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. SRF-1016 SRF-1016Z Pb RoHS Compliant & Green Package 65 - 300 MHz Silicon Germanium IF Receiver 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. 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 1 BBIP 2 VCC 3 GC2 16 15 BBQN 14 VCC 4 13 LOP GC1 5 12 LON VEE 6 11 VEE VCC 7 10 VCC INP 8 9 INN 0/90 • • • BBQP 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 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 Test Conditions IF Frequency Range Unit Min. MHz 65 Typ. 300 INP/INN Return Loss 50 ohm nominal differential input, Note 1 dB 20 INP/INN Common mode voltage Internally generated V 2 Gain Input P1dB High gain setting GC1 = GC2 = +5V dB 28 31 dBm -26 -24 12 DSB Noise Figure dB Gain Medium gain setting GC1 = +5V GC2 = 0V dB 9 dBm -8 dB -9 -6.5 Low gain setting GC1 = GC2 = 0V dBm 12 14 Input P1dB DSB Noise Figure Input P1dB DSB Noise Figure dB 33 11 dB Gain Max. 14 -6 14.5 -4 31 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 Unit Min. I/Q Output Frequency Range Parameters Additional Test Conditions MHz DC 500 I/Q Output Amplitude Balance dB -0.2 0.2 I/Q Output Phase Balance deg -2 2 I/Q Output Common-mode Voltage I/Q Output Return Loss 50 ohm nominal differential output, Note 2 Typ. V 2.5 dB 20 Max. Product Specifications – LO Input Unit Min. LO Frequency Range Parameters Additional Test Conditions MHz 65 LO Input Level dBm -3 LO Return Loss 50 ohm nominal differential input, Note 1 Typ. Max. 300 0 dB +3 20 Product Specifications – Miscellaneous Parameters Additional Test Conditions Supply Voltage (VCC) Supply Current (ICC) Unit Min. Typ. Max. V +4.75 +5.0 +5.25 mA 195 Thermal Resistance Hot spot on die to lead ºC/W GC1, GC2 Input VIL Logic level zero V 0 0.3xVCC GC1, GC2 Input VIH Logic level one V 0.7xVCC VCC kohm 40 GC1, GC2 Input Impedance 35 45 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 GC1 Voltage GC2 Voltage Low Gain Gain State 0V 0V IF Power 0 dBm Medium Gain +5V 0V -20 dBm High Gain +5V +5V -40 dBm Value Unit Number Reel Size Supply Voltage 6.0 VDC SRF-1016 7” 1000 LO Input +10 dBm SRF-1016Z 7” 1000 Part Number Ordering Information Absolute Maximum Ratings Parameters IF Input +10 dBm Operating Temperature -40 to +85 ºC Storage Temperature -65 to +150 ºC 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 Devices/Reel Caution: ESD Sensitive Appropriate precaution in handling, packaging and testing devices must be observed. 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. LNA RF Filter IF Filter SRF 1016 BB Filter I ADC BB Filter Q ADC 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. 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 Output P1dB vs. Temperature Gain vs. Temperature 10 35 30 9 Gain, dB 20 Low Gain 15 Med Gain 10 High Gain 5 Output P1dB, dBm 25 0 8 Low Gain Med Gain High Gain 7 6 -5 5 -10 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 Temperature, C Temperature, C Noise Figure vs. Temperature Output P1dB vs. LO Power 35 10 30 9 Low Gain 20 Med Gain 15 High Gain 10 Output P1dB, dBm Noise Figure, dB 25 8 Low Gain Med Gain High Gain 7 6 5 0 5 -40 -20 0 20 40 60 80 -4 -3 -2 -1 Temperature, C 0 1 2 3 4 LO Power, dBm Phase Difference vs. LO Frequency Amplitude Difference vs. LO Frequency 0.4 92 0.3 Phase Difference, degrees Amplitude Difference, dB 91.5 0.2 0.1 0 -0.1 -0.2 91 90.5 90 89.5 -0.3 89 -0.4 0 100 200 300 400 500 600 700 800 0 LO Frequency, MHz 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) 0.049 (1.25) 0.018 (0.45) 0.030 (0.75) 0.012 (0.30) XXX XXXX LOT ID 0.118 (3.0) EXPOSED THERMAL PAD ZONE 0.118 (3.0) SQ. 0.024 (0.63) 0.252 (6.4) Part # 0.169 (4.3) 0.177 (4.5) 0.014 (0.35) Lot # 0.118 (3.0) φ0.010 (0.25) via 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. 0.035 (0.9) 0° 8° - Indicates metalization 0.007 (0.19) 0.012 (0.30) 0.026 (.65) 0.028 (0.7) 0.272 (6.9) all units are in inches (mm) - vias connect pad to underlying ground plane Pin Out Description Pin # Function 1 BBIN Baseband I-axis output (-) Description self-biasing 2 BBIP Baseband I-axis output (+) self-biasing 3 VCC Positive power supply 4 GC2 Gain control input, stage 2 5V CMOS levels 5 GC1 Gain control input, stage 1 5V CMOS levels 6 VEE Ground 7 VCC Positive power supply 8 INP IF input (+) self-biasing; AC-couple 9 INN IF input (-) self-biasing; AC-couple 10 VCC Positive power supply 11 VEE Ground 12 LON LO input (-) self-biasing; AC-couple 13 LOP LO input (+) self-biasing; AC-couple 14 VCC Positive power supply 15 BBQN Baseband Q-axis output (-) self-biasing 16 BBQP Baseband Q-axis output (+) self-biasing 303 South Technology Court Broomfield, CO 80021 Additional Comments 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 Value Qty Vendor Part Number Description U1 1 SMDI SRF-1016 IF receiver J1, J6, J7 3 Sullins S1312-02-ND 2 pin 0.1” header 4 Johnson Components 142-0701-851 SMA end launch connector IF Transformer J2, J3, J4, J5 T1, T2 2 Mini-Circuits TC1-1 T3, T4 2 Mini-Circuits ADT1-6T Baseband Transformer 1206 size supply bypass capacitor C1 1 uF 1 Venkel C1206Y5V160-105ZNE C2, C3 27 pF 2 Venkel C0603COG500-270JNE 0603 size coupling capacitor C4, C5 68 pF 2 Venkel C0603COG500-680JNE 0603 size coupling capacitor C9 100 pF 1 Venkel C0603COG500-101JNE 0603 size bypass capacitor C6, C7, C8 22 pF 3 Venkel C0603COG500-220JNE 0603 size bypass capacitor C10, C11, C12, C13 220 pF 4 Venkel C0603COG500-221JNE 0603 size filter capacitor L1, L2, L3 1 uH 5 Panasonic PCD1008TR-ND 1210 size filter inductor R1, R2 1 kOhm 2 Venkel CR0603-16W-102JT 0603 size pull-up resistor R3, R4 0 Ohm 2 Venkel CR0603-16W-000T 0603 jumper R5, R6 50 Ohm 2 Venkel CR0603-16W-500JT 0603 size stability resistor L4, L5 10 nH 2 Toko LL1608 FS10NJ 0603 size stability inductor 1 SMDI ECB-102274 Evaluation Board 303 South Technology Court Broomfield, CO 80021 Phone: (800) SMI-MMIC 6 http://www.sirenza.com EDS102092 Rev B