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參數(shù)資料
| 型號： | RF3322PCBA |
| 廠商： | RF Micro Devices, Inc. |
| 英文描述： | CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER |
| 中文描述： | 電纜反向路徑可編程增益放大器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 169K |
| 代理商： | RF3322PCBA |
3-27
3
L
A
Preliminary
Produc t Desc ription
Ordering Information
Typic al Applic ations
Features
Func tional 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
Optimum Technology Matching Applied
Si BJT
GaAs HBT
Si Bi-CMOS
SiGe HBT
GaAs MESFET
Si CMOS
16
15
18
17
20
19
14
13
12
11
5
6
3
4
1
2
7
8
9
10
GND
VCC1
GND
GND1
VIN+
VIN-
GND
CS
SDA
SCLK
GND
SHDN
NC
RAMP
VOUT-
VOUT+
NC
TXEN
VCC2
GND2
Gain Control
and Serial Bus
Power
Control
RF3322
CABLE REVER S E PAT H
PR OGR AMMABLE GAIN AMPLIFIER
Euro-DOCSIS/DOCSIS Cable Modems
CATV Set-Top Boxes
Telephony Over Cable
Home Networks
Automotive/Mobile Multimedia
Coaxial and Twisted Pair Line Driver
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.
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
RF3322
RF3322 PCBA
Cable Reverse Path Programmable Gain Amplifier
Fully Assembled Evaluation Board
3
Rev A2 010518
0.157
0.150
0.050
0.016
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.
0.0098
0.0040
0.025
8° MAX
0° MIN
0.010
0.006
0.340
0.333
0.244
0.228
0.0688
0.0532
0.0098
0.0040
Dimensions in inches.
Package S tyle: QSOP-20
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