MAX9981ETX+D Maxim Integrated Products, MAX9981ETX+D Datasheet - Page 10

• Manufacturer Part Number: MAX9981ETX+D
• Description: RF Mixer IC MIXER DUAL SIGE al SiGe High-Lineari
• Manufacturer: Maxim Integrated Products

Specifications of MAX9981ETX+D

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

825MHz to 915MHz, Dual SiGe High-Linearity
Active Mixer
10
4, 5, 6, 11,
12, 15, 17,
18, 20, 22,
24, 25, 26,
28, 29, 31,
10, 16, 21,
34, 35, EP
30, 36
13, 14
32, 33
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PIN
19
23
27
1
2
3
7
8
9
IFDIV+, IFDIV-
MAINBIAS
TAPMAIN
IFMAIN+
IFMAIN-,
RFMAIN
DIVBIAS
TAPDIV
LOSEL
NAME
RFDIV
GND
V
LO1
LO2
CC
Main Channel RF Input. This input is internally matched to 50Ω and is DC shorted to ground
through a balun.
Main RF Balun Center Tap. Connect bypass capacitors from this pin to ground.
Bias control for the Main Mixer. Connect a 267Ω resistor from this pin to ground to set the bias
current for the main mixer.
Ground
Bias Control for the Diversity Mixer. Connect a 267Ω resistor from this pin to ground to set the bias
current for the diversity mixer.
Diversity RF Balun Center Tap. Connect bypass capacitors from this pin to ground.
Diversity Channel RF Input. This input is internally matched to 50Ω and is DC shorted to ground
through a balun.
Power-Supply Connections. Connect bypass capacitors as shown in the Typical Application
Circuit.
Differential IF Output for Diversity Mixer. Connect 560nH pullup inductors and 137Ω pullup
resistors from each of these pins to V
Local Oscillator Input 1. This input is internally matched to 50Ω and is DC shorted to ground
through a balun.
Local Oscillator Select. Set this pin to logic HIGH to select LO1; set to logic LOW to select LO2.
Local Oscillator Input 2. This input is internally matched to 50Ω and is DC shorted to ground
through a balun.
Differential IF Output for the Main Mixer. Connect 560nH pullup inductors and 137Ω pullup
resistors from each of these pins to V
CC
CC
for a 70MHz to 100MHz IF range.
for a 70MHz to 100MHz IF range.
FUNCTION
Pin Description