MAX9993ETP+ Maxim Integrated Products, MAX9993ETP+ Datasheet - Page 9

• Manufacturer Part Number: MAX9993ETP+
• Description: Up-Down Converters IC MIXER DOWN CONV Hz to 2200MHz Downco
• Manufacturer: Maxim Integrated Products

Specifications of MAX9993ETP+

• Maximum Input Frequency: 2200 MHz
• Maximum Power Dissipation: 2200 mW
• Mounting Style: SMD/SMT
• Maximum Operating Frequency: 350 MHz
• Maximum Power Gain: 8.5 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

Table 1. Component List
The core of the MAX9993 is a double-balanced, high-
performance passive mixer. Exceptional linearity is pro-
vided by the large LO swing from the on-chip LO
buffer; IIP3 is typically +23.5dBm, IIP2 is typically
+60dBm, and total cascaded NF is 9.5dB.
The MAX9993 mixer has an IF frequency range of 40MHz
to 350MHz. The differential, open-collector IF output ports
require external pullup inductors to V
applications require a 4:1 balun to transform the 200Ω
differential output impedance to a 50Ω single-ended out-
put. After the balun, VSWR is typically 1.5:1.
The RF and LO inputs are internally matched to 50Ω.
No matching components are required. Return loss at
the RF port is better than 15dB over the entire input
range, 1700MHz to 2200MHz, and return loss at LO1
and LO2 is better than 10dB from 1400MHz to
2000MHz. RF and LO inputs require only DC-blocking
capacitors for interfacing. These DC-blocking capaci-
tors can be part of the matching circuit.
The IF output impedance is 200Ω differential out of the
IC. An external low-loss 4:1 balun brings this imped-
ance down to a 50Ω single-ended output (see the
Typical Application Circuit).
C2, C6, C7, C9, C10
C11, C12, C13
COMPONENT
C3, C5, C8
R3, R4
L1, L2
C1
C4
R1
R2
R5
L3
T1
High-Linearity 1700MHz to 2200MHz Down-
Applications Information
Differential IF Output Amplifier
_______________________________________________________________________________________
Conversion Mixer with LO Buffer/Switch
Input and Output Matching
4:1 (200:50)
VALUE
0.01µF
470nH
150pF
523Ω
383Ω
200Ω
10nH
22pF
10pF
7.2Ω
4pF
High-Linearity Mixer
CC
. Single-ended IF
SIZE
0603
0603
0603
0603
0603
1008
0805
0603
0603
1206
0603
—
Microwave capacitor
Microwave capacitors
Capacitors
Microwave capacitor
Microwave capacitors
Wire-wound high-Q inductors
Wire-wound high-Q inductor
±1% resistor
±1% resistor
±1% resistors
±5% resistor
IF balun
Bias currents for the LO buffer and the IF amplifier were
optimized by fine-tuning the resistors at LOBIAS and
IFBIAS during characterization at the factory. These cur-
rents should not be adjusted. If the 383Ω (±1%) and/or
523Ω (±1%) resistor values are not readily available,
substitute standard ±5% values: 390Ω and 520Ω,
respectively.
A properly designed PC board is an essential part of
any RF/microwave circuit. Keep RF signal lines as short
as possible to reduce losses, radiation, and induc-
tance. For best performance, route the ground pin
traces directly to the exposed pad underneath the
package. This pad should be connected to the ground
plane of the board by using multiple vias under the
device to provide the best RF/thermal conduction path.
Solder the exposed pad on the bottom of the device
package to a PC board exposed pad.
Proper voltage supply bypassing is essential for high-
frequency circuit stability. Bypass each V
TAP with the capacitors shown in the typical application
circuit. Place the TAP bypass capacitor to ground with-
in 100 mils of the TAP pin.
TRANSISTOR COUNT: 989
PROCESS: SiGe BiCMOS
DESCRIPTION
Power Supply Bypassing
Layout Considerations
Chip Information
Bias Resistors
CC
pin and
9