RF2381PCBA 반도체 회로 부품 판매점
PCS/CELLULAR TDMA/CDMA/W-CDMA LINEAR VARIABLE GAIN AMPLIFIER
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 RF Micro Devices |
4
Typical Applications
• CDMA PCS/Cellular Handsets
• TDMA PCS/Cellular Handsets
RF2381
PCS/CELLULAR TDMA/CDMA/W-CDMA
LINEAR VARIABLE GAIN AMPLIFIER
• W-CDMA Handsets
Product Description
The RF2381 is a linear variable gain amplifier suitable for
use in TDMA and CDMA systems in the cellular or PCS
band and for W-CDMA systems. The features of this
device include linear gain control, high gain, and high lin-
earity. The IC is manufactured on an advanced Gallium
Arsenide Heterojunction Bipolar Transistor (GaAs HBT)
process and is featured in an industry-standard miniature
6-lead plastic SOT package.
1.90
1.80
1.40
.50
.35
3.10
2.70
.10 MAX.
3.00
2.60
.90
.70
1.30
1.00
.25
9° .10
1°
.37 MIN.
All dimensions in mm.
*When Pin 1 is in
upper left, text
reads downward
(as shown).
4
Optimum Technology Matching® Applied
Si BJT
üGaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
RF OUT 1
GND 2
GC 3
6 VCC
ATT ATT 5 GND
4 RF IN
Functional Block Diagram
Rev A1 010511
Package Style: SOT23-6
Features
• 50dB Linear Gain Control Range
• 22dB Maximum Gain
• Single 2.7V to 3.3V Supply
• 35mA Supply Current
• High Linearity
Ordering Information
RF2381
RF2381 PCBA
PCS/Cellular TDMA/CDMA/W-CDMA Linear Vari-
able Gain Amplifier
Fully Assembled Evaluation Board
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
4-43
RF2381
Absolute Maximum Ratings
Parameter
Supply Voltage
DC Current
Operating Ambient Temperature
Storage Temperature
Rating
0 to +5.0
100
-30 to +85
-40 to +150
Unit
VDC
mA
°C
°C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Parameter
Specification
Min.
Typ.
Max.
Unit
Condition
Overall
4 Usable Frequency Range
Linear Gain Control Range
800 to 2100
50
Gain Control Slope
70
Input VSWR
1.5:1
2.5:1
Output VSWR
1.5:1
2.5:1
Output IP3
+23 +26
Noise Figure
9
TDMA
Operating Frequency
1880
Maximum Small Signal Gain
18
20
22
Maximum Average Output Power
+8
Maximum Average Input Power
-9 -8
Adjacent Channel Power
-33 -32
-61 -52
CDMA
Operating Frequency
Maximum Small Signal Gain
Maximum Average Output Power
18
1880
20
+6
22
Maximum Average Input Power
-13
Adjacent Channel Power
-53
W-CDMA
Operating Frequency
Small Signal Gain
Maximum Linear Output Power
Adjacent Channel Power
17.5
1920 to 1980
19.5
+5
22
-46
-43
-43
MHz
dB
dB/V
dBm
dB
MHz
dB
dBm
dBm
dBc
dBc
MHz
dB
dBm
dBm
dBc
MHz
dB
dBm
dBc
dBc
dBc
VCC=2.8V, VGC=2.0V, T=25°C
Over entire gain control range
Over entire gain control range
Maximum gain
VCC=2.8V, VGC=2.0V, T=25°C
TDMA modulation; ACP<-32dBc
TDMA modulation; for any VGC that gives
POUT<+8dBm, ACP <-32dBc, ALT<-52dBc
TDMA modulation; POUT<+8dBm and
PIN<-11dBm, at all VGC.
TDMA modulation; POUT<+8dBm and
PIN<-11dBm, at all VGC.
VCC=2.8V, VGC=2.0V, T=25°C
CDMA modulation; VCC=3.0V, maximum
gain setting, ACP<-52dBc.
CDMA modulation; for any VGC that gives
POUT<+6dBm, ACP <-52dBc
CDMA modulation; VCC=3.0V.
POUT<+6dBm and PIN<-13dBm, at all VGC.
VCC=2.8V, VGC=2.0V, T=25°C
W-CDMA ACP<-46dBc
W-CDMA modulation; POUT<+5dBm and
PIN < -12 dBm
W-CDMA modulation; Over entire gain con-
trol range, PIN<-17dBm
W-CDMA modulation; VGC =1.0V,
PIN < -14 dBm
4-44
Rev A1 010511
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RF2381PCBA amplifier
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