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| MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MRFIC2001/D The MRFIC Line 900 MHz Downconverter (LNA/Mixer) The MRFIC2001 is an integrated downconverter designed for receivers operating in the 800 MHz to 1.0 GHz frequency range. The design utilizes Motorola's advanced MOSAIC 3 silicon bipolar RF process to yield superior performance in a cost effective monolithic device. Applications for the MRFIC2001 include CT-1 and CT-2 cordless telephones, remote controls, video and audio short range links, low cost cellular radios, and ISM band receivers. A power down control is provided to minimize current drain with minimum recovery/turn-on time. * Conversion Gain = 23 dB (Typ) * Supply Current = 4.7 mA (Typ) * Power Down Supply Current = 2.0 A (Max) * Low LO Drive = -10 dBm (Typ) * LO Impedance Insensitive to Power Down * No Image Filtering Required * No Matching Required for RF IN Port * All Ports are Single Ended * Order MRFIC2001R2 for Tape and Reel. R2 suffix = 2,500 Units per 12 mm, 13 inch Reel. * Device Marking = M2001 MRFIC2001 900 MHz DOWNCONVERTER LNA/MIXER SILICON MONOLITHIC INTEGRATED CIRCUIT CASE 751-05 (SO-8) ABSOLUTE MAXIMUM RATINGS (TA = 25C unless otherwise noted) Rating Supply Voltage Control Voltage Input Power, RF and LO Ports Operating Ambient Temperature Storage Temperature Symbol VCC ENABLE PRF, PLO TA Tstg Value 5.5 5.0 +10 - 35 to + 85 - 65 to +150 Unit Vdc Vdc dBm C C RF IN 1 LNA 8 ENABLE GND 2 7 VCC GND 3 6 GND LO IN 4 5 IF OUT/VCC Pin Connections and Functional Block Diagram REV 2 (c)MOTOROLA RF DEVICE DATA Motorola, Inc. 1994 MRFIC2001 1 RECOMMENDED OPERATING RANGES Parameter Supply Voltage Range Control Voltage Range RF Port Frequency Range IF Port Frequency Range Symbol VCC ENABLE fRF fIF Value 2.7 to 5.0 0 to 5.0 500 to 1000 0 (dc) to 250 Unit Vdc Vdc MHz MHz ELECTRICAL CHARACTERISTICS (VCC, ENABLE = 3.0 V, TA = 25C, RF @ 900 MHz, LO @ 1.0 GHz, PLO = -7.0 dBm, IF @ 100 MHz unless otherwise noted) Characteristic (1) Supply Current: On-Mode Supply Current: Off-Mode (ENABLE < 1.0 Volts) ENABLE Response Time Conversion Gain Input Return Loss (RF IN Port) Single Sideband Noise Figure Input 3rd Order Intercept Point Output Power at 1.0 dB Gain Compression LO - RF Isolation (1.0 GHz) LO - IF Isolation (1.0 GHz) RF - IF Isolation (900 MHz) RF - LO Isolation (900 MHz) Min -- -- -- 20 -- -- - 26 -- -- -- -- -- Typ 4.7 0.1 1.0 23 13 5.5 - 22.5 -10 37 33 4.0 19 Max 5.5 2.0 -- 26 -- -- -- -- -- -- -- -- Unit mA A s dB dB dB dBm dBm dB dB dB dB NOTE: 1. All Electrical Characteristics measured in test circuit schematic shown in Figure 1 below: C3 RF IN 50 C1 1 8 + ENABLE - L3 2 D.U.T. 3 LO IN 50 C2 L1 4 5 L2 + VCC - 6 C6 IF OUT 50 7 C4 C5 + VCC - C7 C8 C1, C2, C4, C7 -- 100 pF Chip Capacitor C3, C5, C8 -- 1000 pF Chip Capacitor C6 -- 6.8 pF Chip Capacitor L1 -- 8.2 nH Chip Inductor L2 -- 270 nH Chip Inductor L3 -- 150 nH Chip Inductor RF Connectors -- SMA Type Board Material -- Epoxy/Glass r = 4.5, Dielectric Thickness = 0.014 (0.36 mm) Figure 1. Test Circuit Configuration MRFIC2001 2 MOTOROLA RF DEVICE DATA 30 TA = - 35C GC , CONVERSION GAIN (dB) 28 25C 26 85C 24 VCC = 3 V fIF = 100 MHz HIGH SIDE LO INJECTION PLO = -7 dBm 22 20 500 600 700 800 900 1000 fRF, RF FREQUENCY (MHz) Figure 3. Conversion Gain versus RF Frequency 1.2 ZRF 0.9 f = 0.5 GHz 1.2 0.9 f = 0.5 GHz Zo = 50 0.05 ZIF 0.25 GC , CONVERSION GAIN (dB) 33 VCC = 5 V 4V 30 36 ZLO TA = 25C fIF = 100 MHz HIGH SIDE LO INJECTION PLO = -7 dBm 27 3V 24 21 500 600 700 800 900 1000 fRF, RF FREQUENCY (MHz) Figure 2. Port Impedances versus Frequency (GHz) IF VCC (Volts) 3.0 f (MHz) 50 100 150 200 250 500 600 700 800 900 1000 1100 1200 Mag M 0.998 0.996 0.993 0.990 0.987 -- -- -- -- -- -- -- -- Degrees - 2.5 - 4.9 - 7.2 -10 -12 -- -- -- -- -- -- -- -- Figure 4. Conversion Gain versus RF Frequency RF Mag M -- -- -- -- -- 0.36 0.32 0.29 0.26 0.23 0.20 0.18 0.17 Degrees -- -- -- -- -- -70 -70 - 69 - 68 - 63 - 58 - 51 - 44 Mag M -- -- -- -- -- 0.58 0.55 0.53 0.51 0.50 0.49 0.47 0.45 LO Degrees -- -- -- -- -- - 31 - 36 - 42 - 48 - 54 - 61 - 68 - 76 Table 1. Port Reflection Coefficients (ENABLE = 3.0 V, Zo = 50 , TA = 25C) MOTOROLA RF DEVICE DATA MRFIC2001 3 TYPICAL CHARACTERISTICS 25 TA = - 35C GC , CONVERSION GAIN (dB) 30 VCC = 5 V GC , CONVERSION GAIN (dB) 24 28 4V 26 23 25C 22 85C 21 20 -15 VCC = 3 V fRF = 900 MHz fLO = 1 GHz -12 - 9.0 - 6.0 - 3.0 0 24 3V 22 20 -15 TA = 25C fRF = 900 MHz fLO = 1 GHz -12 - 9.0 - 6.0 - 3.0 0 PLO, LO INPUT POWER (dBm) PLO, LO INPUT POWER (dBm) Figure 5. Conversion Gain versus LO Input Power Figure 6. Conversion Gain versus LO Input Power IIP3, INPUT 3RD ORDER INTERCEPT PT (dBm) IIP3, INPUT 3RD ORDER INTERCEPT PT (dBm) - 20 -19 VCC = 5 V 4V - 21 3V - 23 - 22 TA = 85C - 24 25C - 26 - 35C - 25 - 28 VCC = 3 V - 30 500 600 700 800 900 1000 - 27 TA = 25C - 29 500 600 700 800 900 1000 fRF, RF FREQUENCY (MHz) fRF, RF FREQUENCY (MHz) Figure 7. Input Third Order Intercept Point versus RF Frequency Figure 8. Input Third Order Intercept Point versus RF Frequency 7.0 NF, NOISE FIGURE (dB) NF, NOISE FIGURE (dB) 6.0 TA = 25C IM = 30 HIGH SIDE LO INJECTION fIF = 100 MHz PLO = -7 dBm VCC = 3 V 8.0 TA = 25C IM = 30 fRF = 900 MHz fLO = 1 GHz VCC = 3 V 7.0 6.0 5.0 4V 4.0 5V 3.0 750 5.0 4V 4.0 5V 3.0 -10 800 850 900 950 1000 - 8.0 - 6.0 - 4.0 - 2.0 0 2.0 4.0 fRF, RF FREQUENCY (MHz) PLO, LO INPUT POWER (dBm) Figure 9. Noise Figure versus RF Frequency Figure 10. Noise Figure versus LO Input Power MRFIC2001 4 MOTOROLA RF DEVICE DATA TYPICAL CHARACTERISTICS 8.0 7.0 6.0 7.0 NF, NOISE FIGURE (dB) VCC = 3 V 6.0 4V 5.0 5V 4.0 -180 -120 - 60 0 60 TA = 25C fRF = 900 MHz PLO = -7 dBm fLO = 1 GHz 120 180 ICC, SUPPLY CURRENT (mA) 5.0 4.0 - 35C 3.0 2.0 1.0 0 0 1.0 2.0 3.0 4.0 5.0 ENABLE, ENABLE VOLTAGE (VOLTS) TA = 85C VCC = 3 V 25C IM, REFLECTION COEFFICIENT PHASE ANGLE OF RF PORT IMAGE TERMINATION () Figure 11. Noise Figure versus Reflection Coefficient Phase Angle of RF Port Image Termination 12 TA = 25C 10 ICC, SUPPLY CURRENT (mA) 8.0 4V 6.0 3V 4.0 2.0 0 0 1.0 2.0 VCC = 5 V Figure 12. Supply Current versus Enable Voltage 3.0 4.0 5.0 ENABLE, ENABLE VOLTAGE (VOLTS) Figure 13. Supply Current versus Enable Voltage APPLICATIONS INFORMATION DESIGN PHILOSOPHY The MRFIC2001 was designed for low cost, small size, and ease of use. This is accomplished by minimizing the number of necessary external components. The most significant external component eliminated was an image filter between the LNA and mixer. It was found the ensuing image noise entering the mixer from the LNA could be minimized by optimizing the LNA input termination at the image frequency. Also, a double-balanced mixer was used to reject the IF noise from the LNA. This results in excellent LO and spurious rejection. To eliminate the need for external baluns or decoupling elements, the unused LO and RF ports of the mixer are decoupled internally. Only one of the IF outputs is used, eliminating the need for an external balun on the IF port as well. Also, the LNA input is matched to 50 ohms internally. External matching is required for the LO and IF ports. To minimize current drain in various TDD/TDMA systems, the MRFIC2001 has a TTL/CMOS compatible enable pin. THEORY OF OPERATION Optimizing the LNA input termination to minimize image noise is quite simple. The optimum LNA input (RF IN pin) termination is 130 at the image frequency (regardless of what the image frequency is). A reflection coefficient magnitude close to 1 is automatically obtained from a front-end filter, since the image frequency would be in the stop-band. The 30 phase angle can be obtained by rotating the phase angle of the front-end filter with a series 50 ohm transmission line. The dependance of single-sideband noise figure on the image phase angle is shown in Figure 11. As the plot indicates, there is a little over 1.0 dB of variation across all possible phase angles for a 3.0 V supply. Therefore, setting the phase angle is not critical. At higher supply voltages setting the phase angle is more critical (and more rewarding). MRFIC2001 5 MOTOROLA RF DEVICE DATA Matching the LO port to 50 ohms can be done several ways. The recommended approach is a series inductor as close to the IC as possible. The inductor value is small enough (~8 -15 nH depending on LO frequency) to be printed on the board. A DC block is required and should not be placed between the inductor and IC since this will prevent the inductor from being close enough to the IC to provide a good match. The IF port is an open collector resulting in a very high output impedance. For optimum linearity (IP3), the IF port should be loaded with a 1000 ohm load-line. Since the output requires a bias inductor and blocking capacitor, the IF filter impedance can be transformed to 1000 ohms with these two elements. If a low output VSWR is desired (to reduce IF filter ripple), a 2.0 - 4.0 K ohm resistor can be placed in parallel with the bias inductor. This will reduce the conversion gain by 1.0 - 2.0 dB. The RF port is nearly 55 ohms resistive in series with a small amount of capacitive reactance, which results in a 12-13 dB return loss. If a higher return loss is desired, a 3.0 - 4.0 nH series inductor printed on the board as close to the IC as possible will improve it to over 20 dB. A DC block is also required. Supply decoupling must be done as close to the IC as possible. A 1000 pF capacitor is recommended. An additional 100 pF capacitor and an RF choke are recommended to keep the LO signal off the supply line. Enabling/Disabling the MRFIC2001 can be done with its TTL/CMOS compatible Enable pin. The trip point is between 1.0 and 2.0 volts. EVALUATION BOARDS Evaluation boards are available for RF Monolithic Integrated Circuits by adding a "TF" suffix to the device type. For a complete list of currently available boards and ones in development for newly introduced product, please contact your local Motorola Distributor or Sales Office. PACKAGE DIMENSIONS A 8 D 5 C E 1 4 H 0.25 M B M h B C e A SEATING PLANE X 45 _ NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A A1 B C D E e H h L MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.18 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0_ 7_ q L 0.10 A1 0.25 B M CB S A S q CASE 751- 05 ISSUE S Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1-303-675-2140 or 1-800-441-2447 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. 81-3-5487-8488 MfaxTM: RMFAX0@email.sps.mot.com - TOUCHTONE 1-602-244-6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, - US & Canada ONLY 1-800-774-1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 - http://sps.motorola.com/mfax INTERNET: http://motorola.com/sps MRFIC2001 6 MRFIC2001/D MOTOROLA RF DEVICE DATA |
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