MAX9982ETP+T Maxim Integrated Products, MAX9982ETP+T Datasheet - Page 8

• Manufacturer Part Number: MAX9982ETP+T
• Description: Up-Down Converters IC MIXER HI LINEAR SIGE
• Manufacturer: Maxim Integrated Products

Specifications of MAX9982ETP+T

• Maximum Input Frequency: 915 MHz
• Maximum Power Dissipation: 1660 mW
• Mounting Style: SMD/SMT
• Maximum Operating Frequency: 170 MHz
• Maximum Power Gain: 2.6 dB
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: TQFN-20 EP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX9982 downconverter mixer is designed for
GSM and CDMA base station receivers with an RF fre-
quency between 825MHz and 915MHz. It implements
an active mixer that provides 2dB of overall conversion
gain to the receive path, removing the need for an addi-
tional IF amplifier. The mixer has excellent input IP3
measuring +26.8dBm. The device also features inte-
grated RF and LO baluns that allow the mixers to be
driven with single-ended signals.
825MHz to 915MHz, SiGe High-Linearity
Active Mixer
Table 1. Component List
8
13, 14, 16, 17,
3, 5, 7, 9, 12,
C1, C2, C6, C7
COMPONENT
_______________________________________________________________________________________
20, EP
18, 19
C8, C11
C9, C10
6, 10
C4, C5
R3, R4
L1, L2
PIN
11
15
1
2
4
8
C3
R1
U1
T1
RFBIAS
IF-, IF+
LOSEL
NAME
Detailed Description
GND
LO1
LO2
TAP
V
4:1 (200:50)
RF
249Ω ±1%
137Ω ±1%
CC
0.033µF
VALUE
560nH
220pF
330pF
0.1µF
33pF
—
RF Input. This input is internally matched to 50Ω and is DC shorted to ground.
RF Balun Center Tap. Connect bypass capacitors from this pin to ground.
Ground
Bias control for the mixer. Connect a 249Ω resistor from this pin to ground to set the bias
current for the mixer.
Power-Supply Connections. Connect a 0.1µF bypass capacitor from each V
Local Oscillator Select. Set this pin to logic HIGH to select LO1; set to logic LOW to select
LO2.
Local Oscillator Input 1. This input is internally matched to 50Ω and is DC shorted to ground
when selected. Requires a DC-blocking capacitor.
Local Oscillator Input 2. This input is internally matched to 50Ω and is DC shorted to ground
when selected.
Differential IF Output. Connect 560nH pullup inductors and 137Ω pullup resistors from each
of these pins to V
20-pin 5mm x 5mm QFN
SIZE
0603
0603
0603
0603
0603
1008
0603
0603
—
CC
for a 70MHz to 120MHz IF range.
The MAX9982 has one input (RF) that is internally
matched to 50Ω requiring no external matching compo-
nents. A 33pF DC-blocking capacitor is required at the
input since the input is internally DC shorted to ground
through a balun. The input frequency range is 825MHz
to 915MHz.
The mixer can be used for either high-side or low-side
injection applications with an LO frequency range of
Murata GRM1885C1H330J
Murata GRM188R71E333K
Murata GRM188FS1E104Z
Murata GRM1885C1H221J
Murata GRM1885C1H331J
Coilcraft 1008CS-561XJBB
Panasonic ERJ-3EKF2490V
Panasonic ERJ-3EKF1370V
Mini-Circuits TC4-1W-7A
MAX9982ETP
FUNCTION
PART
Pin Description
CC
pin to ground.
LO Inputs
RF Inputs