observed when laying out a PC board: • Follow the general layout of the evaluation board, keeping the power supply decoupling capacitors as close to the package as possible. • The back of the package, the two ground pins and the decoupling capacitors should connect directly to ground, preferably to a large dedicated ground plane. • Use the parallel L-R circuits on the input pins. • Ensure that the input signal tracks are routed far from the output tracks. • The Vcc pins are not internally connected, so all must be connected together externally with the specified decoupling capacitors. The figures on page 4 illustrate a typical SRF-1016’s performance with respect to temperature. Note that these numbers include the effect of the R-L network in the IF port. The frequency response of the IF and LO ports is dominated by the L-R network on the input. When de-embedded, the gain and P1dB response is within 0.5 dB from 65 MHz to 300 MHz. The SRF-1016 features immunity from changes in LO power. The gain typically changes by less than 0.6 dB over a 6 dB range of LO power. Also note the excellent I/Q balance, which typically falls within 0.1 dB and 1 degree from 65 MHz to 300 MHz, and varies less than 0.05 dB and 0.5 degree over temperature (-40 to +85C). The package dimensions are shown on page 5. Note that heat is removed from the part via the heat slug, so this slug must be properly soldered to a copper plane under the part. Evaluation boards are available for this device, and a description of the board is shown on page 6. Note that the evaluation board uses baluns on the I/Q outputs, and these baluns limit the low frequency response of the device. For true baseband operation, the baluns should be removed, and the differential signals used directly. LNA RF Filter IF Filter SRF 1016 BB Filter BB Filter I ADC Q ADC Typical use for the SRF-1016 in a receiver employing digital I/Q demodulation. 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 3 http://www.sirenza.com EDS102092 Rev B Preliminary Data Sheet SRF-1016 SiGe IF Receiver Gain vs. Temperature 35 30 25 20 Gain, dB 15 10 5 0 -5 -10 -40 -20 0 20 Temperature, C 40 60 80 5 -40 -20 Output P1dB, dBm 9 10 Output P1dB vs. Temperature Low Gain Med Gain High Gain 8 Low Gain Med Gain High Gain 7 6 0 20 Temperature, C 40 60 80 Noise Figure vs. Temperature 35 30 9 25 Output P1dB, dBm Noise Figure, dB 20 15 10 5 0 -40 -20 0 20 Temperature, C 40 60 80 5 -4 -3 -2 Low Gain Med Gain High Gain 8 10 Output P1dB vs. LO Power Low Gain Med Gain High Gain 7 6 -1 0 1 2 3 4 LO Power, dBm Amplitude Difference vs. LO Frequency 0.4 0.3 Phase Difference vs. LO Frequency 92 91.5 Phase Difference, degrees 0 100 200 300 400 500 600 700 800 Amplitude Difference, dB 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 LO Frequency, MHz 91 90.5 90 89.5 89 0 100 200 300 400 500 600 700 800 LO Frequency, MHz Unless otherwise stated, measurements were taken with an IF frequency of 200 MHz, an LO frequency of 201 MHz, a baseband output of 1 MHz, an LO power of 0 dBm, at room temperature, with a supply voltage of 5 volts. Measurements were done on the evaluation board. 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 4 http://www.sirenza.com EDS102092 Rev B Preliminary Data Sheet SRF-1016 SiGe IF Receiver Package Dimensions Suggested PCB Pad Layout Dimensions in inches (mm) 0.193 (4.9) 0.207 (5.25) 0.004 (0.1) 0.008 (0.2) 0.018 (0.45) 0.030 (0.75) 0.049 (1.25) 0.012 (0.30) 0.118 (3.0) 0.024 (0.63) XXX XXXX LOT ID EXPOSED THERMAL PAD ZONE 0.118 (3.0) SQ. 0.252 (6.4) 0.169 (4.3) 0.177 (4.5) Part # 0.014 (0.35) Lot # 0.118 (3.0) φ0.010 (0.25) via 0.028 (0.7) NOTES: 1. PACKAGE BODY SIZES EXCLUDE MOLD FLASH 0.031 (0.8) PROTRUSIONS OR GATE BURRS. 0.041 (1.05) 2. TOLERANCE ±0.1MM UNLESS OTHERWISE SPECIFIED. 3. COPLANARITY: 0.1MM 0.0 4. CONTROLLING DIMENSION IS MILLIMETER, 0.006 (0.15) CONVERTED INCH DIMENSIONS ARE NOT NECESSARILY EXACT. 5. FOLLOWED FROM JEDEC MO-153. 0° 8° 0.035 (0.9) 0.272 (6.9) all units are in inches (mm) - vias connect pad to underlying ground plane 0.026 (.65) 0.007 (0.19) 0.012 (0.30) - Indicates metalization Pin Out Description Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Function BBIN BBIP VCC GC2 GC1 VEE VCC INP INN VCC VEE LON LOP VCC BBQN BBQP Description Baseband I-axis output (-) Baseband I-axis output (+) Positive power supply Gain control input, stage 2 Gain control input, stage 1 Ground Positive power supply IF input (+) IF input (-) Positive power supply Ground LO input (-) LO input (+) Positive power supply Baseband Q-axis output (-) Baseband Q-axis output (+) self-biasing self-biasing self-biasing; AC-couple self-biasing; AC-couple self-biasing; AC-couple self-biasing; AC-couple 5V CMOS levels 5V CMOS levels self-biasing self-biasing Additional Comments 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 5 http://www.sirenza.com EDS102092 Rev B Preliminary Data Sheet SRF-1016 SiGe IF Receiver Demo Test Board Schematic Tuned for operation at 200 MHz. Fully Assembled PCB Bill of Materials Component Designator U1 J1, J6, J7 J2, J3, J4, J5 T1, T2 T3, T4 C1 C2, C3 C4, C5 C9 C6, C7, C8 C10, C11, C12, C13 L1, L2, L3 R1, R2 R3, R4 R5, R6 L4, L5 1 uF 27 pF 68 pF 100 pF 22 pF 220 pF 1 uH 1 kOhm 0 Ohm 50 Ohm 10 nH Value Qty 1 3 4 2 2 1 2 2 1 3 4 5 2 2 2 2 1 SMDI Sullins Johnson Components Mini-Circuits Mini-Circuits Venkel Venkel Venkel Venkel Venkel Venkel Panasonic Venkel Venkel Venkel Toko SMDI Vendor Part Number SRF-1016 S1312-02-ND 142-0701-851 TC1-1 ADT1-6T C1206Y5V160-105ZNE IF receiver 2 pin 0.1” header SMA end launch connector IF Transformer Baseband Transformer 1206 size supply bypass capacitor Description C0603COG500-270JNE 0603 size coupling capacitor C0603COG500-680JNE 0603 size coupling capacitor C0603COG500-101JNE 0603 size bypass capacitor C0603COG500-220JNE 0603 size bypass capacitor C0603COG500-221JNE 0603 size filter capacitor PCD1008TR-ND CR0603-16W-102JT CR0603-16W-000T CR0603-16W-500JT LL1608 FS10NJ ECB-102274 1210 size filter inductor 0603 size pull-up resistor 0603 jumper 0603 size stability resistor 0603 size stability inductor Evaluation Board 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 6 http://www.sirenza.com EDS102092 Rev B