RMPA1951-102 Datasheet, PDF (3/17 Pages) Raytheon Company – 3V PCS CDMA Power Amplifier Module

Evaluation Board
Instructions
RMPA1951-102
3V PCS CDMA Power
Amplifier Module
ADVANCED INFORMATION
With device marking oriented right side up, RF IN is on the left and RF OUT is on the right.
Blue wire is collector DC voltage input (pin 1). VCC= +3.5V nominal.
Brown wire is reference DC voltage input (pin 3). Vref=+ 2.7V nominal to obtain Iccq= 80mA. Operation at lower
or higher quiescent currents can be achieved by decreasing or increasing Vref voltage relative to +2.7V.
First apply +3.5V to the collector supply (blue wire). Next apply +2.7V to the reference supply to brown wire.
Quiescent collector current with no RF applied will be about 80 mA. Reference supply current with or without RF
applied will be about 13 mA. When turning amplifier off, reverse power supply sequence.
Apply -20dBm RF input power at PCS frequency (1850 -1910MHz). After making any initial small signal
measurements at this drive level, input power may be increased up to a maximum of +6dBm for large signal,
single-tone or digital CDMA measurements. Do not exceed +6dBm input power.
Figure 3
Evaluation Board
Layout and Schematic
Vcc: +3.5V
Icc: ≅ 80mA
BLUE WIRE
G656524
V1
GND
VCC
PCB Specifications:
Material: Rogers RO4003
Dimensions: 2.0”x1.5”x0.032”
Metallization: 1/2 OZ Copper
Cladding
RF IN
Vref: +2.7V
Ibb: ≅ 13 ma
BROWN WIRE
RF IN
VREF
Raytheon
RMPA1951 - 102
PPYYWWXX
(ALT)PPYYWWZZZ
RF OUT
N/C
RF OUT
GND
C1 *
2.2 uF
SMA1
RF IN
VCC
1
6
GND
50 ohm TRL 2 ^Raytheon
RMPA1951
3 PPYYWWZZZ
5 ^{50 ohm TRL}
4
VREF
N/C
7 (package base)
* Minimum VCC bypass capacitance recommended for best RF performance.
SMA2
RF OUT
www.raytheon.com/micro
Characteristic performance data and specifications are subject to change without notice.
Revised August 27, 2001
Page 3
Raytheon RF Components
362 Lowell Street
Andover, MA 01810