9-; Rev ; 9/99 EVALUION KIT MANUALS FOLLOW DA SHEET MHz to.ghz Upconverter Mixers General Description The MAX/MAX/MAX/MAX7/MAX7 miniature, low-cost, low-noise upconverter mixers are designed for low-voltage operation and are ideal for use in portable consumer equipment. Signals at the IF input port are mixed with signals at the local oscillator (LO) port using a double-balanced mixer. These upconverter mixers operate with IF input frequencies between MHz and MHz, and upconvert to output frequencies as high as.ghz. These devices offer a wide range of supply currents and output intercept levels to optimize system performance. Supply current is essentially constant over the specified supply voltage range. Additionally, when the devices are in a typical configuration with V SHDN =, a shutdown mode reduces the supply current to less than µa. The MAX/MAX/MAX/MAX7 are offered in the space-saving -pin SOT package. For applications requiring balanced IF ports, choose the MAX7 in the -pin µmax package. Applications MHz/9MHz/.GHz ISM Hand-Held Radios Wireless Local Area Networks (WLANs) IEEE. and Wireless Data Personal Communications Systems (PCS) Cellular and Cordless Phones PART Ordering Information TEMP. RANGE PIN- PACKAGE TOP MARK MAXEUT-T MAXEUT-T MAXEUT-T - C to + C - C to + C - C to + C SOT- SOT- SOT- AAAF AAAG AAAL MAX7EUT-T - C to + C SOT- AAAJ MAX7EUA - C to + C µmax PART I CC (ma) OUTPUT IP () 9MHz GAIN () MHz Features RF Output Frequencies: MHz to.ghz Low Noise Figure: 9. (9MHz, MAX7) +.7V to +.V Single Supply High Output Intercept Point (OIP).9 at.ma (MAX) 7. at.ma (MAX).7 at.ma (MAX) 9. at.ma (MAX7) 7. at.ma (MAX7) µa Shutdown Mode Ultra-Small Surface-Mount Packaging TOP VIEW Typical Operating Circuits and Functional Diagram appear at end of data sheet. LO BUFFER Pin Configurations SINGLE-ENDED OR DIFFERENTIAL IF Selector Guide PACKAGE MAX..9. No Single Ended SOT MAX. 7.. No Single Ended SOT MAX..7. No Single Ended SOT MAX7. 9..9 Yes Single Ended SOT MAX7. 7.. Yes Differential µmax LO GND IFIN LO GND SHDN V CC SHDN MAX MAX V CC MAX MAX7 RFOUT SOT- MAX7 µmax 7 IFIN+ IFIN- GND RFOUT MAX/MAX/MAX/MAX7/MAX7 Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone --99-. For small orders, phone ---79.
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 ABSOLUTE MAXIMUM RINGS V CC to GND...-.V to +.V IFIN_ Input Power (Ω source)...+ LO Input Power (Ω source)...+ SHDN, RFOUT, IFIN_, LO to GND...-.V to (V CC +.V) Continuous Power Dissipation (T A = +7 C) -Pin µmax (derate.mw/ C above +7 C)...mW -Pin SOT- (derate.7mw/ C above +7 C)...9mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (V CC = +.7V to +.V, SHDN = +V, T A = - C to + C, unless otherwise noted. Typical values are at V CC = SHDN = +.V, T A = + C. Minimum and maximum values are guaranteed over temperature by design and characterization.) PARAMETER Operating Supply Current (LO and IFIN_ Unconnected) Shutdown Supply Current Shutdown Input Voltage High Shutdown Input Voltage Low Shutdown Input Bias Current SYMBOL I CC V IH V IL I IN AC ELECTRICAL CHARACTERISTICS Operating Temperature Range...- C to + C Junction Temperature...+ C Storage Temperature Range...- C to + C Lead Temperature (soldering, sec)...+ C CONDITIONS MIN TYP MAX MAX.. MAX.. MAX.. MAX7 MAX7 SHDN = GND, MAX..... SHDN = GND, MAX. SHDN = GND, MAX. SHDN = GND, MAX7. SHDN = GND, MAX7. SHDN =.V, V CC =.7V to.v SHDN =.V, V CC =.V to.v V CC. -. (V CC = SHDN = +.V, T A = + C, unless otherwise noted. Minimum and maximum values are guaranteed by design and characterization.) PARAMETER CONDITIONS MIN TYP MAX UNITS MAX (P LO = -, P IFIN = -, Circuit of Figure ) = MHz, f LO = MHz, = MHz 7. = 7MHz, f LO = 97MHz, = 9MHz 7. Conversion Gain = 7MHz, f LO = MHz, = 9MHz.9.9. = MHz, f LO = MHz, = MHz. Gain Variation Over Temperature Output Third-Order Intercept I CC = 7MHz, f LO = MHz, = 9MHz, ±. T A = - C to + C TBD ±. = 7MHz, f LO = 97MHz, = 9MHz.9 = 7MHz, f LO = MHz, = 9MHz.7 = MHz, f LO = MHz, = MHz. UNITS ma µa V V µa
MHz to.ghz Upconverter Mixers AC ELECTRICAL CHARACTERISTICS (continued) (V CC = SHDN = +.V, T A = + C, unless otherwise noted. Minimum and maximum values are guaranteed by design and characterization.) PARAMETER CONDITIONS MAX (P LO = -, P IFIN = -, Circuit of Figure ) (continued) Output Compression Point Noise Figure (Single Sideband) LO Emission from RF Port Maximum LO Input VSWR Maximum Output Spurious Emissions Turn-On Time Turn-Off Time Conversion Gain Gain Variation Over Temperature Output Third-Order Intercept Output Compression Point = 7MHz, f LO = 97MHz, = 9MHz = 7MHz, f LO = MHz, = 9MHz -. = MHz, f LO = MHz, = MHz -. = 7MHz, f LO = 97MHz, = 9MHz 9.9 = 7MHz, f LO = MHz, = 9MHz. = MHz, f LO = MHz, = MHz.9 = 7MHz, f LO = 97MHz, = 9MHz -. = 7MHz, f LO = MHz, = 9MHz -.7 = MHz, f LO = MHz, = MHz -. f = MHz to MHz, Ω source impedance. = 7MHz, f LO = MHz, = 9MHz (Note ) (Note ) From SHDN low to I CC < µa MAX (P LO = -, P IFIN = -, Circuit of Figure ) = MHz, f LO = MHz, = MHz = 7MHz, f LO = 97MHz, = 9MHz = 7MHz, f LO = MHz, = 9MHz = MHz, f LO = MHz, = MHz = 7MHz, f LO = MHz, = 9MHz, T A = - C to + C = 7MHz, f LO = 97MHz, = 9MHz = 7MHz, f LO = MHz, = 9MHz = MHz, f LO = MHz, = MHz = 7MHz, f LO = 97MHz, = 9MHz = 7MHz, f LO = MHz, = 9MHz = MHz, f LO = MHz, = MHz MIN TYP MAX..7 7.... = 7MHz, f LO = 97MHz, = 9MHz 9. Noise Figure (Single Sideband) = 7MHz, f LO = MHz, = 9MHz. = MHz, f LO = MHz, = MHz. = 7MHz, f LO = 97MHz, = 9MHz -.9 LO Emission from RF Port = 7MHz, f LO = MHz, = 9MHz -. = MHz, f LO = MHz, = MHz -. Maximum LO Input VSWR f = MHz to MHz, Ω source impedance. Maximum Output Spurious Emissions Turn-On Time Turn-Off Time = 7MHz, f LO = MHz, = 9MHz (Note ) (Note ) From SHDN low to I CC < µa -. -7 ±. ±. 7.. 7. -. -7. -. -7. UNITS MAX/MAX/MAX/MAX7/MAX7
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 AC ELECTRICAL CHARACTERISTICS (continued) (V CC = SHDN = +.V, T A = + C, unless otherwise noted. Minimum and maximum values are guaranteed by design and characterization.) PARAMETER CONDITIONS MIN TYP MAX UNITS MAX (P LO = -, P IFIN = -, Circuit of Figure ) = MHz, f LO = MHz, = MHz. = 7MHz, f LO = 97MHz, = 9MHz. Conversion Gain = 7MHz, f LO = MHz, = 9MHz -... fif = MHz, f LO = MHz, = MHz. Gain Variation Over Temperature = 7MHz, f LO = MHz, = 9MHz, T A = - C to + C ±. ±. = 7MHz, f LO = 97MHz, = 9MHz.7 Output Third-Order Intercept = 7MHz, f LO = MHz, = 9MHz -. = MHz, f LO = MHz, = MHz -. = 7MHz, f LO = 97MHz, = 9MHz -. Output Compression Point = 7MHz, f LO = MHz, = 9MHz -. = MHz, f LO = MHz, = MHz -. = 7MHz, f LO = 97MHz, = 9MHz.7 Noise Figure (Single Sideband) = 7MHz, f LO = MHz, = 9MHz. = MHz, f LO = MHz, = MHz.7 = 7MHz, f LO = 97MHz, = 9MHz -.7 LO Emission from RF Port = 7MHz, f LO = MHz, = 9MHz -. = MHz, f LO = MHz, = MHz -. Maximum LO Input VSWR f = MHz to MHz, Ω source impedance. Maximum Output Spurious Emissions = 7MHz, f LO = MHz, = 9MHz (Note ) -7 Turn-On Time (Note ) Turn-Off Time From SHDN low to I CC < µa MAX7 (P LO = -, P IFIN = -, Circuit of Figure ) = MHz, f LO = MHz, = MHz. Conversion Gain = 7MHz, f LO = 97MHz, = 9MHz. = 7MHz, f LO = MHz, = 9MHz.7 9..9 = MHz, f LO = MHz, = MHz.9 Gain Variation Over = 7MHz, f LO = MHz, = 9MHz, Temperature T A = - C to + C ±. ±. = 7MHz, f LO = 97MHz, = 9MHz 9. Output Third-Order Intercept = 7MHz, f LO = MHz, = 9MHz. = MHz, f LO = MHz, = MHz 9. = 7MHz, f LO = 97MHz, = 9MHz -. Output = 7MHz, f LO = MHz, = 9MHz -. Compression Point = MHz, f LO = MHz, = MHz -.
MHz to.ghz Upconverter Mixers AC ELECTRICAL CHARACTERISTICS (continued) (V CC = SHDN = +.V, T A = + C, unless otherwise noted. Minimum and maximum values are guaranteed by design and characterization.) PARAMETER CONDITIONS MAX7 (P LO = -, P IFIN = -, Circuit of Figure ) (continued) = 7MHz, f LO = 97MHz, = 9MHz 9. Noise Figure (Single Sideband) = 7MHz, f LO = MHz, = 9MHz.7 = MHz, f LO = MHz, = MHz. = 7MHz, f LO = 97MHz, = 9MHz -. LO Emission from RF Port = 7MHz, f LO = MHz, = 9MHz -.7 = MHz, f LO = MHz, = MHz -. Maximum LO Input VSWR f = MHz to MHz, Ω source impedance. Maximum Output Spurious Emissions Turn-On Time Turn-Off Time Conversion Gain Gain Variation Over Temperature Output Third-Order Intercept Output Compression Point = 7MHz, f LO = MHz, = 9MHz (Note ) (Note ) From SHDN low to I CC < µa MAX7 (P LO = -, P IFIN_ = -, Circuit of Figure ) Noise Figure (Single Sideband) LO Emission from RF Port Maximum LO Input VSWR Maximum Output Spurious Emissions MIN TYP MAX = MHz, f LO = MHz, = MHz. = 7MHz, f LO = 97MHz, = 9MHz. = 7MHz, f LO = MHz, = 9MHz 7. 9.. fif = MHz, f LO = MHz, = MHz. = 7MHz, f LO = MHz, = 9MHz, T A = - C to + C ±. ±. = 7MHz, f LO = 97MHz, = 9MHz 7. = 7MHz, f LO = MHz, = 9MHz.9 = MHz, f LO = MHz, = MHz. = 7MHz, f LO = 97MHz, = 9MHz -. = 7MHz, f LO = MHz, = 9MHz -.9 = MHz, f LO = MHz, = MHz -. = 7MHz, f LO = 97MHz, = 9MHz 9.7 = 7MHz, f LO = MHz, = 9MHz. = MHz, f LO = MHz, = MHz. = 7MHz, f LO = 97MHz, = 9MHz -9. = 7MHz, f LO = MHz, = 9MHz -7.9 = MHz, f LO = MHz, = MHz -. f = MHz to MHz, Ω source impedance. - UNITS = 7MHz, f LO = MHz, = 9MHz (Note ) -9.7 Turn-On Time (Note ) Turn-Off Time From SHDN low to I CC < µa Note : Excluding LO harmonics and products of LO harmonics by first-order IF. Note : From SHDN high to output within of final output power, = 9MHz, = 7MHz. MAX/MAX/MAX/MAX7/MAX7
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 Typical Operating Characteristics (V CC = SHDN = +.V, Typical Operating Circuits, P LO = - (MAX/MAX/MAX), P LO = - (MAX7/MAX7), P IFIN = -, T A = + C, unless otherwise noted.) ICC (ma)....... - - MAX SUPPLY CURRENT vs. SUPPLY VOLTAGE T A = + C T A = + C T A = - C....... V CC (V) 7 MAX CONVERSION GAIN vs. IF FREQUENCY = 9MHz = MHz 9MHz 9MHz MHz = 9MHz = f LO - = - f LO = - f LO MAX IF PORT IMPEDANCE vs. IF FREQUENCY MAX-7 MAX- MAX- - - - - - SHUTDOWN SUPPLY CURRENT (µa) IMPEDANCE (Ω) 9 7 - - - MAX SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE SHDN = GND T A = - C....... T A = + C T A = + C MAX CONVERSION GAIN vs. LO POWER = 9MHz = 9MHz 9MHz 9MHz MHz = MHz f LO 97MHz MHz MHz 7MHz 7MHz MHz - - - - - LO POWER () MAX RF PORT IMPEDANCE vs. RF FREQUENCY MAX- 9-7 - - - - - -7 - -9 - MAX- MAX- RETURN LOSS () IMPEDANCE (Ω) ISOLION () - - - - - - - - - - - - - - - 9 7 MAX CONVERSION GAIN vs. RF FREQUENCY.7V.V.7V.V RF MCH MHz 9MHz 9MHz MHz.7V.V = f LO - = f LO - = f LO + = f LO + MAX LO-to-RF AND RF-to-LO ISOLION vs. LO OR RF FREQUENCY RF-to-LO ISOLION POWER INTO RF PORT = - LO-to-RF ISOLION POWER INTO LO PORT = -.7V.V MHz 7MHz 7MHz MHz MAX LO PORT RETURN LOSS vs. FREQUENCY 9 LO FREQUENCY (MHz) LO OR MAX- MAX- MAX-9
MHz to.ghz Upconverter Mixers Typical Operating Characteristics (continued) (V CC = SHDN = +.V, Typical Operating Circuits, P LO = - (MAX/MAX/MAX), P LO = - (MAX7/MAX7), P IFIN = -, T A = + C, unless otherwise noted.) RETURN LOSS () OUTPUT POWER () AND MAX CONVERSION GAIN AND OUTPUT POWER vs. IF INPUT POWER CONVERSION GAIN = 9MHz = 9MHz = MHz - = 9MHz OUTPUT POWER - = 9MHz = MHz - f LO - 9MHz 97MHz 7MHz 9MHz MHz 7MHz MHz MHz MHz - - - - - - IF INPUT POWER () - - - - - - - - - - MAX CONVERSION GAIN vs. RF FREQUENCY V CC =.7V RF MCH MHz 9MHz 9MHz MHz V CC =.V V CC =.7V = f LO - = f LO - = f LO + = f LO + MHz 7MHz 7MHz MHz MAX LO PORT RETURN LOSS vs. FREQUENCY - 9 LO FREQUENCY (MHz) MAX- MAXtoc MAXtoc SUPPLY CURRENT (ma). 9. 9... 7. 7... 7 MAX SUPPLY CURRENT vs. SUPPLY VOLTAGE T A = + C T A = + C T A = - C....... MAX CONVERSION GAIN vs. IF FREQUENCY = MHz 9MHz 9MHz MHz = 9MHz = 9MHz = f LO - = - f LO = - f LO MAX IF PORT IMPEDANCE vs. IF FREQUENCY MAXtoc7 - MAXtoc MAXtoc - - - - - - - SHUTDOWN SUPPLY CURRENT (µa) 9 7 - - 7 MAX SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE SHDN = GND T A = + C T A = + C T A = - C....... MAX CONVERSION GAIN vs. LO POWER = 9MHz = 9MHz 9MHz 9MHz MHz = MHz f LO 97MHz MHz MHz 7MHz 7MHz MHz - - - - - LO POWER () MAX RF PORT IMPEDANCE vs. RF FREQUENCY MAXtoc 9 - - MAXtoc MAXtoc - - - - - -7 - -9 IMPEDANCE (Ω) MAX/MAX/MAX/MAX7/MAX7 7
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 Typical Operating Characteristics (continued) (V CC = SHDN = +.V, Typical Operating Circuits, P LO = - (MAX/MAX/MAX), P LO = - (MAX7/MAX7), P IFIN = -, T A = + C, unless otherwise noted.) ISOLION () SHUTDOWN SUPPLY CURRENT (µa) 9 7 - - - - - MAX LO-to-RF AND RF-TO-LO ISOLION vs. LO OR RF FREQUENCY RF-TO-LO ISOLION POWER INTO RF PORT = - LO-TO-RF ISOLION POWER INTO LO PORT = - f LO 97MHz MHz MHz 9MHz 9MHz MHz 7MHz 7MHz MHz 7 7 LO OR MAX SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE SHDN = GND T A = + C T A = + C T A = - C....... MAX CONVERSION GAIN vs. LO POWER = 9MHz = 9MHz = MHz f LO 97MHz MHz MHz 9MHz 9MHz MHz 7MHz 7MHz MHz - - - - - LO POWER () MAXtoc9 MAXtoc MAXtoc OUTPUT POWER () AND RETURN LOSS () - - - - - - - - - - - - MAX CONVERSION GAIN AND OUTPUT POWER vs. IF INPUT POWER = 9MHz = MHz = 9MHz = 9MHz = 9MHz 9MHz 9MHz MHz CONVERSION GAIN = MHz OUTPUT POWER f LO 97MHz MHz MHz 7MHz 7MHz MHz - - - - - - - - IF INPUT POWER () MAX CONVERSION GAIN vs. RF FREQUENCY RF MCH MHz 9MHz 9MHz MHz V CC = +.7V V CC = +.V = f LO - = f LO - = f LO + = f LO + MHz 7MHz 7MHz MHz MAX LO PORT RETURN LOSS vs. LO FREQUENCY - - - - - - - - - 7 LO FREQUENCY (MHz) MAXtoc MAXtoc MAXtoc SUPPLY CURRENT (ma)....... - - - - - - 9 7 MAX SUPPLY CURRENT vs. SUPPLY VOLTAGE T A = + C T A = + C T A = - C....... MAX CONVERSION GAIN vs. IF FREQUENCY = MHz 9MHz 9MHz MHz = 9MHz = 9MHz = f LO - = - f LO = - f LO MAX IF PORT IMPEDANCE vs. IF FREQUENCY MAXtoc7-9 MAXtoc MAXtoc - - - - - - -7 - IMPEDANCE (Ω)
MHz to.ghz Upconverter Mixers Typical Operating Characteristics (continued) (V CC = SHDN = +.V, Typical Operating Circuits, P LO = - (MAX/MAX/MAX), P LO = - (MAX7/MAX7), P IFIN = -, T A = + C, unless otherwise noted.) SUPPLY CURRENT (ma) MAX RF PORT IMPEDANCE vs. RF FREQUENCY MAXtoc 9-7 - - - - - -7 - -9 - MAX7 SUPPLY CURRENT vs. SUPPLY VOLTAGE 9....... T A = + C T A = + C T A = - C MAX7 CONVERSION GAIN vs. IF FREQUENCY = MHz = 9MHz 9MHz 9MHz MHz = 9MHz = f LO - = - f LO = - f LO MAX7toc MAX7toc IMPEDANCE (Ω) ISOLION () SHUTDOWN SUPPLY CURRENT (µa) MAX LO-TO-RF AND RF-TO-LO ISOLION vs. LO AND RF FREQUENCY RF-TO-LO ISOLION POWER INTO RF PORT = - LO-TO-RF ISOLION POWER INTO LO PORT = - f LO 9MHz 97MHz 7MHz 9MHz MHz 7MHz MHz MHz MHz LO AND MAX7 SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE 9 SHDN = GND 7 - - - - T A = + C T A = + C T A = - C....... MAX7 CONVERSION GAIN vs. LO POWER = 9MHz = 9MHz = MHz f LO 97MHz MHz MHz 9MHz 9MHz MHz 7MHz 7MHz MHz - - - - - - - LO INPUT POWER () MAXtoc9 MAX7toc MAX7toc OUTPUT POWER () AND RETURN LOSS () - - - - - - - - - MAX CONVERSION GAIN AND OUTPUT POWER vs. IF INPUT POWER = 9MHz = 9MHz = 9MHz = 9MHz CONVERSION GAIN = MHz = MHz OUTPUT POWER f LO 9MHz 97MHz 7MHz 9MHz MHz 7MHz MHz MHz MHz - - - - - - - - - - - IF INPUT POWER () - - - - - - - - - - MAX7 CONVERSION GAIN vs. RF FREQUENCY RF MCH MHz 9MHz 9MHz MHz V CC = +.V V CC = +.7V = f LO - = f LO - = f LO + = f LO + MHz 7MHz 7MHz MHz MAX7 LO PORT RETURN LOSS vs. LO FREQUENCY - 9 LO FREQUENCY (MHz) MAXtoc MAX7toc MAX7toc MAX/MAX/MAX/MAX7/MAX7 9
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 Typical Operating Characteristics (continued) (V CC = SHDN = +.V, Typical Operating Circuits, P LO = - (MAX/MAX/MAX), P LO = - (MAX7/MAX7), P IFIN = -, T A = + C, unless otherwise noted.) OUTPUT POWER () AND MAX7 IF PORT IMPEDANCE vs. IF FREQUENCY MAX7toc7 7 - - - - - - - - MAX7 CONVERSION GAIN AND OUTPUT POWER vs. IF INPUT POWER - = 9MHz OUTPUT POWER f - RF = 9MHz = MHz - f LO 9MHz 97MHz 7MHz - 9MHz MHz 7MHz MHz MHz MHz - - - - - - - - - - - IF INPUT POWER () - = 9MHz = 9MHz CONVERSION GAIN = MHz MAX7 CONVERSION GAIN vs. RF FREQUENCY V CC = +.V RF MCH MHz 9MHz 9MHz MHz V CC = +.7V = f LO - = f LO - = f LO + = f LO + V CC = +.7V MHz 7MHz 7MHz MHz MAX7toc MAX7toc IMPEDANCE (Ω) SUPPLY CURRENT (ma) MAX7 RF PORT IMPEDANCE vs. RF FREQUENCY MAX7toc 7 - - - - - - -7-9 7 - MAX7 SUPPLY CURRENT vs. SUPPLY VOLTAGE T A = + C T A = + C T A = - C....... MAX7 CONVERSION GAIN vs. IF FREQUENCY = 9MHz = 9MHz = MHz 9MHz 9MHz MHz = f LO - = - f LO = - f LO MAX7toc MAX7toc IMPEDANCE (Ω) ISOLION () SHUTDOWN SUPPLY CURRENT (µa) MAX7 LO-TO-RF AND RF-TO-LO ISOLION vs. LO or RF FREQUENCY LO-TO-RF ISOLION POWER INTO LO PORT = - RF-TO-LO ISOLION POWER INTO RF PORT = - LO AND 9 7 MAX7 SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE SHDN = GND T A = + C T A = - C T A = + C....... MAX7 CONVERSION GAIN vs. LO POWER = 9MHz = 9MHz = MHz f LO 9MHz 97MHz 7MHz 9MHz MHz 7MHz MHz MHz MHz - - - - - LO POWER () MAX7toc9 MAX7toc MAX7toc
MHz to.ghz Upconverter Mixers Typical Operating Characteristics (continued) (V CC = SHDN = +.V, Typical Operating Circuits, P LO = - (MAX/MAX/MAX), P LO = - (MAX7/MAX7), P IFIN = -, T A = + C, unless otherwise noted.) RETURN LOSS () MAX7 LO PORT RETURN LOSS vs. LO FREQUENCY - - - - - - - - - - 9 LO FREQUENCY (MHz) MAX7 RF PORT IMPEDANCE vs. RF FREQUENCY MAX7toc -7 OUTPUT POWER () AND MAX7toc - - - - - - IMPEDANCE (Ω) ISOLION () MAX7 IF PORT IMPEDANCE vs. IF FREQUENCY MAX7toc7 7 - - - - - - MAX7 LO-to-RF ISOLION AND RF-to-LO ISOLION vs. LO OR RF FREQUENCY MAX7 CONVERSION GAIN AND OUTPUT POWER vs. IF INPUT POWER = 9MHz = 9MHz = MHz - = 9MHz OUTPUT POWER f - RF = 9MHz = MHz - f LO 9MHz 97MHz 7MHz - 9MHz MHz 7MHz MHz MHz MHz - - - - - - - - - - - IF INPUT POWER () LO-TO-RF ISOLION POWER INTO LO PORT = - RF-TO-LO ISOLION POWER INTO RF PORT = - 9 7 LO OR CONVERSION GAIN MAX7toc MAX7toc9 IMPEDANCE (Ω) MAX/MAX/MAX/MAX7/MAX7
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 MAX MAX MAX MAX7 MAX7 FUNCTION Pin Description Local-Oscillator Input. Apply a local-oscillator signal with an amplitude of - to + for the MAX7/MAX7 or - to + for the MAX/ MAX/ MAX. AC-couple to the oscillator with a DC blocking capacitor. Nominal DC voltage is V CC -.V to V CC -.V., GND Mixer Ground. Connect to the ground plane with a low-inductance connection. PIN 7, NAME LO IFIN RFOUT V CC SHDN Intermediate Frequency Input. AC-couple to the input signal with a DC blocking capacitor. Nominal DC voltage is.7v. Radio Frequency Output. Open-collector output requires an inductor to V CC that is part of an impedance-matching network. AC-couple to this pin using a blocking capacitor that can be part of the impedance-matching network. See Applications Information for details on impedance matching. Voltage Supply Rail, +.7V to +.V. Bypass with a capacitor to the ground plane. Capacitor value depends on desired operating frequency. Active-Low Shutdown Pin. Drive low to deactivate all part functions and reduce the supply current to less than µa. For normal operation, drive high or connect to V CC.
MHz to.ghz Upconverter Mixers Detailed Description The MAX/MAX/MAX/MAX7/MAX7 are.ghz double-balanced upconverter mixers designed to provide optimum linearity performance for a specified supply current. These upconverter mixers use single-ended RF, LO, and IF port connections, except for the MAX7, which uses a differential IF port. An on-chip bias cell provides a low-power shutdown feature. See the Selector Guide for device features and comparison. Applications Information Local-Oscillator (LO) Input The LO input is a single-ended broadband port with a return loss of better than from MHz to.ghz. The LO signal is mixed with the input IF signal, and the resulting upconverted output appears on the RFOUT pin. AC-couple the LO pin with a capacitor having less than Ω reactance at the LO frequency. The MAX7/MAX7 include an internal LO buffer and require an LO signal ranging from - to +, while the MAX/MAX/MAX require an LO signal ranging from - to +. IF Input The MAX/MAX/MAX/MAX7 have a single-ended IF input port, while the MAX7 has a differential IF input port for high-performance interfaceto-differential IF filters. AC-couple the IF pin(s) with a capacitor. The typical IF input frequency range is MHz to MHz. For further information, see the IF Port Impedance vs. IF Frequency graph in the Typical Operating Characteristics. RF Output The RF output frequency range extends from MHz to.ghz. RFOUT is a high-impedance, open-collector output that requires an external inductor to V CC for proper biasing. For optimum performance, implement an impedance-matching network. The configuration and values for the matching network depend on the frequency, performance, and desired output impedance. For assistance in choosing components for optimal performance, see Table as well as the RF Output Impedance vs. RF Frequency graph in the Typical Operating Characteristics. Power Supply and SHDN Bypassing Proper attention to supply bypassing is essential for a high-frequency RF circuit. Bypass V CC with a µf capacitor in parallel with an RF capacitor (Table ). Use separate vias to the ground plane for each of the bypass capacitors and minimize trace length to reduce inductance. Use separate vias to the ground plane for each ground pin. Use low-inductance ground connections. Decouple SHDN with a pf capacitor to ground to minimize noise on the internal bias cell. Use a series resistor (typically Ω) to reduce coupling of high-frequency signals into the SHDN pin. Layout Issues A well-designed PC board is an essential part of an RF circuit. For best performance, pay attention to powersupply issues as well as to the layout of the RFOUT matching network. Power-Supply Layout To minimize coupling between different sections of the IC, the ideal power-supply layout is a star configuration with a large decoupling capacitor at a central V CC node. The V CC traces branch out from this central node, each going to a separate V CC node in the PC board. At the end of each trace is a bypass capacitor that has low ESR at the RF frequency of operation. This arrangement provides local decoupling at each V CC pin. At high frequencies, any signal leaking out of one supply pin sees a relatively high impedance (formed by the V CC trace inductance) to the central V CC node, and an even higher impedance to any other supply pin, as well as a low impedance to ground through the bypass capacitor. Impedance-Matching Network Layout The RFOUT matching network is very sensitive to layout-related parasitics. To minimize parasitic inductance, keep all traces short and place components as close as possible to the chip. To minimize parasitic capacitance, use cutouts in the ground plane (and any other plane) below the matching network components. MAX/MAX/MAX/MAX7/MAX7
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 Table. RF Output Impedance PART RF OUTPUT IMPEDANCE (Ω) MHz 9MHz 9MHz MHz MAX j7 j9 j9 j MAX 7 j9 9 j7 j j99 MAX j7 j j j MAX7 j j j j9 MAX7 j 7 j9 j j7 Table. Typical Operating Circuit (External Component Values) COMPONENT L (nh) Short L (nh) C (pf) C (pf) C (pf) 9 7.. C (pf) 7 7 MAX 9 7 9...7 7.. 7 Open 7 COMPONENT VALUE A GIVEN FREQUENCY (MHz) Short 9 7.. MAX/MAX7 9 7 7 7 9...7 7.. 7 Open 7 Short 7 7 7 LO LO 9.. IFIN+ IFIN- MAX 9 7. MAX MAX MAX MAX7 MAX7 MAX7 ONLY 9... 7.. 7 Open 7 Short 7 9.. 7 7 Functional Diagram MAX MAX MAX MAX7 MAX7 MAX7 9. 7 BIAS 9..9.7. 7 V CC SHDN GND RFOUT. 7
MHz to.ghz Upconverter Mixers LO INPUT IF INPUT LO INPUT SHUTDOWN CONTROL V CC +.V R Ω C pf C pf C pf C9 µf C pf C** LO GND IFIN MAX MAX MAX MAX7 SHDN V CC RFOUT C pf *THE VALUES OF L, L, C, C, C, AND C DEPEND ON THE RF FREQUENCY AND PART NUMBER. SEE TABLE. LO GND SHDN V CC MAX7 IFIN+ IFIN- GND RFOUT **THE VALUES OF L, L, C, C, C, AND C DEPEND ON THE RF FREQUENCY. SEE TABLE. 7 Typical Operating Circuits L* C pf L** C* L* C* L** C** R Ω C pf C7 pf C9 µf C** C** C* SHUTDOWN CONTROL C* IF INPUT RF OUTPUT V CC +.V RF OUTPUT MAX/MAX/MAX/MAX7/MAX7
MHz to.ghz Upconverter Mixers MAX/MAX/MAX/MAX7/MAX7 Package Information LSOT.EPS LUMAXD.EPS