Philips Semiconductors

Product specification

NE/SA5204A

Wide-band high-frequency amplifier

2

1992 Feb 25

853-1599 05790

DESCRIPTION

The NE/SA5204A family of wideband amplifiers replaces the

NE/SA5204 family. The ‘A’ parts are fabricated on a rugged 2

µm

bipolar process featuring excellent statistical process control.

Electrical performance is nomically identical to the original parts.

The NE/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 NE/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

Ω system and 6dB in a 50Ω system.

The NE/SA5204A is a relaxed version of the NE5205. 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 NE/SA5204A solves these

problems by incorporating a wideband amplifier on a single

monolithic chip.

The part is well matched to 50 or 75

Ω input and output impedances.

The standing wave ratios in 50 and 75

Ω 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 NE/SA5204A is internally compensated and

matched to 50 and 75

Ω. 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

Ω test equipment such as signal

generators, oscilloscopes, frequency counters, and all kinds of

signal analyzers. Other applications at 50

Ω 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 NE/SA5204As in series as

required, without any degradation in amplifier stability.

PIN CONFIGURATION

N, D Packages

8

7

6

5

4

3

2

1

VCC

VIN

GND

GND

VCC

VOUT

GND

GND

TOP VIEW

20dB

SR00193

Figure 1. Pin Configuration

FEATURES

200 MHz,

±0.5dB

350 MHz, -3dB

APPLICATIONS

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

ORDER CODE

DWG #

8-Pin Plastic Dual In-Line Package (DIP)

0 to +70

°C

NE5204AN

SOT97-1

8-Pin Plastic Small Outline (SO) package

0 to +70

°C

NE5204AD

SOT96-1

8-Pin Plastic Dual In-Line Package (DIP)

–40 to +85

°C

SA5204AN

SOT97-1

8-Pin Plastic Small Outline (SO) package

–40 to +85

°C

SA5204AD

SOT96-1