Order this document by MRFIC2401/D SEMICONDUCTOR TECHNICAL DATA The MRFIC Line The MRFIC2401 is a GaAs low–noise amplifier and downmixer in a low–cost 16 lead plastic package designed for use in the 2.4 to 2.5 GHz Industrial– Scientific–Medical (ISM) band. The design is optimized for efficiency at 5.0 Volt operation at 2.45 GHz but is usable from 2.0 to 3.0 GHz in applications such as telemetry and Multichannel Multipoint Distribution System (MMDS) wireless cable TV systems. Performance is suitable for frequency hopping or direct sequence spread spectrum as well as single–frequency applications. LNA output and mixer input are available to allow image filtering. • Single Supply Voltage = 5.0 Volts • High Conversion Gain = 21 dB Typical Less Image Filter • Low Supply Current = 9.5 mA Typical • Low–Cost, Low Profile Plastic SOIC Package • Available in Tape and Reel by Adding R2 Suffix to Part Number. R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel. • Device Marking = M2401 2.4 GHz DOWNCONVERTER GaAs MONOLITHIC INTEGRATED CIRCUIT CASE 751B-05 (SO-16) ABSOLUTE MAXIMUM RATINGS (TA = 25_C unless otherwise noted) Parameter Symbol Value Unit Supply Voltage VDD 6.0 Vdc Input Power, RF IN Ports PRF +5.0 dBm Input Power, LO IN Port PLO +5.0 dBm TA –30 to +85 _C Storage Temperature Tstg –65 to +125 _C Bias Control Voltage STANDBY 6.0 Vdc Ambient Operating Temperature IF OUT GND RF IN MIXER GND MIXER VDD RF OUT LNA GND STANDBY 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 MIXER VDD GND LO IN GND RF IN LNA GND GND LNA VDD SLEEP Pin Connections and Functional Block Diagram REV 3 RF DEVICE DATA MOTOROLA Motorola, Inc. 1995 MRFIC2401 1 RECOMMENDED OPERATING CONDITIONS Parameter Symbol Value Unit VDD 4.75 to 5.25 Vdc fIF 100 to 350 MHz LO Drive Power Level PLO –10 to 0 dBm LO Frequency Range fLO 2050 to 2400 MHz RF Frequency Range fRF 2400 to 2500 MHz STANDBY Mode ON STANDBY VDD Vdc STANDBY Mode OFF STANDBY 0 Vdc SLEEP Mode OFF SLEEP VDD Vdc SLEEP Mode ON SLEEP 0 Vdc Supply Voltage IF Frequency Range ELECTRICAL CHARACTERISTICS (VDD = 5.0 Vdc, TA = 25_C, RF = 2.45 GHz, LO = 2.125 GHz @ –5.0 dBm, STANDBY = 0 Vdc) Characteristic Min Typ Max Unit Conversion Gain – Downconverter (Less Image Filter Loss) 19 21 – dB Gain – LNA – 17 – dB Conversion Gain – Mixer – 4.0 – dB Noise Figure – LNA – 1.9 – dB Noise Figure – Mixer – 11 – dB Return Loss – Mixer Input, LO Input, LNA Output – 10 – dB Input Third Order Intercept – Downconverter (Less Image Filter Loss) – –18 – dBm Input Third Order Intercept – LNA – –13 – dBm Input Third Order Intercept – Mixer – 0 – dBm Reverse Isolation – Downconverter (Less Image Filter Loss) – 30 – dB Isolation – LO to RF, LO to IF – 20 – dB Supply Current – Downconverter – 9.5 11 mA SLEEP Mode Supply Current – Downconverter (No LO, STANDBY= 5 Vdc, VDD/SLEEP = 5 Vdc) – 600 – mA Turn On, Turn Off Time – LNA – 1.0 – ms MRFIC2401 2 MOTOROLA RF DEVICE DATA VDD C2 L2 MIXER VDD L1 LO IN C4 T1 LNA IN L3 LNA VDD/ SLEEP 325 MHz IF: C1, C2 – 100 pF C3 – 5.6 pF C4 – 0.5 pF L1 – 4.7 nH L2 – 8.2nH L3 – 6.8 nH T1 – 100 Line, 92 MILS IF OUT 16 1 C1 C3 2 15 3 14 4 13 5 12 MIXER VDD 6 11 LNA OUT 7 10 8 9 RF IN STANDBY 110 MHz IF: C1 – 100 pF C2 – 1000 pF C3 – 8.2 pF C4 – 0.3 pF L1 – 8.2 nH L2 – 82 nH L3 – 6.8 nH T1 – 100 Line, 92 mils 240 MHz IF: C1, C2 – 100 pF C3 – 5.6 pF C4 – 0.5 pF L1 – 8.2 nH L2 – 18 nH L3 – 6.8 nH T1 – 100 Line, 92mils Board Material – FR4 Figure 1. Applications Circuit Configuration f LO Zin Frequency (GHz) R jX 2.0 39.7 23.9 2.1 35.7 22.1 2.2 32.1 19.8 2.3 29.1 17.1 2.4 26.5 14.0 2.5 24.4 10.7 Table 1. Selected Port Impedances (from Conjugate Match) 1.0 nH IF OUT 500 15 pF Figure 2. Equivalent IF Output Circuit MOTOROLA RF DEVICE DATA MRFIC2401 3 Table 2. LNA Scattering Parameters (VDD = 5 V, TA = 25°C, 50 W System) f S11 S21 S12 S22 (MHz) |S11| ∠φ |S21| ∠φ |S12| ∠φ |S22| ∠φ 2000 0.823 –50.8 5.35 14.3 0.0373 164.2 0.609 –64.1 2050 0.783 –62.9 6.13 –0.3 0.0425 154.3 0.558 –78.7 2100 0.752 –76.8 6.56 –18.3 0.0477 138 0.497 –94.3 2150 0.713 –89.8 6.8 –34 0.05 121 0.425 –110.7 2200 0.656 –104.2 7.14 –50.2 0.0511 106.4 0.343 –129.6 2250 0.583 –119 7.44 –66.4 0.0527 91.8 0.25 –152.3 2300 0.509 –134.1 7.8 –84.2 0.0554 78.1 0.155 176.2 2350 0.425 –148.2 7.86 –102.6 0.0579 59.89 0.088 120.7 2400 0.34 –163.6 7.84 –119.4 0.0552 42.31 0.111 43.8 2450 0.261 –177.8 7.78 –138.1 0.0528 28.27 0.191 2.2 2500 0.175 173.4 7.43 –154.6 0.0514 13.37 0.269 –21.9 2550 0.103 170.4 7.15 –170.6 0.0484 –0.842 0.338 –41.8 2600 0.056 –160.5 6.72 173 0.0455 –15.4 0.393 –59.4 2650 0.067 –130.7 6.47 159.1 0.0422 –28.11 0.436 –76.2 2700 0.102 –117.8 6.25 142.3 0.039 –41.5 0.472 –92.2 2750 0.132 –119.5 5.53 127.1 0.0353 –53.47 0.496 –107.5 2800 0.166 –125.2 5.26 117.5 0.0329 –63.28 0.513 –121.3 2850 0.19 –134.8 5.15 102.4 0.0309 –75.04 0.533 –135 2900 0.219 –144.8 4.71 87.6 0.0283 –87.86 0.547 –148.8 2950 0.235 –155.9 4.43 76.1 0.025 –95.83 0.559 –162.4 3000 0.262 –165.9 4.08 62.3 0.0235 –108.4 0.57 –175.7 MRFIC2401 4 MOTOROLA RF DEVICE DATA TYPICAL CHARACTERISTICS 30 0 1.0 dB COMPRESSION (dB) –2 25 TA = – 30°C SSB GAIN (dB) 25°C 20 +85°C 15 IF = 325 MHz Pin = – 40 dBm VDD = 5.0 Vdc 10 –4 25°C TA = – 30°C –6 –8 +85°C –10 IF = 325 MHz 0 dB FILTER LOSS VDD = 5.0 Vdc – 12 –14 –16 5 2.0 2.1 2.2 2.3 2.6 2.7 2.4 2.5 f, FREQUENCY (GHz) 2.8 2.9 –18 2.0 3.0 Figure 3. Downconverter Gain versus Frequency 20 2.1 2.2 2.3 2.4 2.5 2.6 2.7 f, FREQUENCY (GHz) 2.8 2.9 3.0 Figure 4. Downconverter 1.0 dB Compression versus Frequency 0 2.4 G, GAIN (dB) 2.2 GAIN 17 16 2.0 15 NF 14 1.8 13 12 11 10 2.0 Pin = – 25 dBm VDD = 5.0 Vdc 2.1 2.2 1.6 2.4 2.5 2.6 2.7 f, FREQUENCY (GHz) 2.3 2.8 2.9 SSB NOISE FIGURE (dB) 18 p out , OUTPUT POWER (dBm) 19 –5 –10 –15 f = 2.45 GHz VDD = 5.0 Vdc – 20 – 25 – 40 1.4 3.0 Figure 5. LNA Gain and Noise Figure versus Frequency –3 1.0 dB COMPRESSION (dBm) 25°C SSB GAIN (dB) 6 TA = – 30°C 4 +85°C 2 –4 –6 2.0 –10 –1 8 –2 –15 Figure 6. LNA Output Power versus Input Power 10 0 – 30 – 20 – 25 Pin, INPUT POWER (dBm) – 35 IF = 325 MHz Pin = 20 dBm VDD = 5.0 Vdc Plo = – 5.0 dBm 2.1 2.2 2.7 2.4 2.5 2.6 f, FREQUENCY (GHz) 2.8 Figure 7. Mixer Conversion Gain versus Frequency MOTOROLA RF DEVICE DATA 2.9 3.0 TA = – 30°C +85°C –7 –9 –11 –13 2.3 25°C –5 –15 2.0 IF = 325 MHz Pin = – 20 dBm VDD = – 5.0 Vdc Plo = – 5.0 dBm 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 f, FREQUENCY (GHz) Figure 8. Mixer 1.0 dB Compression versus Frequency MRFIC2401 5 TYPICAL CHARACTERISTICS –1 8 10 –2 6 –3 SSB GAIN (dB) 1.0 dB COMP –4 8 GAIN 7 –5 6 –6 IF = 325 MHz RF = 2.45 GHz VDD = 5.0 Vdc 5 4 –7 3 2 –10 –9 –8 –7 –6 –5 –4 –3 LO INPUT POWER (dBm) –2 0 –1 4 0 –2 –8 –6 –9 –8 –10 –10 2.0 15 – 24 LO FEEDTHROUGH (dBm) – 22 SSB NF (dB) 14 13 12 IF = 325 MHz VDD = 5.0 Vdc 2.2 2.3 2.6 2.7 2.4 2.5 f, FREQUENCY (dB) 2.8 2.9 3.0 Figure 11. Mixer Noise Figure versus Frequency MRFIC2401 6 2.1 2.2 2.3 2.4 2.5 2.6 2.7 f, FREQUENCY (GHz) 2.8 2.9 3.0 TA = – 30°C – 26 +85°C 25°C – 28 – 30 – 32 – 34 10 2.1 RF = 2.45 GHz Pin = – 20 dBm VDD = 5.0 Vdc Figure 10. Mixer Gain versus Frequency 16 9 2.0 110 MHz –4 Figure 9. Mixer 1.0 dB Compression and Gain versus LO Power 11 f = 325 MHz 240 MHz 2 G, GAIN (dB) 9 1.0 dB COMPRESSION (dB) 11 – 36 2.0 IF = 325 MHz VDD = 5.0 Vdc Plo = – 5.0 dBm 2.1 2.2 2.3 2.4 2.5 2.6 2.7 RF FREQUENCY (GHz) 2.8 2.9 3.0 Figure 12. Mixer LO Feedthrough versus RF Frequency MOTOROLA RF DEVICE DATA DESIGN AND APPLICATIONS INFORMATION The MRFIC2401 consists of a two–stage GaAs MESFET low noise amplifier and a single ended MESFET mixer. The LNA design conserves bias current through stacking of the two FETs, thus reusing the current. The mixer consists of a common gate stage driving a common source stage with the IF output being the drain of the common source stage shunted with 15 pF. The LNA output and mixer input have been separated to allow the addition of an external image filter. Such a filter, usually ceramic, is useful in improving the mixer noise figure and third order intercept performance. It also provides LO rejection to reduce the amount of LO power which may leak to the antenna. Alternatively, image trapping can be implemented at the LNA input or output with discrete or distributed components. The design has been optimized for best performance from 2.4 to 2.5 GHz, but the device is usable with reduced performance from 2.0 to 3.0 GHz as shown in the performance curves. These curves were generated using the circuit shown in Figure 1 and performance above 2.5 GHz can be enhanced by rematching the LO input port. Matching circuit details are shown for IFs of 110 MHz, 240 MHz, and 325 MHz matched to 50 W and LO frequencies consistent with an RF frequency of 2.45 GHz. Customized IF matching can be accomplished by using the Equivalent IF Output circuit model shown in Figure 2. The best gain/noise figure MOTOROLA RF DEVICE DATA tradeoff match is shown in the LNA input impedance column of Table 1. The LO input impedance is shown in the same table. These numbers are derived from conjugate match measurements of the applications circuit. The LNA output and mixer input are matched to 50 W. As with all RF circuitry, layout is important. Controlled impedance lines should be used at all RF ports. RF bypassing of power supply connections as close to the part as possible, while not always shown in the applications circuit, are recommended. Additional power supply “stiffening” and digital transient bypassing should be accomplished with electrolytic or tantalum capacitors. The device can be placed in a reduced current “standby” mode by applying 5.0 Vdc to the STANDBY pin and removing the LO drive. Further current reduction “sleep” mode, is enabled by applying 0 Vdc to VDD/SLEEP. This sleep mode can also be used to disable the LNA under high signal level conditions and give higher input intercept point if VDD is still applied to the mixer. 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 poduct, please contact your local Motorola Distributor or Sales Office. MRFIC2401 7 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 J M D 16 PL 0.25 (0.010) M T B S A S 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 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 can and do vary in different applications. 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. 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Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 MFAX: [email protected] – TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 MRFIC2401 8 ◊ *MRFIC2401/D* MRFIC2401/D MOTOROLA RF DEVICE DATA