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RF Micro Devices |
Preliminary
3
RF3330
IF GAIN CONTROLLED AMPLIFIER
Typical Applications
• CATV Set-Top Boxes
• Cable Modems
• Cable-Ready TVs
Product Description
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.
1.59
1.61
0.365
0.15
0.05
2.80
3.00
0.650
2.60
3.00
1.44
1.04
*When Pin 1 is in upper
left, text reads downward
(as shown).
3°MAX
0°MIN
0.35
0.55
0.127
Optimum Technology Matching® Applied
Si BJT
üSi Bi-CMOS
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
VCC 1
GND 2
VOUT 3
VOUTB 4
Biasing &
AGC
Control
8 VCC
7 VIN
6 VINB
5 VAGC
Functional Block Diagram
Package Style: SOT23-8
Features
• Single 5V Positive Power Supply
• 26dB Gain Range
• 150MHz Bandwidth
• Compact Package
Ordering Information
RF3330
RF3330 PCBA
RF3330 PCBA
IF Gain Controlled Amplifier
Fully Assembled Evaluation Board - 75Ω
Fully Assembled Evaluation Board - 50Ω
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
3
Rev A2 010820
3-1
RF3330
Preliminary
Absolute Maximum Ratings
Parameter
Supply Voltage
Operating Ambient Temperature
Storage Temperature
Rating
7
-40 to +85
-60 to +150
Unit
V
°C
°C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Parameter
3
Overall
DC Specifications
Supply Voltage
Supply Current
AGC Control Voltage
AGC Input Impedance
AC Specifications
3dB Bandwidth
Voltage Gain
Maximum
Minimum
Maximum Input Level
Maximum Output Level
Output 1dB Compression
Output Harmonic Distortion
Input IP3, Maximum Gain
Input IP3, Minimum Gain
Input Noise, Maximum Gain
Input Noise, Minimum Gain
Output Impedance
Input Impedance
Output Load Impedance
Output Load Capacitance
Specification
Min.
Typ.
Max.
Unit
Condition
Typical performance is at TA=+25°C,
VCC = 5 V.
4.75 5.0 5.25 V
18 25 mA
0.5 3.3 V 0.5V=Minimum Gain
3.3V=Maximum Gain
10 MΩ
150 MHz
33.0
34.0
dB VAGC =3.3V
8.0
10.0
dB VAGC =0.5V
50 dBmV(rms) While meeting distortion specification
50 dBmV(rms) While meeting distortion specification
66 dBmV(rms) Maximum Gain
-44 -40 dBc Output level=50dBmV(rms); VAGC=3.3V
45 dBmV(rms) Output level=50dBmV(rms); VAGC=3.3V
60 dBmV(rms) Output level=50dBmV(rms); VAGC=0.5V
4.5 nV/rtHz
42 nV/rtHz
10 Ω Differential
2000
Ω Differential
1 kΩ Differential
2 pF Differential
3-2 Rev A2 010820
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