MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer General Description The MAX19997A dual downconversion mixer is a versatile, highly integrated diversity downconverter that provides high linearity and low noise figure for a multitude of 1800MHz to 2900MHz base-station applications. The MAX19997A fully supports both low- and high-side LO injection architectures for the 2300MHz to 2900MHz WiMAX™, LTE, WCS, and MMDS bands, providing 8.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer ABSOLUTE MAXIMUM RATINGS VCC to GND ...........................................................-0.3V to +5.5V RF_, LO to GND.....................................................-0.3V to +0.3V IFM_, IFD_, IFM_SET, IFD_SET, LO_ADJ_M, LO_ADJ_D to GND.................................-0.3V to (VCC + 0.3V) RF_, LO Input Power ......................................................
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer +3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS (Typical Application Circuit optimized for the standard RF band (see Table 1), no input RF or LO signals applied, VCC = 3.0V to 3.6V, TC = -40°C to +85°C. Typical values are at VCC = 3.3V, TC = +25°C, unless otherwise noted. R1, R4 = 1.1kΩ, R2, R5 = 845Ω.) PARAMETER SYMBOL Supply Voltage VCC Supply Current ICC CONDITIONS MIN 3.0 Total supply current, VCC = 3.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer +5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued) (Typical Application Circuit optimized for the standard RF band (see Table 1), VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 2300MHz to 2900MHz, fLO = 2650MHz to 3250MHz, fIF = 350MHz, fRF < fLO, TC = -40°C to +85°C. Typical values are at VCC = 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer +5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued) (Typical Application Circuit optimized for the standard RF band (see Table 1), VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 2300MHz to 2900MHz, fLO = 2650MHz to 3250MHz, fIF = 350MHz, fRF < fLO, TC = -40°C to +85°C. Typical values are at VCC = 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer +5.0V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued) (Typical Application Circuit optimized for the standard RF band (see Table 1), VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 2300MHz to 2900MHz, fLO = 1950MHz to 2550MHz, fIF = 350MHz, fRF > fLO, TC = -40°C to +85°C. Typical values are at VCC = 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer +5.0V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued) (Typical Application Circuit optimized for the standard RF band (see Table 1), VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 2300MHz to 2900MHz, fLO = 1950MHz to 2550MHz, fIF = 350MHz, fRF > fLO, TC = -40°C to +85°C. Typical values are at VCC = 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer +3.3V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued) (Typical Application Circuit optimized for the standard RF band (see Table 1). Typical values are at VCC = 3.3V, PRF = -5dBm, PLO = 0dBm, fRF = 2600MHz, fLO = 2250MHz, fIF = 350MHz, TC = +25°C, unless otherwise noted.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 8 TC = +25°C 7 10 CONVERSION GAIN (dB) 10 CONVERSION GAIN (dB) 9 11 MAX19997A toc02 TC = -30°C 10 CONVERSION GAIN (dB) 11 MAX19997A toc01 11 CONVERSION GAIN vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) TC = +85°C 60 TC = +25°C 70 60 50 2200 TC = -30°C 75 65 95 PRF = -5dBm 85 75 65 TC = +25°C, +85°C 3LO - 3RF RESPONSE vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 50 45 40 TC = -30°C, +25°C, +85°C 35 45 40 PLO = -3dBm, 0dBm, +3dBm 2400 2600 2800 RF FREQUENCY (MHz) 3000 MAX19997A toc21 55 50 45 40 VCC = 4.75V, 5.0V, 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) -30 -40 -50 2520 2740 2960 3180 -30 PLO = -3dBm, 0dBm, +3dBm -40 3400 MAX19997A toc30 -20 -30 VCC = 4.75V, 5.0V, 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) IF PORT RETURN LOSS vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, extended RF band (see Table 2), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) TC = +85°C PLO = -3dBm, 0dBm, +3dBm 7 TC = +25°C 1900 2000 2100 2200 1900 2100 2200 1900 2000 2100 2200 RF FREQUENCY (MHz) INPUT IP3 vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, extended RF band (see Table 2), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) TC = -30°C 50 PLO = -3dBm, 0dBm, +3dBm PRF = -5dBm 1800 1900 2000 2100 2200 60 50 VCC = 4.75V, 5.0V, 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, extended RF band (see Table 2), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) CHANNEL ISOLATION vs. RF FREQUENCY (LO > RF, EXTENDED RF BAND) 50 45 40 TC = -30°C, +25°C, +85°C 1800 1900 2000 2100 2200 40 PLO = -3dBm, 0dBm, +3dBm MAX19997A toc59 50 45 40 VCC = 4.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, extended RF band (see Table 2), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) LO LEAKAGE AT RF PORT vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, extended RF band (see Table 2), VCC = 5.0V, LO is high-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 10 15 20 PLO = -3dBm, 0dBm, +3dBm 5 VCC = 4.75V, 5.0V, 5.25V 10 15 20 0 MAX19997A toc74 fLO = 2600MHz IF PORT RETURN LOSS vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) CONVERSION GAIN vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) CHANNEL ISOLATION vs. RF FREQUENCY (RF > LO, STANDARD RF BAND) 45 40 TC = -30°C, +25°C, +85°C 35 45 40 PLO = -3dBm, 0dBm, +3dBm 2400 2600 2800 RF FREQUENCY (MHz) 40 VCC = 4.75V, 5.0V, 5.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 5.0V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 15 20 PLO = -3dBm, 0dBm, +3dBm 25 VCC = 4.75V, 5.0V, 5.25V 10 15 20 5 3000 2400 2600 2800 RF FREQUENCY (MHz) 50 140 230 320 410 IF FREQUENCY (MHz) LO PORT RETURN LOSS vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 3.3V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 8 7 TC = +85°C 6 2400 2600 2800 3000 MAX19997A toc117 6 5 2200 2400 2600 2800 2200 3000 2400 2600 2800 INPUT IP3 vs. RF FREQUENCY (RF > LO, STANDARD RF BAND) INPUT IP3 vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 3.3V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 70 60 TC = +85°C TC = +25°C 70 PLO = 0dBm 60 2400 70 VCC = 3.3V 60 VCC = 3.0V 50 50 2200 VCC = 3.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 3.3V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 45 40 TC = -30°C, +25°C, +85°C 35 40 PLO = -3dBm, 0dBm, +3dBm 35 2400 2600 2800 3000 50 45 40 VCC = 3.0V, 3.3V, 3.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 3.3V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) TC = -30°C, +25°C, +85°C -30 -40 -20 -30 -40 -10 MAX19997A toc144 VCC = 3.3V LO LEAKAGE AT RF PORT (dBm) -20 -10 MAX19997A toc143 VCC = 3.3V LO LEAKAGE AT RF PORT vs.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Operating Characteristics (continued) (Typical Application Circuit, standard RF band (see Table 1), VCC = 3.3V, LO is low-side injected for a 350MHz IF, PLO = 0dBm, PRF = -5dBm, TC = +25°C, unless otherwise noted.) 10 15 20 fLO = 2250MHz 10 0 VCC = 3.3V 20 VCC = 3.0V, 3.3V, 3.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Pin Description PIN NAME FUNCTION 1 RFMAIN 2, 5, 6, 8, 12, 15, 18, 23, 28, 31, 34 GND Ground. Not internally connected. Ground these pins or leave unconnected. 3, 7, 20, 22, 24–27 GND Ground. Internally connected to the exposed pad. Connect all ground pins and the exposed pad (EP) together. 4, 10, 16, 21, 30, 36 VCC Power Supply.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer The MAX19997A’s RF range can be further extended down to 1800MHz by adding one additional tuning element on each RF port. For 1950MHz RF applications, connect a 12nH shunt inductor from pins 1 and 9 to ground. Also, change the value of the DC-blocking capacitors (C1 and C8) from 22pF to 1pF. See the Typical Application Circuit for details.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Power-Supply Bypassing Proper voltage supply bypassing is essential for highfrequency circuit stability. Bypass each VCC pin with the capacitors shown in the Typical Application Circuit. Exposed Pad RF/Thermal Considerations The exposed pad (EP) of the MAX19997A’s 36-pin TQFN-EP package provides a low thermal-resistance path to the die.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Table 2. Extended RF Band Application Circuit Component Values (Optimized for 1950MHz Operation) DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER C1, C8 2 1pF microwave capacitors (0402) Murata Electronics North America, Inc. C14 1 1.5pF microwave capacitor (0402) Murata Electronics North America, Inc. C4, C9, C13, C15, C17, C18 6 0.01µF microwave capacitors (0402) Murata Electronics North America, Inc.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Typical Application Circuit C19 T1 L1* VCC IF MAIN OUTPUT C21 R3 L2* 4:1 R1 VCC C20 VCC RF MAIN INPUT GND C17 28 29 30 31 VCC GND IFM32 IFM+ 33 IFM_SET GND 34 36 L7** C1 35 VCC C18 LO_ADJ_M R2 + RFMAIN GND GND VCC VCC C4 GND GND GND GND RFDIV RF DIV INPUT 27 1 MAX19997A 2 26 3 25 4 24 5 23 6 22 7 21 EXPOSED PAD 8 20 19 9 GND GND GND GND GND GND VCC VCC C15 GND LO LO
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer http://www.maximintegrated.com/reliability/product/ MAX19997A.
MAX19997A Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer Revision History REVISION NUMBER REVISION DATE 0 10/08 Initial release 1 9/10 Minor style edits 2 2/11 Increased IF frequency range from 50MHz to 550MHz 3 8/11 Expanded +5.0V Supply DC Electrical Characteristics table without changing existing limits 1/13 Updated General Description, Features, Ordering Information, Package Thermal Characteristics, +5.