1/5
KGF2441
electronic components
E2Q0044-49-21
This version: Feb. 1999
Previous version: Jul. 1998
GENERAL DESCRIPTION
The KGF2441 is a GaAs FET AGC amplifier offering a wide dynamic range of
80 dB. With
control over a +30 dB (max.) to 50 dB (min.) range at 130 MHz, the device also provides excellent
gain slope linearity. The KGF2441 operates with a single 5-V power supply with a low current
operation of 5 mA (typ.) The device is particularly suited to IF-stage amplifier applications, such
as portable handy phones based on CDMA-type digital cellular technology operating over wide
dynamic ranges.
FEATURES
Wide dynamic range: 80 dB (min.)
Excellent gain slope linearity for AGC voltage
Low current operation: 5 V, 5 mA (typ.)
Package: 8PSOP
PACKAGE DIMENSIONS
electronic components
KGF2441
AGC Amplifier
(Unit: mm)
5.20.2
Package material
Pin treatment
Solder plate thickness
Lead frame material
Epoxy resin
Solder plating
5 mm or more
42 alloy
INDEX MARK
0.350.1
5.00.2
1.270.2
6.80.4
1.60.2
0.150.1
0.40MIN
0 to 0.3
3/5
KGF2441
electronic components
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
Item
V
DD1
Symbol
Condition
Max.
Unit
Supply voltage 1
Supply voltage 2
Supply voltage 3
Gain control voltage
V
DD2
V
DD3
V
AGC
Ta = 25C
Ta = 25C
5.5
5.5
5.5
V
DD
2
V
V
V
V
Input voltage
V
IN
Ta = 25C
0.4
V
Min.
--
--
--
0
3
Ta = 25C
Ta = 25C
Output voltage
Total power dissipation
V
OUT
P
tot
Ta = 25C
V
DD
/2+3 or
V
DD
200
V
mW
Storage temperature
T
stg
--
125
C
V
DD
/20.4
--
45
Ta = 25C
Item
Symbol
Condition
Max.
Unit
Min.
Typ.
Ta = 25C , f = 130 MHz , V
DD
= 5 V
Z
IN
Input impedance
1200
W
800
--
F
Noise figure
10
dB
--
--
G
MIN
Minimum gain
50
dB
--
V
AGC
= 5 V
--
|
DD
Supply current
10
mA
--
5
G
MAX
Maximum gain
--
dB
30
V
AGC
= 0 V
--
Output IP
3
IP
3
dBm
--
--
4.5
V
AGC
= 0 V, f
LO
=129 MHz
--
--
175
Output impedance
Z
OUT
W
V
AGC
= 0 V
V
AGC
= 0 V
V
AGC
= 0 V
V
AGC
= 0 V
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