RM807 Datasheet, PDF (1/14 Pages) Skyworks Solutions Inc. – Power Amplifier Module for TDMA PCS (1850-1910 MHz)

RM807
Power Amplifier Module for TDMA PCS (1850–1910 MHz)
The RM807 Power Amplifier Module (PAM) for Personal Communications Service Distinguishing Features
(PCS) is a fully matched 6-pin surface mount module developed for PCS and wireless _{• Low voltage positive bias supply}
local loop applications. This small and efficient power amplifier packs a full
• Good linearity
1850–1910 MHz bandwidth coverage into a single compact package. This device
• High efficiency
meets the stringent spectral linearity requirements of Time Division Multiple Access _{• Large dynamic range}
(TDMA) PCS transmission with high power added efficiency to output power of
• 6-pin LCC package
29.5 dBm. A single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit _{(6 x 6 x 1.5 mm)}
(MMIC) contains all active circuitry in the module. The MMIC contains onboard bias _{• Power down control}
circuitry as well as input and interstage matching circuits. The output match is
realized off-chip within the module package to optimize efficiency and power
performance into a 50 ohm load. This device is manufactured with Skyworks’ GaAs ^Applications
Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage • Personal Communications
DC supply operation while maintaining high efficiency and good linearity. Primary bias ^{Services (TDMA)}
to the RM807 can be supplied directly from a three-cell nickel cadmium, single cell ^{• Wireless Local Loop (WLL)}
lithium ion, or other suitable battery with output in the 3–4 volts range. Power down is
accomplished by setting the voltage on the low current reference pin to zero volts. No
external supply side switch is needed as typical “off” leakage is a few microamperes
with full primary voltage supplied from the battery.
Functional Block Diagram
VREF
(3)
VCC1
(1)
VCC2
(4)
RF
Input
(2)
Driver
Stage Bias
Power
Stage Bias
Input
Match
DA
Inter
Stage
PA
Match
MMIC
Output
Match
RF
Output
(5)
(6, 7)
GND
Data Sheet
© 2001, Skyworks Solutions, Inc., All Rights Reserved.
(6, 7)
GND
MODULE
100409F
February 7, 2002