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SA5204A Datasheet, PDF (2/13 Pages) NXP Semiconductors – Wide-band high-frequency amplifier | |||
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Philips Semiconductors
Wide-band high-frequency amplifier
Product specification
SA5204A
DESCRIPTION
The SA5204A family of wideband amplifiers replaces the SA5204
family. The âAâ parts are fabricated on a rugged 2µm bipolar process
featuring excellent statistical process control. Electrical
performance is nomically identical to the original parts.
The SA5204A is a high-frequency amplifier with a fixed insertion
gain of 20dB. The gain is flat to ±0.5dB from DC to 200MHz. The
-3dB bandwidth is greater than 350MHz. This performance makes
the amplifier ideal for cable TV applications. The SA5204A operates
with a single supply of 6V, and only draws 25mA of supply current,
which is much less than comparable hybrid parts. The noise figure is
4.8dB in a 75⦠system and 6dB in a 50⦠system.
The SA5204A is a relaxed version of the SA5205. Minimum
guaranteed bandwidth is relaxed to 350MHz and the âSâ parameter
Min/Max limits are specified as typicals only.
Until now, most RF or high-frequency designers had to settle for
discrete or hybrid solutions to their amplification problems. Most of
these solutions required trade-offs that the designer had to accept in
order to use high-frequency gain stages. These include high power
consumption, large component count, transformers, large packages
with heat sinks, and high part cost. The SA5204A solves these
problems by incorporating a wideband amplifier on a single
monolithic chip.
The part is well matched to 50 or 75⦠input and output impedances.
The standing wave ratios in 50 and 75⦠systems do not exceed 1.5
on either the input or output over the entire DC to 350MHz operating
range.
Since the part is a small, monolithic IC die, problems such as stray
capacitance are minimized. The die size is small enough to fit into a
very cost-effective 8-pin small-outline (SO) package to further
reduce parasitic effects.
No external components are needed other than AC-coupling
capacitors because the SA5204A is internally compensated and
matched to 50 and 75â¦. The amplifier has very good distortion
specifications, with second and third-order intermodulation
intercepts of +24dBm and +17dBm, respectively, at 100MHz.
The part is well matched for 50⦠test equipment such as signal
generators, oscilloscopes, frequency counters, and all kinds of
signal analyzers. Other applications at 50⦠include mobile radio, CB
radio, and data/video transmission in fiber optics, as well as
broadband LANs and telecom systems. A gain greater than 20dB
can be achieved by cascading additional SA5204As in series as
required, without any degradation in amplifier stability.
PIN CONFIGURATION
D Packages
VCC 1
VIN 2
GND 3
GND 4
20dB
8 VCC
7 VOUT
6 GND
5 GND
TOP VIEW
Figure 1. Pin Configuration
SR00193
FEATURES
⢠Bandwidth (min.)
200 MHz, ±0.5dB
350 MHz, -3dB
⢠20dB insertion gain
⢠4.8dB (6dB) noise figure ZO=75⦠(ZO=50â¦)
⢠No external components required
⢠Input and output impedances matched to 50/75⦠systems
⢠Surface-mount package available
⢠Cascadable
⢠2000V ESD protection
APPLICATIONS
⢠Antenna amplifiers
⢠Amplified splitters
⢠Signal generators
⢠Frequency counters
⢠Oscilloscopes
⢠Signal analyzers
⢠Broadband LANs
⢠Networks
⢠Modems
⢠Mobile radio
⢠Security systems
⢠Telecommunications
ORDERING INFORMATION
DESCRIPTION
8-Pin Plastic Small Outline (SO) package
TEMPERATURE RANGE
â40 to +85°C
ORDER CODE
SA5204AD
DWG #
SOT96-1
2
853-1599 18662
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