Order this document by MC13143/D The MC13143 is a high compression linear mixer with single–ended RF input, differential IF output and differential LO inputs which consumes as little as 1.8 mW. A new circuit topology is used to achieve a high third order intermodulation intercept point, high linearity and high 1.0 dB output compression point while maintaining a linear 50 Ω input impedance. It is designed for Up or Down conversion anywhere from dc to 2.4 GHz. ULTRA LOW POWER DC – 2.4 GHz LINEAR MIXER SEMICONDUCTOR TECHNICAL DATA Ultra Low Power: 1.0 mA @ VCC = 1.8 – 6.5 V • • • • Wide Input Bandwidth: DC–2.4 GHz Wide Output Bandwidth: DC–2.4 GHz Wide LO Bandwidth: DC–2.4 GHz High Mixer Linearity: Pi1.0 dB = 3.0 dBm 8 1 Linearity Adjustment of up to IP3in = 20 dBm • • • • D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) 50 Ω Mixer Input Single–Ended Mixer Input Double Balanced Mixer Operation Differential Open Collector Mixer Output PIN CONNECTIONS ORDERING INFORMATION Device MC13143D Operating Temperature Range Package TA = –40° to +85°C SO–8 Dec 1 VCC 8 RF 2 7 VEE LO+ 3 6 IF+ LO– 4 5 IF– Dec MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.) Rating Symbol Value Unit Power Supply Voltage VCC(max) 7.0 Vdc Junction Temperature TJmax +150 °C (Top View) Tstg –65 to +150 °C This device contains 29 active transistors. Storage Temperature Range NOTE: ESD data available upon request. This document contains information on a new product. Specifications and information herein are subject to change without notice. MOTOROLA ANALOG IC DEVICE DATA Motorola, Inc. 1997 Rev 0 1 MC13143 RECOMMENDED OPERATING CONDITIONS Rating Power Supply Voltage Symbol Min Typ Max Unit VCC 1.8 – 6.0 Vdc DC ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 3.0 V, fRF = 1.0 GHz, Pin = –25 dBm.) Characteristic Symbol Min Typ Max Unit Supply Current (Lin Control Current = 0) ICC1 – 1.0 – mA Supply Current (Lin Control Current = 1.6 mA) ICC2 – 4.1 – mA AC ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 3.0 V, fRF = 1.0 GHz, Pin = –25 dBm.) Characteristic Symbol Min Typ Max Unit VGC – 9.0 – dB Mixer Power Conversion Gain (RP = RL = 800 Ω) PGC –3.5 –2.6 –1.5 dB Mixer Input Return Loss Γinmx – –20 – dB Mixer SSB Noise Figure NFSSB – 14 15 dB Pin–1.0 dB –1 0 – dBm Mixer Input Third Order Intercept Point (df = 1.0 MHz, Icontrol = 1.6 mA) IP3in – 16 – dBm LO Drive Level LOin – –5.0 – dBm LO Leakage to Mixer IF Outputs PLO–IF – –33 –25 dB Mixer Input Feedthrough Output PRFm–IF – –25 – dB LO Leakage to Mixer Input PLO–RFm – –40 –25 dB Mixer Input Leakage to LO PRFm–LO – –35 – dB Mixer Voltage Conversion Gain (RP = RL = 800 Ω) Mixer 1.0 dB Compression Point (Mx Lin Control Current = 1.6 mA) Figure 1. Test Circuit VCC IAdjust RF 1 100 n 100 n 100 p 100 p Dec VCC 50 8 100 p Dec 2 7 3 6 4 5 100 p LO 2 VEE 50 16 1 IF 800 100 p MOTOROLA ANALOG IC DEVICE DATA MC13143 TYPICAL PERFORMANCE CURVES 2.0 –2.0 1.6 –4.0 1.2 –6.0 0.8 –8.0 0.4 –10 2.0 0 6.0 4.0 8.0 0 –3.0 13 –3.2 12.8 –3.4 12.6 12.4 12.2 –4.0 12 –4.2 –5.0 –4.4 5.0 0 LO POWER (dBm) Figure 4. Mixer Input Return Loss versus RF Input Frequency Figure 5. Power Conversion Gain and Supply Current versus RF Input Power – 4.5 8.0 – 5.5 6.0 GAIN (dB) –10 – 6.5 –15 – 7.5 –20 0 –3.8 VS (Vdc) –5.0 –25 –3.6 fRF = 900 MHz fLO = 950 MHz Test Circuit 11.8 –1.0 0 MIXER RF INPUT RETURN LOSS (dB) 13.2 0.5 1.0 1.5 2.0 V = 5.0 Vdc fRF = 900 MHz fLO = 950 MHz PLO = 0 dBm Test Circuit – 8.5 – 30 2.5 – 20 4.0 2.0 – 10 0 10 0 RF INPUT FREQUENCY (GHz) RF INPUT POWER (dBm) Figure 6. Noise Figure and Gain versus RF Frequency Figure 7. IIP3, Gain, Supply Current versus Mixer Linearity Control Current –4.0 15.5 I S (mA) 0 25 13.5 –6.0 12.5 11.5 –7.0 GAIN (dB) N FSSB (dB) –5.0 IIP3 (dBm), GAIN (dB), IS (mA) IIP3 (dBm) 14.5 20 15 VS = 5.0 Vdc fRF = 900 MHz fLO = 950 MHz 10 5.0 10.5 0 0.5 1.0 1.5 RF FREQUENCY (GHz) MOTOROLA ANALOG IC DEVICE DATA 2.0 –8.0 2.5 IS(mA) 0 –5.0 –10 10–5 GAIN (dB) Figure 3. Noise Figure and Gain versus LO Power IS (mA) N FSSB (dB) GAIN (dB) Figure 2. Power Conversion Gain and Supply Current versus Supply Voltage GAIN(dB) 10–4 10–3 10–2 MIXER LINEARITY CONTROL CURRENT, IMx Lin Cont (A) 3 MC13143 CIRCUIT DESCRIPTION General The MC13143 is a double–balanced Mixer. This device is designated for use as the frontend section in analog and digital FM systems such as Wireless Local Area Network (LAN), Digital European Cordless Telephone (DECT), PHS, PCS, GPS, Cellular, UHF and 800 MHz Special Mobile Radio (SMR), UHF Family Radio Services and 902 to 928 MHz cordless telephones. It features a mixer linearity control to preset or auto program the mixer dynamic range, an enable function and a wideband IF so the IC may be used either as a down converter or an up converter. Current Regulation Temperature compensating voltage independent current regulators provide typical supply current at 1.0 mA with no mixer linearity control current. Mixer The mixer is a unique and patented double–balanced four quadrant multiplier biased class AB allowing for programmable linearity control via an external current source. An input third order intercept point of 20 dBm may be achieved. All 3 ports of the mixer are designed to work up to 2.4 GHz. The mixer has a 50 Ω single–ended RF input and open collector differential IF outputs (see Internal Circuit Schematic for details). The linear gain of the mixer is approximately –5.0 dB with a SSB noise figure of 12 dB. Local Oscillator The local oscillator has differential input configuration that requires typically –10 dBm input from an external source to achieve the optimal mixer gain. Figure 8. MC13143 Internal Circuit* 5 6 IF– IF+ VCC 4 2 LO– 1.0 k 7 1.0 k VEE Q0 Q1 Q2 Q3 3 LO+ Vref1 VCC Q7 Q4 Q6 33 8 1 RFm VEE Q5 Mx Lin Cont 33 400 µA NOTE: * The MC13143 uses a unique and patented circuit topology. 4 MOTOROLA ANALOG IC DEVICE DATA MC13143 APPLICATIONS INFORMATION Evaluation PC Board The evaluation PCB is very versatile and is intended to be used across the entire useful frequency range of this device. The PC board is laid out to accommodate all SMT components on the circuit side (see Circuit Side Component Placement View). Component Selection The evaluation PC board is designed to accommodate specific components, while also being versatile enough to use components from various manufacturers. The circuit side placement view is illustrated for the components specified in the application circuit. The Component Placement View specifies particular components that were used to achieve the results shown in the typical curves and tables. Mixer Input The mixer input impedance is broadband 50 Ω for applications up to 2.4 GHz. It easily interfaces with a RF ceramic filter as shown in the application schematic. Mixer Linearity Control The mixer linearity control circuit accepts approximately 0 to 2.3 mA control current. An Input Third Order Intercept Point, IIP3 of 20 dBm may be achieved at 2.3 mA of control current (approximately 7.0 mA of additional supply current). Interface matching between the RF input, RF filter and the mixer will be required. The interface matching networks shown in the application circuit are designed for 50 Ω interfaces. Differential to single–ended circuit configuration is shown in the test circuit. 6.0 dB of additional mixer gain can be achieved by conjugately matching the output of the MiniCircuits transformer to 50 Ω at the desired IF frequency. With narrowband IF output matching the mixer performance is 3.0 dB gain and 12 dB noise figure (see Narrowband 49 and 83 MHz IF Output Matching Options). Typical insertion loss of the Toko ceramic filter is 3.0 dB. Thus, the overall gain of the circuit is 0 dB with a 15 dB noise figure. Figure 9. Narrowband IF Output Matching with 16:1 Z Transformer and LC Network 100 p 7 Z Transformer 16:1 330 nH 6 Mixer 49 MHz IF Output 36 p IF Outputs 5 SMA 100 p IF Output The IF is a differential open collector configuration which is designed to use over a wide frequency range for up conversion as well as down conversion. MOTOROLA ANALOG IC DEVICE DATA Mixer RF Input VCC Local Oscillator Inputs The differential LO inputs are internally biased at VCC – 1.0 VBE; this is suitable for high voltage and high gain operation. For low voltage operation, the inputs are taken to VCC through 51 Ω. Input/Output Matching It is desirable to use a RF ceramic or SAW filter before the mixer to provide image frequency rejection. The filter is selected based on cost, size and performance tradeoffs. Typical RF filters have 3.0 to 5.0 dB insertion loss. The PC board layout accommodates both ceramic and SAW RF filters which are offered by various suppliers such as Siemens, Toko and Murata. SMA 8 SMA Mixer RF Input 8 VCC 7 180 nH Mixer 83.16 MHz 6 9.2 p IF Outputs 10 n IF Output 9.2 k 5 180 nH VCC 5 MC13143 Figure 10. Circuit Side Component Placement View MC13143D IF Out Toko 926A10 Dielectric Filter 16:1 Impedance Transformer Mixer In 820 Gnd 100 p 100 n MC13143D 100 p VCC 100 n 100 n 100 p 51 51 Mx Lin Cont 100 p LO Input Rev A NOTES: 926.5 MHz preselect dielectric filter is Toko part # 4DFA–926A10; the 4DFA (2 and 3 pole SMD type) filters are available for applications in cellular and GSM, GPS, DECT, PHS, PCS and ISM bands at 902–928 MHz, 1.8–1.9 GHz at 2.4–2.5 GHz. The PCB also accommodates a surface mount RF SAW filter in an eight or six pin ceramic package for the cellular base and handset frequencies. Recommended manufacturers are Siemens and Murata. The PCB may also be used without a preselector filter; AC coupled to the mixer as shown in the test circuit schematic. All other external circuit components shown in the PCB layout above are the same as used in the test circuit schematic. 16:1 broadband impedance transformer is mini circuits part #TX16–R3T; it is in the leadless surface mount “TX” package. For a more selective narrowband match, a lowpass filter may be used after the transformer. The PCB is designed to accommodate lump inductors and capacitors in more selective narrowband matching of the mixer differential outputs to a single–ended output at a given IF frequency. . 6 The local oscillator may also be driven in a differential configuration using a coaxial transformer. Recommended sources are the Toko Balun transformers type B4F, B5FL and B5F (SMD component). MOTOROLA ANALOG IC DEVICE DATA MC13143 Figure 11. Circuit Side View MC13143D IF Out Mixer In Gnd Mx Lin Cont LO Input VCC Rev A NOTES: Critical dimensions are 50 mil centers lead to lead in SO–8 footprint. Also line widths to labeled ports excluding VCC are 50 mil. Figure 12. Ground Side View Rev A VCC LO Input Mx Lin Cont Mixer In MC13143D MOTOROLA ANALOG IC DEVICE DATA IF Out 7 MC13143 OUTLINE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751–06 (SO–8) ISSUE T D A 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETER. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. C 5 0.25 H E M B M 1 4 h B X 45 _ e q A C SEATING PLANE L 0.10 A1 B 0.25 M C B S A S DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 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_ 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. 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