Order this document by MRFIC2101/D SEMICONDUCTOR TECHNICAL DATA The MRFIC Line The MRFIC2101 is a high linearity transmit mixer and exciter designed primarily for Digital Cellular radio systems. The mixer is double-balanced for excellent LO and spurious rejection. An on-board LO buffer is provided to reduce LO power requirements and eliminate the need for an external LO balun. A power down control is provided to minimize current drain with minimum recovery/turn-on time. The design utilizes Motorola’s advanced MOSAIC 3 silicon bipolar RF process to yield superior performance in a cost effective monolithic device. • High Linearity IP30 = 23 dBm (Typ) • Low LO Drive Required = –15 dBm (Typ) • Externally Adjustable Exciter Bias Current • Power Down Supply Current = 2.0 µA (Typ) • SO-16 Narrow Body Plastic Package • Order MRFIC2101R2 for Tape and Reel. R2 suffix = 2,500 Units per 16 mm, 13 inch Reel. • Device Marking = M2101 900 MHz TX-MIXER/EXCITER SILICON MONOLITHIC INTEGRATED CIRCUIT CASE 751B-05 (SO-16) ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise noted) Ratings Symbol Value Unit Supply Voltage EX VCC, MX VCC, EX BIAS 5 Vdc Enable Voltages MX EN, EX EN 6 Vdc PLO, PIF +10 dBm TA – 35 to + 85 °C Storage Temperature Tstg – 65 to +150 °C RF Output Power (EX VCC < 4 V) Pout 18 dBm RF Output Power (4 V< EX VCC ≤ 5 V) Pout 38 – 5 EX VCC dBm Input Power, LO and IF Ports Operating Ambient Temperature IF IN + 1 16 IF IN – GND 2 15 MX EN LO IN 3 14 RF OUT +/MX VCC MX VCC 4 13 RF OUT –/MX VCC GND 5 12 GND EX VCC/EX OUT 6 11 EX IN GND 7 10 GND EX EN 8 9 EX BIAS Pin Connections and Functional Block Diagram REV 3 RF DEVICE DATA MOTOROLA Motorola, Inc. 1997 MRFIC2101 1 RECOMMENDED OPERATING CONDITIONS Parameter Symbol Value Unit Supply Voltages EX VCC, MX VCC, EX BIAS 4.75 Vdc Enable Voltages MX EN, EX EN 0, 4.75 Vdc RF Port Frequency Range RF 800 to 1000 MHz IF Port Frequency Range IF 0 to 250 MHz LOGIC LEVELS (TA = 25°C) Min Max Unit High MX VCC –0.8, EX VCC –0.8 — Volts Low — 0.8 Volts Input Voltage (MX EN, EX EN) MIXER ELECTRICAL CHARACTERISTICS (MX VCC, MX EN = 4.75 V, TA = 25°C, RF @ 900 MHz, LO @ 800 MHz, IF @ 100 MHz, PLO = –15 dBm unless otherwise noted) Characteristic (1) Min Typ Max Unit Conversion Gain (Small Signal) 24 26.5 29 dB Output Power at 1 dB Gain Compression 2.5 4.5 — dBm Output Third Order Intercept Point (– 5 dBm out/tone) — 14 — dBm Output Fifth Order Intercept Point (– 5 dBm out/tone) — 11 — dBm LO Leakage — – 30 — dBm Supply Current (Enabled) — 45 54 mA Supply Current (Disabled) — 1 — µA Noise Figure (Single Sideband) — 5 — dB EXCITER ELECTRICAL CHARACTERISTICS (EX VCC, EX EN, EX BIAS = 4.75 V, TA = 25°C, RF @ 900 MHz unless otherwise noted) Characteristic (1) Min Typ Max Unit Gain (Small Signal) 14 16 18 dB Output Power at 1 dB Gain Compression 16 18 — dBm Output Third Order Intercept Point (+ 3 dBm out/tone) — 30 — dBm Output Fifth Order Intercept Point (+ 3 dBm out/tone) — 22 — dBm LO Leakage (PLO = –15 dBm into Mixer) — – 30 — dBm Supply Current (Enabled) — 38 46 mA Supply Current (Disabled) — 1 — µA Noise Figure — 5 — dB (1) All electrical characteristics are measured in test circuit schematic as shown in Figure 1. MRFIC2101 2 MOTOROLA RF DEVICE DATA C12 λ/8 MX VCC – + λ/8 L4 RF OUT C10 C11 C13 EX IN – MX EN + C9 C16 C14 L5 C15 16 15 14 13 12 11 10 9 C8 + – EX BIAS DUT 1 C1 IF IN 2 3 4 5 6 7 8 L1 C7 L2 C2 + – EX EN C5 LO IN EX OUT + MX VCC – C3 C4 L3 C6 C1, C2, C3, C4 C5, C6, C7 C8, C10, C11 C9, C12 C13, C16 C14, C15 1000 pF, Chip Capacitor 100 pF, Chip Capacitor 1000 pF, Chip Capacitor 1000 pF, Chip Capacitor 5.6 pF, Chip Capacitor 2.7 pF, Chip Capacitor 1000 pF, Chip Capacitor L1, L5 L2 L3 L4 RF Connectors Board Material + – EX VCC 82 nH, Chip Inductor 15 nH, Chip Inductor 8.2 nH, Chip Inductor 12 nH, Chip Inductor SMA Type 0.031″ Thick FR4, 0.5 oz. Copper, εr = 4.45, Coplanar Waveguide Figure 1. Test Circuit Configuration MOTOROLA RF DEVICE DATA MRFIC2101 3 Table 1. Mixer Deembedded Port Reflection Coefficients (ZO = 50 Ω, TA = 25°C) ΓIF ΓRF ΓLO f (MHz) Mag M ∠φ Degrees Mag M ∠φ Degrees Mag M ∠φ Degrees 50 0.68 – 9.4 — — — — 100 0.68 – 18 — — — — 150 0.67 – 26 — — — — 200 0.66 – 33 — — — — 250 0.65 – 40 — — — — 500 — — 0.93 – 28 0.79 – 30 600 — — 0.92 – 33 0.79 – 32 700 — — 0.91 – 37 0.79 – 33 800 — — 0.89 – 41 0.77 – 34 900 — — 0.87 – 45 0.75 – 34 1000 — — 0.85 – 48 0.73 – 35 1100 — — 0.82 – 50 0.69 – 36 1200 — — 0.79 – 53 0.65 – 37 1300 — — 0.75 – 56 0.61 – 41 1400 — — 0.71 – 61 0.56 – 47 1500 — — 0.66 – 66 0.52 – 55 Table 2. Exciter Small Signal Deembedded S Parameters (ZO = 50 Ω, TA = 25°C) f (MHz) 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 MRFIC2101 4 S11 |S11| 0.51 0.62 0.65 0.65 0.63 0.61 0.59 0.58 0.58 0.59 0.61 0.65 0.67 0.69 0.71 S21 ∠φ – 121 – 149 – 162 – 170 – 177 176 169 161 154 145 139 134 131 129 127 |S21| 35.51 22.61 16.05 12.16 9.75 8.18 7.06 6.18 5.44 4.91 4.39 3.94 3.56 3.22 2.92 S12 ∠φ 131 109 96 87 81 75 70 65 60 55 51 47 43 39 36 |S12| 0.02 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.07 0.07 0.08 0.08 0.08 0.09 0.09 S22 ∠φ 50 42 41 41 42 41 40 38 33 30 27 22 20 16 13 |S22| 0.65 0.49 0.43 0.40 0.38 0.37 0.36 0.35 0.35 0.35 0.35 0.35 0.37 0.40 0.43 ∠φ – 67 – 103 – 122 – 134 – 141 – 146 – 149 – 153 – 156 – 163 – 170 – 177 174 166 160 MOTOROLA RF DEVICE DATA TYPICAL CHARACTERISTICS 30 28 MX VCC = 4.75 V 28 G C , CONVERSION GAIN (dB) G C , CONVERSION GAIN (dB) TA = – 35°C 25°C 85°C 26 4V 26 24 3V TA = 25°C MX VCC = 4.75 V 24 –17 –9 –13 22 –17 –5 –5 Figure 2. Mixer Gain versus LO Input Power Figure 3. Mixer Gain versus LO Input Power P out 1 dB , OUTPUT POWER (dBm) 6 TA = – 35°C 5 25°C 85°C 3 MX VCC = 4.75 V 4 4V 2 0 3V TA = 25°C MX VCC = 4.75 V 1 –17 –13 –9 –2 –17 –5 –13 –9 –5 PLO, LO INPUT POWER (dBm) PLO, LO INPUT POWER (dBm) Figure 4. Mixer Output Power at 1 dB Gain Compression versus LO Input Power Figure 5. Mixer Output Power at 1 dB Gain Compression versus LO Input Power 8 P RF , OUTPUT POWER (dBm) 10 P RF , OUTPUT POWER (dBm) –9 PLO, LO INPUT POWER (dBm) 7 P out 1 dB , OUTPUT POWER (dBm) –13 PLO, LO INPUT POWER (dBm) 6 TA = – 35°C 25°C 2 85°C –2 MX VCC = 4.75 V 4V 4 3V 0 –4 TA = 25°C MX VCC = 4.75 V –6 – 30 – 25 – 20 –15 –10 –8 – 30 – 25 – 20 –15 –10 PIF, IF INPUT POWER (dBm) PIF, IF INPUT POWER (dBm) Figure 6. Mixer Output Power versus IF Input Power Figure 7. Mixer Output Power versus IF Input Power MOTOROLA RF DEVICE DATA MRFIC2101 5 TYPICAL CHARACTERISTICS –10 –10 – 20 MX VCC = 3 V 3 rd ORDER IMD (dBc) 3 rd ORDER IMD (dBc) – 20 – 30 4V – 40 4.75 V – 50 – 30 25°C TA = 85°C – 40 – 35°C – 50 TA = 25°C – 60 –15 –10 –5 MX VCC = 4.75 V – 60 –15 0 –10 –5 0 Pout, OUTPUT POWER (dBm) Pout, OUTPUT POWER (dBm) Figure 8. Mixer 3rd Order Intermodulation Distortion versus Output Power Figure 9. Mixer 3rd Order Intermodulation Distortion versus Output Power 20 20 4V Pout , OUTPUT POWER (dBm) Pout , OUTPUT POWER (dBm) 25°C 16 3V EX VCC = 4.75 V 12 8 16 85°C TA = – 35°C 12 8 TA = 25°C 4 –10 –5 0 4 –10 10 5 Pin, INPUT POWER (dBm) –5 0 5 10 Pin, INPUT POWER (dBm) Figure 10. Exciter Output Power versus Input Power Figure 11. Exciter Output Power versus Input Power – 20 – 20 – 30 – 30 EX VCC = 3 V 3 rd ORDER IMD (dBc) 3 rd ORDER IMD (dBc) EX VCC = 4.75 V – 40 4V – 50 4.75 V – 60 – 40 – 35°C TA = 85°C – 50 25°C – 60 TA = 25°C EX VCC = 4.75 V – 70 – 70 0 5 Pout, OUTPUT POWER (dBm) Figure 12. Exciter 3rd Order Intermodulation Distortion versus Output Power MRFIC2101 6 10 0 5 10 Pout, OUTPUT POWER (dBm) Figure 13. Exciter 3rd Order Intermodulation Distortion versus Output Power MOTOROLA RF DEVICE DATA TYPICAL CHARACTERISTICS 50 (MX EN = EX EN = EX BIAS = EX VCC = MX VCC) I CC , SUPPLY CURRENT (mA) I CC , SUPPLY CURRENT (mA) 50 45 Mixer 40 35 Exciter 30 – 35 40 Mixer 30 Exciter 20 TA = 25°C EX VCC, MX VCC = 4.75 V 10 25 TA, Temperature (°C) Figure 14. ICC versus Temperature MOTOROLA RF DEVICE DATA 85 3 4 4.75 VCC, Supply Voltage (Volts) Figure 15. ICC versus VCC MRFIC2101 7 APPLICATIONS INFORMATION DESIGN PHILOSOPHY The MRFIC2101 was designed as a linear upconverter for U.S. and Japan digital cellular radios. However, it is versatile enough to be used in other applications such as analog cellular, GSM, CDMA and the 900 MHz ISM band. The mixer is double-balanced to minimize spurious and LO emission. An external balun is required on the mixer RF output to maximize linearity and maintain good balance. An inexpensive and easy to implement balun is described below in the theory of operation. The IF and LO ports do not require baluns. The LO split is achieved on-chip with a buffer amplifier which also reduces the LO power requirement. The IF port can be driven differentially or single-ended with a decoupling capacitor on the unused IF input. Baseband signals can be applied directly to the IF inputs and the device becomes a complete low–power transmitter. To maximize efficiency in various systems, the exciter bias current is externally adjustable. The bias current can also be ramped to reduce spectral splatter. To minimize current drain in TDD/TDMA systems, the MRFIC2101 has separate TTL/CMOS compatible enable pins for the mixer and the exciter. THEORY OF OPERATION 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 and distance from the IC) to be printed on the board. A DC block is required and should not be placed between the inductor and IC since the added electrical length will cause a poor match. The IF ports are approximately 250 ohms resistive in parallel with 5.0 pF of capacitance. Matching directly into this impedance is not recommended. Series 82 nH chip inductors should first be placed as close to both IF ports as possible. This presents a high impedance to the IF ports at the LO frequency which substantially reduces the LO leakage out of the RF port. The resulting impedance then may be matched to the desired characteristic impedance. DC blocking capacitors are also required. MRFIC2101 8 Both RF ports are approximately 25 ohms resistive in series with 1.5 pF of capacitance (or the parallel equivalent, 380 ohms in parallel with 1.9 pF). Best linearity is achieved by loading each port with 100 ohms resistive and resonating the 1.9 pF. Ideally, a half wavelength transmission line could be used to combine the two differential RF ports into one; however, the size of such a line would be very large. Any number of balun type network can be employed so long as the network presents 100 ohms to each port, resonates 1.9 pF capacitance at each port, and exhibits 180 degree phase difference between the two ports. The network shown in Figure 1 combines very well without a lot of added board space or complexity. Essentially, a quarter wavelength of transmission line (~1.5 inches of 50 ohms stripline in FR4) is used with additional phase shift coming from capacitors C12, C13 and C16. This network will operate anywhere from 800–1000 MHz by adjusting bias inductor L4 and C16 only. The exciter input requires external matching and a DC block. It is best matched to 50 ohms using a short 50 ohms transmission line followed by a 5–10 pF shunt capacitor. The exciter output is approximately 50 ohms resistive in parallel with 4 pF of capacitance in the 800–1000 MHz range. It is best matched to 50 ohms using a 6–10 nH bias inductor placed as close to the IC as possible. The exciter is conditionally stable. Placing a 100-300 ohm resistor in parallel with the bias inductor, when driving large VSWR loads, may be needed to keep the exciter stable. 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 MRFIC2101 can be done with the separate TTL/CMOS compatible enable pins for the mixer and exciter. The trip point is between 1 and 2 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. MOTOROLA RF DEVICE DATA PACKAGE DIMENSIONS –A– 16 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 9 –B– 1 P 8 PL 0.25 (0.010) 8 M B S G R K F X 45 _ C –T– SEATING PLANE M D 16 PL 0.25 (0.010) M T B S A S J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019 CASE 751B–05 ISSUE J MOTOROLA RF DEVICE DATA MRFIC2101 9 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. 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 Mfax: [email protected] – TOUCHTONE 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 INTERNET: http://motorola.com/sps MRFIC2101 10 ◊ MRFIC2101/D MOTOROLA RF DEVICE DATA