Rainbow Electronics MAX2658 - Manual

General Description
The MAX2657/MAX2658 high-gain, low-noise amplifiers
(LNAs) are designed for GPS L1, Galileo, and
GLONASS applications. Designed in Maxim’s
advanced SiGe process, the devices achieve a high
gain and an ultra-low-noise figure while maximizing the
input-referred 1dB compression point and the 3rd-order
intercept point.
The MAX2657/MAX2658 operate from a +1.6V to +3.3V
single supply. The MAX2657 is optimized for low current.
The MAX2658 is optimized for high linearity. The shut-
down feature in the device reduces the supply current to
be less than 1µA. The MAX2657/MAX2658 are available
in a very small, lead-free, RoHS-compliant, 0.86mm x
1.26mm x 0.65mm, wafer-level package (WLP).
Applications
Automotive Navigation
Location-Enabled Mobile Devices
Telematics (Asset Tracking and Management)
Personal Navigation Devices (PNDs)
Cellular Phones with GPS
Notebook PCs/Ultra-Mobile PCs
Recreational, Marine Navigation
Avionics
Watches
Features
♦ High-Power Gain: 19dB (MAX2657)
♦ Ultra-Low-Noise Figure: 0.8dB
♦ Integrated 50Ω Output Matching Circuit
♦ Low Supply Current: 4.1mA (MAX2657)
♦ Wide Supply Voltage Range: 1.6V to 3.3V
♦ Low Bill of Materials: One Inductor, Two
Capacitors
♦ Small Footprint: 0.86mm x 1.26mm
♦ Thin Profile: 0.65mm
♦ 0.4mm-Pitch Wafer-Level Package (WLP)
MAX2657/MAX2658
GPS/GNSS Low-Noise Amplifiers
________________________________________________________________ Maxim Integrated Products 1
B2
RFIN
+
RFOUT
V CC
SHDN
RF
OUTPUT
GND
RF
INPUT
L1 = 6.2nH (MAX2657)
C1 = 820pF (MAX2657)
C2 = 33nF L1 = 2.7nH (MAX2658)
C1 = 1500pF (MAX2658)
L1 C1
C2
V CC
MAX2657
MAX2658
B1
A2
BIAS
A1
C2 GND C1
Pin Configuration/Typical Application Circuit
Ordering Information
19-4956; Rev 0; 9/09
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.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
PART TEMP RANGE PIN-PACKAGE
MAX2657EWT+T -40°C to +85°C 6 WLP
MAX2658EWT+T -40°C to +85°C 6 WLP
EVALUATION KIT
AVAILABLE