E2Q0056-18-X2
¡ electronic components
This version: Oct. 1998
Previous version:
—
KGF2511
¡
electronic components
KGF2511
Medium Power Amplifier for UHF band
GENERAL DESCRIPTION
The KGF2511 is a medium power amplifier for UHF band that features high output power, high
linear gain, low distortion and low-current dissipation. The KGF2511 has specifications guaran-
teed by fixed matching circuit of 2.8V and 900MHz band, although external impedance matching
circuits are required. Because of the high output power and low distortion at the low operating
current, the KGF2511 is ideal as a transmitter driver stage amplifier for portable phones such as
PDC and CDMA.
FEATURES
• High output power: 8dBm (min)
• High linear gain: 27dB (min)
• Low distortion (ACP): –55dBc (max) @P
O
=8dBm,
p/4DQPSK,
±50kHz
• Low voltage and low current operation: 2.8V, 28mA (max)
• Self-bias circuit configuration with built-in source capacitor
• Surface mount 6-pin SOP plastic package
OUTLINE DIMENSIONS
2.9±0.2
0.4±0.1
1.1±0.1
0.8±0.1
0.2 min
2.8
–0.3
+0.2
1.6
–0.1
+0.2
0 ~ 0.15
0.95
1.9±0.2
0.95
0.15
–0.05
(Unit: mm)
+0.1
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¡ electronic components
KGF2511
MARKING
(6)
(5)
(4)
C1XX
(1)
(2)
(3)
(4)
(5)
(6)
IN
GND
NC
V
DD2
/ OUT
GND
V
DD1
(1)
(2)
(3)
LOT NUMBER
(NUMBER)
PRODUCT TYPE
CIRCUIT
V
DD1
(6)
(1)
IN
(4)
V
DD2
/ OUT
(3)
NC
(2), (5)
GND
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¡ electronic components
KGF2511
ABSOLUTE MAXIMUM RATINGS
Item
Supply Voltage
Total power dissipation
Operating temperature
Storage temperature
Symbol
V
DD
P
TOT
T
OPE
T
STG
Conditions
Ta = 25°C
Ta = 25°C
—
—
Unit
V
mW
°C
°C
Min.
—
—
–35
–45
Max.
7
300
+85
+125
ELECTRICAL CHARACTERISTICS
(Ta = 25°C)
Item
Frequency
Operating current
Linear Gain
Output Power
Adjacent channel power 1
Adjacent channel power 2
Symbol
f
I
DD
G
LIN
P
O
ACP1
ACP2
Conditions
—
(*1), P
IN
= –20 dBm
(*1), P
IN
= –30 dBm
(*1), P
IN
= –20 dBm
(*1), P
O
= 8 dBm
±50 kHz offset
(*1), P
O
= 8 dBm
±100 kHz offset
Unit
MHz
mA
dB
dBm
dBc
dBc
Min.
889
—
27
8
—
—
Typ.
—
24
30
10
–60
–70
Max.
960
28
—
—
–55
–65
*1 Self-bias condition: V
DD
= 2.8 V,
p/4
DQPSK
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¡ electronic components
KGF2511
P
O
and I
D
vs. P
IN
20
V
DD
= 2.8V
f = 950MHz
10
Output Power P
O
(dBm)
KGF2511
100
80
Operating Current I
D
(mA)
0
60
–10
40
–20
20
–30
–60
–50
–40
–30
–20
–10
0
0
Input Power P
IN
(dBm)
KGF2511
ACP vs. P
O
–30
V
DD
= 2.8V
f = 950MHz,
p/4
DQPSK
–40
ACP (dBc)
–50
–60
ACP50kHz
–70
ACP100kHz
–80
4
6
8
10
12
14
Output Power P
O
(dBm)
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¡ electronic components
KGF2511
KGF2511
P
O
and ACP vs. P
IN
at three temperatures
20
15
10
Output Power P
O
(dBm)
0
V
DD
= 2.8V
f = 950MHz,
p/4
DQPSK,
Df=±50kHz
–35°C
+25°C
+85°C
–20
–30
–40
–50
–35°C
–60
–70
–80
–30
–25
–20
Input Power P
IN
(dBm)
–15
–10
ACP 50kHz (dBc)
–10
2
0
–5
–10
+85°C
–15
–20
+25°C
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