RF3322,RF3322PCBA

Part No.:
RF3322,RF3322PCBA
Download:
Download
Description:
CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER
File Size:
171 K
Page:
14 Pages
Logo:
Maker:
RFMD [ RF MICRO DEVICES ]
PCB Prototype

July 19, 2018:

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RM28802

RM307730

ROS-2432-119+

RP34-TC-01

RS3K

RT7259

RT7297A

RT8016GQW

RX114012

RX-8564

S12IICV2D

PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1
Preliminary
RF3322
CABLE REVERSE PATH
PROGRAMMABLE GAIN AMPLIFIER
3
Typical Applications
• Euro-DOCSIS/DOCSIS Cable Modems
• CATV Set-Top Boxes
• Telephony Over Cable
• Home Networks
• Automotive/Mobile Multimedia
• Coaxial and Twisted Pair Line Driver
3
0.157
0.150
0.0098
0.0040
The RF3322 is a variable gain amplifier for use in CATV
reverse path (upstream) applications. It is DOCSIS-com-
pliant for use in cable modems. The gain control covers a
58dB range and is serially programmable via three-wire
digital bus for compatibility with standard baseband
chipsets. Amplifier shutdown and transmit disable modes
are software- and hardware-controlled. The device is
placed into sleep mode via the serial control bus. The
device operates over the frequency band of 5MHz to
65MHz for use in current U.S. and European systems.
The amplifier delivers up to 60dBmV at the output of the
balun. Gain is controllable in accurate 1dB steps. The
device is provided in an industry-standard QSOP-20
package.
Optimum Technology Matching® Applied
0.0098
0.0040
0.340
0.333
0.025
0.244
0.228
0.0688
0.0532
Dimensions in inches.
8° MAX
0° MIN
0.050
0.016
0.010
0.006
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding mold flash and protrusions.
3. Lead coplanarity: 0 to 0.004 max.
4. Deviation from package center and leadframe center: 0.004 max.
5. Misalignment from top and bottom package centers: 0.004 max.
6. End flash not to exceed 0.006 per side.
Package Style: QSOP-20
ü
Si Bi-CMOS
GND 1
VCC1
2
Si BJT
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Features
• Single 5V Supply
• Differential Input and Output
• -30dB to +28dB Voltage Gain Range
• 5MHz to 65MHz Operation
• Sophisticated Power Management
• DOCSIS 1.1 RF Compliant
20 GND2
19 VCC2
18 TXEN
Power
Control
GND 3
GND1 4
VIN+ 5
VIN-
GND
CS
6
7
8
Gain Control
and Serial Bus
17 NC
16 VOUT+
15 VOUT-
14 RAMP
13 NC
12 SHDN
11 GND
Ordering Information
RF3322
Cable Reverse Path Programmable Gain Amplifier
Fully Assembled Evaluation Board
SDA 9
SCLK 10
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A2 010518
3-27
LINEAR CATV
AMPLIFIERS
Product Description