RF2420 Ver la hoja de datos (PDF) - RF Micro Devices
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RF2420 Datasheet PDF : 6 Pages
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RF2420
9
PROGRAMMABLE ATTENUATOR
Typical Applications
• Power Control in Communication Systems • Commercial and Consumer Systems
• CMOS Compatible Programmable
• Portable Battery-Powered Equipment
Attenuators
Product Description
The RF2420 is a multistage monolithic programmable
attenuator. The device is built using an advanced Gallium
0.157
0.150
-A-
0.008
0.004
Arsenide process technology and has an attenuation pro-
grammability over a 44dB range in 2dB steps. The atten-
0.018
uation is set by five bits of digital data. The input and
0.393
0.014
output of the device have a low VSWR 50Ω match. This
0.386
0.050
unit is intended for use in systems that require RF trans-
mit power control by digital means. Typical applications
are in dual mode IS-54/55 compatible cellular transceiv-
ers and TETRA systems. No negative supply voltages
0.244
0.229
0.068
0.053
are required.
8° MAX
0° MIN
NOTES:
1. Shaded lead is Pin 1.
0.034 0.009
0.016 0.007
2. All dimensions are excluding
mold flash.
3. Lead coplanarity - 0.005 with
respect to datum "A".
9
Optimum Technology Matching® Applied
Si BJT
ü GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
RF IN 1
VDD 2
VDD 3
VDD 4
VDD 5
VDD 6
VDD 7
VDD 8
2 dB
4 dB
8 dB
10 dB
20 dB
16 G2
15 G4
14 G8
13 GND
12 GND
11 G10
10 G20
9 RF OUT
Package Style: SOIC-16
Features
• Single 3V to 6V Supply
• 0dB to 44dB Attenuation Range
• 4dB Insertion Loss
• 5-bit Digitally Controlled Attenuation
• Digitally Controlled Power Down Mode
• DC to 950MHz Frequency Range
Ordering Information
RF2420
Programmable Attenuator
RF2420 PCBA Fully Assembled Evaluation Board
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
Rev A6 010720
9-9
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