Rainbow Electronics MAX2648 - Manual

General Description
The MAX2648 high-linearity, silicon-germanium (SiGe)
low-noise amplifier (LNA) is designed for 5GHz wireless
LAN systems based on IEEE 802.11a and HiperLAN2
standards. The LNA provides high gain, low noise, and
high linearity performance, allowing it to be used as a
first-stage LNA, an LO buffer, or a transmitter driver
amplifier. This highly versatile amplifier provides 17dB
gain, 1.8dB noise figure, and 0dBm input third-order
intercept point (IIP3) while consuming only 12mA.
The MAX2648 is designed on a low-noise, advanced
SiGe process optimized for high-frequency applica-
tions. It operates over a +2.7V to +3.6V supply range.
The device is packaged in a tiny 2
✕ 3 chipscale pack-
age (UCSP™) with six solder bumps, measuring 1.0mm
✕ 1.5mm.
Applications
IEEE 802.11a Wireless LAN
ETSI HiperLAN/2
5GHz ISM
Microwave Radios
Features
♦ 5GHz to 6GHz Wideband Operation
♦ Low Noise Figure: 1.8dB at 5.25GHz
♦ High Gain: 17dB
♦ High IIP3: 0dBm
♦ +2.7V to +3.6V Single-Supply Operation
♦ Chip-Scale Package (UCSP) Measuring
1.0mm ✕ 1.5mm
MAX2648
5GHz to 6GHz Low-Noise Amplifier
in 6-Pin UCSP
________________________________________________________________ Maxim Integrated Products 1
GND
GND RFOUT
A1 B1 RFIN
B2 GND
V CC
2x3 UCSP
TOP VIEW
(BUMPS ON BOTTOM OF DIE)
A2
A3 B3
BIAS
MAX2648
Pin Configuration
Ordering Information
19-1894; Rev 0; 1/01
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART TEMP. RANGE PIN-PACKAGE
MAX2648EBT -40 °C to +85°C 2 ✕ 3 UCSP
RFIN GND GND
V CC GND RFOUT
A1 A2
B3
A3
L1
22nH
RF
OUTPUT B1 B2
C8*
C1
100pF
C4
0.01 µF
C2
100pF
C3
1000pF
R2
8.2 Ω
RF INPUT
C6
100pF
MAX2648
C7*
*THESE ARE ATC 500-SERIES, LOW-LOSS
PORCELAIN 0603 CAPACITORS.
V CC
OPERATING BAND
5150MHz TO 5350MHz
5725MHz TO 5825MHz
C7*
1.0pF
0.7pF
C8*
0.9pF
0.8pF
WIDTH = 21 mils
LENGTH = 300 mils**
WIDTH = 21 mils
LENGTH = 300 mils**
**REFER TO MAX2648 EV KIT DATA SHEET FOR
MORE LAYOUT INFORMATION.
Typical Application Circuit
UCSP is a trademark of Maxim Integrated Products, Inc.