TSH690_01 Datasheet, PDF (1/14 Pages) STMicroelectronics – 40MHz to 1GHz AMPLIFIER

TSH690
40MHz to 1GHz AMPLIFIER
s Supply voltage: 1.5V to 5V
s >20 mW adjustable output power
s 28 dB gain at 450 MHz
s 21 dB gain at 900 MHz
s 50 Ω matched input and output
s Bias pin to adjust the amplification class
s Power down
DESCRIPTION
The TSH690 is a wide band RF amplifier, de-
signed in advanced bipolar process. At 450 MHz,
it features 28dB gain and +13.5dBm (20 mW) out-
put power at 3V. At 900 MHz, it features 23 dB
gain and +15.5 dBm (35 mW) output power at 3V.
The pin 8 allows a bias current adjust, setting the
RF output level and the amplifier behaviour. It al-
lows using the TSH690 from the linear A-class
trough the AB-class to power-down mode.
The TSH690 is suited to drive power amplifiers in
cellular phones (GSM, TDMA) for which the
’turn-on time’ is controlled by a voltage ramp.
The more than 20 mW output power makes the
TSH690 dedicated as output stage for 433MHz
and 868 MHz ISM transmitters.
APPLICATIONS
s 433 MHz and 868 MHz ISM transmitters
s Telemetering systems
s Remote controls
s Cordless Telephones
s Driver for cellular phones
s Wide band applications
ORDER CODE
Part Number Temperature Range
TSH690ID
-40, +85°C
Package
D
•
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PACKAGE
D
SO8
(Plastic Micropackage)
PIN CONNECTIONS (top view)
March 2001
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