KSC3123
KSC3123
Mixer for UHF TV Tuner
• G
CE
=23dB
• C
RE
=0.4pF
3
2
SOT-23
1. Base 2. Emitter 3. Collector
1
NPN Epitaxial Silicon Transistor
Absolute Maximum Ratings
T
a
=25°C unless otherwise noted
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
B
P
C
T
J
T
STG
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current
Base Current
Collector Power Dissipation
Junction Temperature
Storage Temperature
Parameter
Value
30
20
3
50
25
150
1500
-55 ~ 150
Units
V
V
V
mA
mA
mW
°C
°C
Electrical Characteristics
T
a
=25°C unless otherwise noted
Symbol
BV
CEO
I
CBO
I
EBO
h
FE
f
T
C
RE
G
CE
NF
Parameter
Collector-Emitter Breakdown Voltage
Collector Cut-off Current
Emitter Cut-off Current
DC Current Gain
Current Gain Bandwidth Product
Reverse Transfer Capacitance
Conversion Gain
Output Capacitance
Test Condition
I
C
=1mA, I
B
=0
V
CB
=25V, I
E
=0
V
EB
=3V, I
C
=0
V
CE
=10V, I
C
=5mA
V
CE
=10V, I
C
=5mA
V
CB
=10V, I
E
=0, f=1MHz
V
CC
=12V, f=200MHz
f
L
=260MHz
V
CE
=12V, f=200MHz,
f
L
=260MHz
20
60
900
1400
0.4
23
3.8
5.5
0.5
Min.
20
Typ.
Max.
0.1
1
240
MHz
pF
dB
dB
Units
V
µA
µA
h
FE
Classification
Classification
h
FE
R
60 ~ 120
Marking
O
90 ~ 180
Y
120 ~ 240
HA O
h
FE
grade
©2002 Fairchild Semiconductor Corporation
Rev. A2, September 2002
KSC3123
Typical Characteristics
f
T
(MHz), CURRENT GAIN-BANDWIDTH PRODUCT
1000
10000
B
B
h
FE
, DC CURRENT GAIN
100
1000
10
0.1
1
10
100
0.1
1
10
I
C
[mA], COLLECT CURRENT
I
C
(mA), COLLECT CURRENT
Figure 1. DC current Gain
Figure 2. Current Gain Bandwidth Product
10
C
re
(pF), REVERSE TRANSFER CAPACITANCE
28
32
G
CE
(dB), CONVERSION GAIN
24
28
G
CE
20
24
16
20
12
16
8
12
NF
8
4
1
0.1
0.1
0
1
10
-20
-16
-12
-8
-4
0
4
8
V
CB
(V), COLLECTOR-BASE VOLTAGE
Figure 3. C
RE
-V
CB
Figure 4. G
CE
, NF-
30
28
180
P
C
(mW), COLLECTOR DISSIPATION
26
24
150
G
CE
(dB), POWER GAIN
22
20
18
16
14
12
10
8
6
0
2
4
6
8
10
12
14
120
90
60
30
0
0
20
40
o
60
80
100
120
140
I
C
(mA), COLLECT CURRENT
T
A
[ C], AMBIENT TEMPERATURE
Figure 5. G
CE
-I
C
Figure 6. P
C
-T
A
©2002 Fairchild Semiconductor Corporation
Rev. A2, September 2002
NF(dB), NOISE FIGURE
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intended to be an exhaustive list of all such trademarks.
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®
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2
CMOS™
E
HiSeC™
EnSigna™
I
2
C™
Across the board. Around the world.™
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DISCLAIMER
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®
OPTOPLANAR™
PACMAN™
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®
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®
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®
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR
CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Advance Information
Product Status
Formative or In
Design
First Production
Definition
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Preliminary
No Identification Needed
Full Production
Obsolete
Not In Production
©2002 Fairchild Semiconductor Corporation
Rev. I1
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