INTEGRATED CIRCUITS
SA5204A
Wide-band high-frequency amplifier
Product specification
Replaces data of Feb 25, 1992
IC17 Data Handbook
Philips Semiconductors
1997 Nov 07
Philips Semiconductors Product specification
SA5204AWide-band high-frequency amplifier
DESCRIPTION
The SA5204A family of wideband amplifiers replaces the SA5204
family. The ‘A’ 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 75Ω system and 6dB in a 50Ω system.
The SA5204A is a relaxed version of the SA5205. Minimum
guaranteed bandwidth is relaxed to 350MHz and the “S” 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 75Ω input and output impedances.
The standing wave ratios in 50 and 75Ω 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 75Ω. 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 50Ω test equipment such as signal
generators, oscilloscopes, frequency counters, and all kinds of
signal analyzers. Other applications at 50Ω 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
1
V
CC
2
V
IN
3
GND
GND
TOP VIEW
Figure 1. Pin Configuration
20dB
8
V
CC
7
V
OUT
6
GND
54
GND
FEATURES
•Bandwidth (min.)
200 MHz, ±0.5dB
350 MHz, -3dB
•20dB insertion gain
•4.8dB (6dB) noise figure Z
=75Ω (ZO=50Ω)
O
•No external components required
•Input and output impedances matched to 50/75Ω 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
SR00193
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
8-Pin Plastic Small Outline (SO) package –40 to +85°C SA5204AD SOT96-1
2
853-1599 18662
Philips Semiconductors Product specification
SA5204AWide-band high-frequency amplifier
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
V
CC
V
IN
T
A
P
DMAX
T
J
T
STG
T
SOLD
NOTES:
1. Derate above 25°C, at the following rates
D package at 6.2mW/°C
2. See “Power Dissipation Considerations” section.
Supply voltage 9 V
AC input voltage 5 V
P–P
Operating ambient temperature range
SA grade –40 to +85 °C
Maximum power dissipation
1, 2
TA=25°C(still–air)
D package 780 mW
Junction temperature 150 °C
Storage temperature range –55 to +150 °C
Lead temperature
(soldering 60s)
300 °C
EQUIVALENT SCHEMATIC
V
IN
V
CC
R
1
Q
3
Q
1
R
E1
Q
4
R
F1
R
F2
Figure 2. Equivalent Schematic
R
2
R
0
Q
6
Q
2
R
3
R
E2
Q
5
V
OUT
SR00194
1997 Nov 07
3
Philips Semiconductors Product specification
SA5204AWide-band high-frequency amplifier
DC ELECTRICAL CHARACTERISTICS
VCC=6V, ZS=ZL=ZO=50Ω and TA=25°C, in all packages, unless otherwise specified.
LIMITS
Min Typ Max
V
CC
I
CC
S21 Insertion gain f=100MHz, over temperature 16 19 22 dB
BW Bandwidth ±0.5dB 200 350 MHz
BW Bandwidth –3dB 350 550 MHz
t
R
t
P
Operating supply voltage range Over temperature 5 8 V
Supply current Over temperature 19 25 33 mA
p
p
f=100MHz 25
DC –550MHz 12
f=100MHz 27
DC –550MHz 12
f=100MHz –25
DC –550MHz –18
Noise figure (75Ω) f=100MHz 4.8 dB
Noise figure (50Ω) f=100MHz 6.0 dB
Saturated output power f=100MHz +7.0 dBm
1dB gain compression f=100MHz +4.0 dBm
Third–order intermodulation inter-
cept (output)
Second–order intermodulation inter-
cept (output)
f=100MHz +17 dBm
f=100MHz +24 dBm
Rise time 500 ps
Propagation delay 500 ps
35
34
32
30
28
26
24
22
20
SUPPLY CURRENT—mA
18
16
TA = 25oC
5 5.5 6 6.5 7 7.5 8
SUPPLY VOLTAGE—V
Figure 3. Supply Current vs Supply Voltage
SR00195
9
8
7
NOISE FIGURE—dBm
6
5
10
vcc = 8v
vcc = 7v
vcc = 6v
vcc = 5v
12 468 2 468
ZO = 50Ω
= 25oC
T
A
2
10
FREQUENCY—MHz
Figure 4. Noise Figure vs Frequency
3
10
SR00196
1997 Nov 07
4