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RF3321PCBA Datasheet

  • RF3321PCBA

  • REVERSE PATH HIGH OUTPUT POWER PROGRAMMABLE GAIN AMPLIFIER

  • 197.78KB

  • 16頁(yè)

  • RFMD

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Preliminary
RF3321
REVERSE PATH HIGH OUTPUT POWER
PROGRAMMABLE GAIN AMPLIFIER
2
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 RF3321 is a variable gain amplifier for use in CATV
reverse path (upstream) applications. It is designed to be
DOCSIS-compliant for use in cable modems. The gain
control covers a 56dB range and is serially programma-
ble via three-wire digital bus for compatibility with stan-
dard baseband chipsets. Amplifier shutdown and transmit
disable modes are hardware-controlled. The device oper-
ates over the frequency band of 5MHz to 65MHz for use
in current U.S. and European systems. The amplifier
delivers up to +69dBmV at the output of the balun. Gain
is controllable in accurate 1dB steps. The device is pro-
vided in a thermally enhanced, exposed die flag package.
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
Optimum Technology Matching廬 Applied
Package Style: SSOP16 EDF Slug
眉
Si Bi-CMOS
SHDNB
TX EN
NC
VIN
VINB
VCC1
VCC1
RAMP
1
2
3
4
5
6
7
8
Si BJT
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Features
鈥?Differential Input and Output
鈥?31dB Maximum Voltage Gain
鈥?-25dB Minimum Voltage Gain
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
RF3321
RF3321 PCBA
Reverse Path High Output Power Programmable
Gain Amplifier
Fully Assembled Evaluation Board
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Rev A10 010516
2-1
LINEAR CATV
AMPLIFIERS
Product Description

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