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RF3320PCBA Datasheet

  • RF3320PCBA

  • CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER

  • 18頁

  • RFMD

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Preliminary
RF3320
CABLE REVERSE PATH
PROGRAMMABLE GAIN AMPLIFIER
3
Typical Applications
鈥?Euro-DOCSIS/DOCSIS Cable Modems
鈥?CATV Set-Top Boxes
鈥?Telephony Over Cable
鈥?Home Networks
鈥?Automotive/Mobile Multimedia
鈥?Coaxial and Twisted Pair Line Driver
3
-A-
The RF3320 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 software-shutdown 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 out-
put of the balun. Gain is controllable in accurate 1dB
steps. The device is provided in a thermally enhanced,
exposed die flag package.
Optimum Technology Matching廬 Applied
3.90
+ 0.10
0.25
+ 0.05
0.05
+ 0.05
Note 3
4.90
+ 0.20
0.65
NOTES:
1. Shaded lead is pin 1.
2. Lead coplanarity - 0.10 with
respect to datum "A".
3. Lead standoff is specified from
the lowest point on the package
underside.
6.00
+ 0.20
1.40
+ 0.10
EXPOSED DIE
FLAG
8擄 MAX
0擄 MIN
3.302
0.60
+ 0.15
0.24
0.20
2.286
Package Style: SSOP-16 EDF Slug
眉
Si Bi-CMOS
SHDNB
TX EN
NC
VIN
VINB
VCC
VCC
RAMP
1
2
3
4
5
6
7
8
Si BJT
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Features
鈥?Single 5V Supply
鈥?Differential Input and Output
鈥?-30dB to +28dB Voltage Gain Range
鈥?5MHz to 65MHz Operation
鈥?Sophisticated Power Management
鈥?DOCSIS 1.1 RF Compliant
16
Power
Control
GND
NC
NC
VOUT
VOUTB
SDA
CS
SCLK
15
14
13
12
11
Gain Control
and Serial Bus
10
9
Ordering Information
RF3320
RF3320 PCBA
Cable Reverse Path Programmable Gain Amplifier
Fully Assembled Evaluation Board
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 A10 010514
3-27
LINEAR CATV
AMPLIFIERS
Product Description

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