MAX2634 Maxim Integrated Products, MAX2634 Datasheet
MAX2634
Manufacturer Part Number
MAX2634
Description
315MHz/433MHz Low-Noise Amplifier
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX2634.pdf
(8 pages)
www.DataSheet4U.com
The MAX2634 low-noise amplifier (LNA) with low-power
shutdown mode is optimized for 315MHz and
433.92MHz automotive remote keyless entry (RKE)
applications. At 315MHz, the LNA achieves 15.5dB
power gain and a 1.25dB noise figure while only con-
suming 2.5mA of supply current from a 2.2V to 5.5V
power supply. An integrated logic-controlled low-power
shutdown mode reduces power consumption to 0.1µA
and replaces the two transistors typically required to
implement the shutdown function in discrete-based
RKE LNA solutions. The device further reduces compo-
nent count by integrating the output matching and DC-
blocking components, and only requires a single
inductor to match the input for best noise figure and
input return loss.
The device is available in a small 6-pin (2.0mm x
2.2mm x 0.9mm) lead-free SC70 package for automo-
tive applications that require visual inspection of PCB
solder connections.
19-4383; Rev 1; 3/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
FREQUENCY
433.92
(MHz)
Remote Keyless Entry (RKE)
Tire Pressure Monitoring Systems (TPMS)
Security
Garage Door Openers
Telemetry Receivers
308
315
418
________________________________________________________________ Maxim Integrated Products
(nH)
General Description
L1
56
56
33
33
Applications
CURRENT
SUPPLY
(mA)
2.5
2.5
2.5
2.5
Amplifier for Automotive RKE
315MHz/433MHz Low-Noise
GAIN
(dB)
15.5
15.5
13.5
13.5
o Optimized for 308MHz, 315MHz, 418MHz,
o 2.2V to 5.5V Supply Voltage Range
o Low Operating Supply Current
o Logic-Controlled 1µA (max) Shutdown
o Typical Performance at 315MHz
o Automotive Temperature Range
o ESD Rating of ±2.5kV (HBM) on All Pins
o AEC-Q100 Qualification
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Functional Diagram/Typical Operating Circuit appears at
end of data sheet.
MAX2634AXT+
and 433.92MHz
2.5mA (typ), 4mA (max)
1.25dB Noise Figure
-16dBm Input IP3
15.5dB Power Gain
-40°C to +125°C
PART
NOISE FIGURE
TOP VIEW
(dB)
1.25
1.25
1.25
1.25
SHDN
GND
GND
-40°C to +125°C
TEMP RANGE
1
2
3
Ordering Information
+
INPUT P1dB
Performance Table
MAX2634
SC70
Pin Configuration
(dBm)
-29
-29
-26
-26
PACKAGE
6
5
4
6 SC70
PIN-
RFOUT
V
RFIN
CC
Features
INPUT IP3
(dBm)
-16
-16
-12
-12
MARK
+ADG
TOP
1
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