9-4402; Rev 1; 5/09 SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer The MAX19996A single, high-linearity downconversion mixer provides 8.7dB conversion gain, +24.5dBm IIP3, and 9.8dB noise figure for 2000MHz to 3900MHz WCS, LTE, WiMAX™, and MMDS wireless infrastructure applications. With an ultra-wide LO frequency range of 2100MHz to 4000MHz, the MAX19996A can be used in either low-side or high-side LO injection architectures for virtually all 2.5GHz and 3.5GHz applications.
MAX19996A SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer ABSOLUTE MAXIMUM RATINGS VCC to GND ...........................................................-0.3V to +5.5V IF+, IF-, LO to GND ....................................-0.3V to (VCC + 0.3V) RF, LO Input Power ........................................................+12dBm RF, LO Current (RF and LO is DC shorted to GND through a balun)...............................................................
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer PARAMETER RF Frequency Range LO Frequency SYMBOL fRF fLO IF Frequency fIF LO Drive CONDITIONS MIN Typical Application Circuit with C1 = 8.2pF, see Table 1 for details (Note 5) 2000 TYP MAX UNITS 3000 MHz Typical Application Circuit with C1 = 1.
MAX19996A SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer 5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS—fRF = 2300MHz TO 2900MHz, HIGH-SIDE LO INJECTION (continued) (Typical Application Circuit with tuning elements outlined in 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, fIF = 300MHz, fLO = 2600MHz to 3200MHz, fRF < fLO, TC = -40°C to +85°C. Typical values are for TC = +25°C, VCC = 5.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer (Typical Application Circuit with tuning elements outlined in Table 1, RF and LO ports are driven from 50Ω sources. Typical values are for TC = +25°C, VCC = 3.3V, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz, unless otherwise noted.) (Note 6) PARAMETER Small-Signal Conversion Gain SYMBOL CONDITIONS MIN GC TYP MAX UNITS 8.3 dB 0.15 dB Gain Variation vs.
MAX19996A SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer 5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS—fRF = 2300MHz TO 2900MHz, LOW-SIDE LO INJECTION (Typical Application Circuit with tuning elements outlined in 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, fIF = 300MHz, fLO = 2000MHz to 2600MHz, fRF > fLO, TC = -40°C to +85°C. Typical values are for TC = +25°C, VCC = 5.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 3100MHz to 3900MHz, fIF = 300MHz, fLO = 2800MHz to 3600MHz, fRF > fLO, TC = -40°C to +85°C. Typical values are for TC = +25°C, VCC = 5.0V, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 300MHz.
MAX19996A SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer 5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS—fRF = 3100MHz TO 3900MHz, LOW-SIDE LO INJECTION (continued) (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 3100MHz to 3900MHz, fIF = 300MHz, fLO = 2800MHz to 3600MHz, fRF > fLO, TC = -40°C to +85°C. Typical values are for TC = +25°C, VCC = 5.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, Typical values are for TC = +25°C, VCC = 5.0V, PLO = 0dBm, fRF = 3500MHz, fLO = 3800MHz, fIF = 300MHz. Parameters are guaranteed by design and not production tested.
Typical Operating Characteristics (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 2000MHz to 3000MHz, LO is high-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) 8 9 8 PLO = -3dBm, 0dBm, +3dBm 2800 3000 2000 2200 RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY 2600 2800 TC = +25°C 25 22 2600 2800 24 PLO = -3dBm, 0dBm, +3dBm 3000 25 VCC = 4.75V, 5.0V, 5.25V 22 2000 NOISE FIGURE vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer 60 PLO = 0dBm 70 60 TC = -30°C, +25°C, +85°C 2800 3000 2000 2200 2600 2800 2000 3000 80 75 TC = -30°C, +25°C, +85°C 85 PRF = -5dBm 3LO-3RF RESPONSE (dBc) PRF = -5dBm 65 80 2200 2400 2600 2800 3000 2200 2400 2600 2800 9 RF FREQUENCY (MHz) 3000 2600 2800 3000 12 11 10 PLO = -3dBm, 0dBm, +3dBm VCC = 4.75V, 5.0V, 5.25V 9 9 2800 2400 13 MAX19996A toc17 10 TC = +25°C 2600 2200 INPUT P1dB vs.
Typical Operating Characteristics (continued) (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 2000MHz to 3000MHz, LO is high-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) LO LEAKAGE AT IF PORT vs. LO FREQUENCY -30 TC = +25°C 2500 2700 2900 3100 3300 2300 2500 2700 2900 3100 2300 3300 2500 2700 2900 3100 LO FREQUENCY (MHz) LO FREQUENCY (MHz) LO FREQUENCY (MHz) RF-TO-IF ISOLATION vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer -30 TC = +25°C -40 TC = +85°C -50 -30 -40 2520 2740 2960 3180 3400 2300 2520 2740 2960 VCC = 5.25V 3180 2300 3400 2520 2740 2960 3180 IF PORT RETURN LOSS vs. IF FREQUENCY LO PORT RETURN LOSS vs.
Typical Operating Characteristics (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 3.3V, fRF = 2000MHz to 3000MHz, LO is high-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) CONVERSION GAIN vs. RF FREQUENCY 9 8 VCC = 3.3V 10 9 8 7 7 11 MAX19996A toc39 CONVERSION GAIN (dB) TC = +25°C 11 10 CONVERSION GAIN (dB) TC = -30°C 10 CONVERSION GAIN vs. RF FREQUENCY MAX19996A toc38 VCC = 3.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer PLO = 0dBm 60 2200 2400 2600 2800 3000 50 2000 2200 2400 2600 2800 2000 3000 2200 2400 3LO-3RF RESPONSE vs. RF FREQUENCY 3LO-3RF RESPONSE vs. RF FREQUENCY 70 60 TC = -30°C, +25°C, +85°C PRF = -5dBm 2400 2600 2800 50 2000 3000 2200 2400 2600 2800 2000 3000 2200 2400 RF FREQUENCY (MHz) RF FREQUENCY (MHz) INPUT P1dB vs. RF FREQUENCY INPUT P1dB vs. RF FREQUENCY INPUT P1dB vs.
Typical Operating Characteristics (continued) (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 3.3V, fRF = 2000MHz to 3000MHz, LO is high-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) LO LEAKAGE AT IF PORT vs. LO FREQUENCY -30 -40 TC = +25°C TC = -30°C 2500 2700 2900 3100 -40 PLO = -3dBm, 0dBm, +3dBm 2500 2700 2900 3100 3300 2300 2700 2900 3100 RF-TO-IF ISOLATION vs. RF FREQUENCY RF-TO-IF ISOLATION vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY -30 -40 -50 2740 2960 3180 2300 2740 2960 3180 3400 2520 2740 2960 3180 LO PORT RETURN LOSS vs. LO FREQUENCY 20 10 VCC = 3.0V, 3.3V, 3.6V 20 30 2400 2600 2800 3000 PLO = 0dBm 10 20 PLO = -3dBm 30 40 50 2200 VCC = 3.
Typical Operating Characteristics (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 2000MHz to 3000MHz, LO is low-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) 9 8 7 TC = +85°C 8 PLO = -3dBm, 0dBm, +3dBm 2400 2600 2800 3000 2200 2400 2600 2800 2000 3000 INPUT IP3 vs. RF FREQUENCY INPUT IP3 vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer PLO = +3dBm PLO = 0dBm 70 60 TC = -30°C, +25°C, +85°C 2200 2400 2600 2800 3000 2000 2200 2400 2600 2800 2000 3000 2200 2400 2600 2800 3RF-3LO RESPONSE vs. RF FREQUENCY 3RF-3LO RESPONSE vs. RF FREQUENCY 3RF-3LO RESPONSE vs. RF FREQUENCY 70 PRF = -5dBm 80 75 70 PRF = -5dBm 65 2600 2800 3000 2000 2200 2400 2600 2800 2000 3000 2200 2400 2600 RF FREQUENCY (MHz) RF FREQUENCY (MHz) INPUT P1dB vs.
Typical Operating Characteristics (continued) (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 2000MHz to 3000MHz, LO is low-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) -30 PLO = -3dBm, 0dBm, +3dBm -20 -30 -10 MAX19996A toc93 MAX19996A toc92 TC = -30°C -20 -10 LO LEAKAGE AT IF PORT (dBm) MAX19996A toc91 -10 LO LEAKAGE AT IF PORT (dBm) LO LEAKAGE AT IF PORT vs. LO FREQUENCY LO LEAKAGE AT IF PORT vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer -30 TC = +85°C TC = +25°C PLO = -3dBm, 0dBm, +3dBm -20 -30 -40 -10 MAX19996A toc102 MAX19996A toc101 TC = -30°C -20 -10 2LO LEAKAGE AT RF PORT (dBm) MAX19996A toc100 2LO LEAKAGE AT RF PORT (dBm) -10 -40 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY 2LO LEAKAGE AT RF PORT (dBm) 2LO LEAKAGE AT RF PORT vs. LO FREQUENCY -20 VCC = 4.75V -30 -40 VCC = 5.0V VCC = 5.
Typical Operating Characteristics (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 3000MHz to 3900MHz, LO is low-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) 8 7 9 8 7 10 MAX19996A toc111 TC = +25°C 9 10 MAX19996A toc110 TC = -30°C CONVERSION GAIN (dB) MAX19996A toc109 10 CONVERSION GAIN (dB) CONVERSION GAIN vs. RF FREQUENCY CONVERSION GAIN vs. RF FREQUENCY CONVERSION GAIN (dB) CONVERSION GAIN vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer 70 PLO = -0dBm 60 TC = -30°C, +25°C, +85°C 3300 3600 3900 50 3000 3300 3600 3000 3900 3RF-3LO RESPONSE vs. RF FREQUENCY 3RF-3LO RESPONSE vs. RF FREQUENCY PRF = -5dBm TC = -30°C, +25°C, +85°C 80 75 70 PRF = -5dBm 3600 75 70 VCC = 4.75V, 5.0V, 5.
Typical Operating Characteristics (continued) (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 3000MHz to 3900MHz, LO is low-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) -20 TC = +85°C -30 3000 3300 3600 MAX19996A toc129 MAX19996A toc128 2700 3000 3300 2700 3600 3000 3300 LO FREQUENCY (MHz) RF-TO-IF ISOLATION vs. RF FREQUENCY RF-TO-IF ISOLATION vs. RF FREQUENCY RF-TO-IF ISOLATION vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer -30 -40 -50 -20 -30 -40 2900 3200 3500 3800 VCC = 4.75V, 5.0V, 5.25V -20 -30 -40 -50 -50 2600 2900 3200 3500 2600 3800 2900 3200 3500 LO FREQUENCY (MHz) LO FREQUENCY (MHz) RF PORT RETURN LOSS vs. RF FREQUENCY IF PORT RETURN LOSS vs. IF FREQUENCY LO PORT RETURN LOSS vs. LO FREQUENCY 10 15 20 VCC = 4.75V, 5.0V, 5.
Typical Operating Characteristics (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 3000MHz to 3700MHz, LO is high-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) 8 7 9 8 10 MAX19996A toc147 TC = +25°C MAX19996A toc146 CONVERSION GAIN (dB) TC = -30°C 10 CONVERSION GAIN (dB) MAX19996A toc145 10 9 CONVERSION GAIN vs. RF FREQUENCY CONVERSION GAIN vs. RF FREQUENCY CONVERSION GAIN (dB) CONVERSION GAIN vs.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer TC = +25°C PLO = 0dBm 60 TC = -30°C 3175 3350 3525 3700 3000 3175 3350 3525 3000 3700 3525 3LO-3RF RESPONSE vs. RF FREQUENCY 3LO-3RF RESPONSE vs. RF FREQUENCY 75 TC = +85°C PRF = -5dBm PLO = -3dBm 85 80 PLO = +3dBm 75 TC = +25°C PRF = -5dBm 85 80 VCC = 5.25V 75 VCC = 5.0V VCC = 4.
Typical Operating Characteristics (continued) (Typical Application Circuit with tuning elements outlined in Table 1, VCC = 5.0V, fRF = 3000MHz to 3700MHz, LO is high-side injected for a 300MHz IF, PRF = -5dBm, PLO = 0dBm, TC = +25°C, unless otherwise noted.) -30 TC = +25°C PLO = -3dBm -20 -30 TC = +85°C 3475 3650 3825 3300 3475 3650 3825 3300 4000 MAX19996A toc165 3825 RF-TO-IF ISOLATION vs. RF FREQUENCY RF-TO-IF ISOLATION vs. RF FREQUENCY 15 25 3350 3525 3700 VCC = 4.75V, 5.0V, 5.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer -20 -30 -40 -20 -30 3250 3500 3750 4000 -30 -40 3000 3250 3500 3750 3000 4000 3500 3750 IF PORT RETURN LOSS vs. IF FREQUENCY LO PORT RETURN LOSS vs.
MAX19996A SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer Pin Description PIN NAME 1, 6, 8, 14 VCC FUNCTION 2 RF Single-Ended 50Ω RF Input. Internally matched and DC shorted to GND through a balun. Requires an input DC-blocking capacitor. 3, 4, 5, 10, 12, 13, 17 GND Ground. Internally connected to the exposed pad. Connect all ground pins and the exposed pad (EP) together. 7 LOBIAS 9, 15 N.C. 11 LO Local Oscillator Input. This input is internally matched to 50Ω.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer Differential IF Output Amplifier The MAX19996A has an IF frequency range of 50MHz to 500MHz, where the low-end frequency depends on the frequency response of the external IF components. The MAX19996A mixer is tuned for a 300MHz IF using 390nH external pullup bias inductors. Lower IF frequencies would require higher inductor values to maintain a good IF match.
MAX19996A SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer Table 1. Component Values DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER 8.2pF microwave capacitor (0402). Use for RF frequencies ranging from 2000MHz to 3000MHz. C1 1 Murata Electronics North America, Inc. 1.5pF microwave capacitor (0402). Use for RF frequencies ranging from 3000MHz to 3900MHz. C2, C6, C8, C11 4 0.01µF microwave capacitors (0402) Murata Electronics North America, Inc.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer C13 C15 L1 3 6 IF OUTPUT T1 2 L2 R3 1 4 C14 4:1 R1 20 C2 VCC C1 RF INPUT RF 19 LEXT GND 18 17 16 15 1 MAX19996A 2 14 N.C. VCC +5.0V C11 GND GND 3 13 4 12 GND GND EP C10 11 5 +5.0V C6 9 LO LO INPUT 10 GND 8 N.C. 7 LOBIAS 6 VCC GND VCC C3 IF- +5.0V IF+ IFBIAS L3 R2 NOTE: PINS 3, 4, 5, 10, 12, 13, AND 17 ARE ALL INTERNALLY CONNECTED TO THE EXPOSED GROUND PAD.
VCC IF+ IF- GND LEXT TOP VIEW IFBIAS Pin Configuration/ Functional Diagram 20 19 18 17 16 RF 2 GND 3 GND 4 MAX19996A Chip Information PROCESS: SiGe BiCMOS Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. 15 1 N.C. 14 VCC 13 GND 12 GND 11 LO PACKAGE TYPE PACKAGE CODE DOCUMENT NO. 20 Thin QFN-EP T2055+3 21-0140 EP 34 6 7 8 9 10 VCC N.C.
SiGe, High-Linearity, 2000MHz to 3900MHz Downconversion Mixer with LO Buffer REVISION NUMBER REVISION DATE 0 1/09 Initial release — 1 5/09 Updated Electrical Characteristics table limits 6 DESCRIPTION PAGES CHANGED Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.