Preliminary
3
Typical Applications
• CATV Set-Top Boxes
• Cable Modems
• Cable-Ready TVs
RF3330
IF GAIN CONTROLLED AMPLIFIER
3
1.59
1.61
0.365
0.15
0.05
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.
2.80
3.00
0.650
2.60
3.00
3°MAX
0°MIN
1.44
1.04
0.127
*When Pin 1 is in upper
left, text reads downward
(as shown).
0.35
0.55
Optimum Technology Matching® Applied
Package Style: SOT23-8
ü
Si Bi-CMOS
Si BJT
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Features
• Single 5V Positive Power Supply
• 26dB Gain Range
• 150MHz Bandwidth
VCC 1
GND 2
VOUT 3
VOUTB 4
Biasing &
AGC
Control
8 VCC
7 VIN
6 VINB
5 VAGC
• Compact Package
Ordering Information
RF3330
RF3330 PCBA
RF3330 PCBA
IF Gain Controlled Amplifier
Fully Assembled Evaluation Board - 75Ω
Fully Assembled Evaluation Board - 50Ω
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Rev A2 010820
3-1
LINEAR CATV
AMPLIFIERS
Product Description
TEXT*
RFMD [ RF MICRO DEVICES ]
