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3-1
3
Preliminary
Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching® Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
ü
SiGe HBT
Si CMOS
4
VOUTB
3
VOUT
2
GND
1
VCC
8VCC
7VIN
6VINB
5VAGC
Biasing &
AGC
Control
RF3330
IF GAIN CONTROLLED AMPLIFIER
• CATV Set-Top Boxes
• Cable Modems
• Cable-Ready TVs
The RF3330 is a gain-controlled amplifier suitable for
application in the IF receive section of a cable tuner. It
consists of a high impedance differential input stage, a
low impedance differential output stage, and a differential
gain-controlled amplifier. The voltage gain may be varied
by applying an analog control voltage. The device is fabri-
cated on an advanced Bi-CMOS process, and is housed
in an eight-lead SOT23 package.
• Single 5V Positive Power Supply
• 26dB Gain Range
• 150MHz Bandwidth
• Compact Package
RF3330
IF Gain Controlled Amplifier
RF3330 PCBA
Fully Assembled Evaluation Board - 75
Ω
RF3330 PCBA
Fully Assembled Evaluation Board - 50
Ω
3
Rev A2 010820
0.127
3°MAX
0°MIN
0.55
0.35
0.365
1.59
1.61
3.00
2.60
3.00
2.80
0.650
0.15
0.05
1.44
1.04
*When Pin 1 is in upper
left, text reads downward
(as shown).
Package Style: SOT23-8
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