DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUITS
µ
PC8103T,
µ
PC8108T
MIXER + OSCILLATOR IC FOR PAGER SYSTEM
DESCRIPTION
µ
PC8103T and
µ
PC8108T are silicon monolithic integrated circuits designed as mixer-oscillator series for
pager system. Due to 1 V supply voltage, these ICs are suitable for low voltage pager system. These ICs are
packaged in 6 pin mini mold suitable for high-density surface mounting.
These ICs are manufactured using NEC’s 20 GHz f
T
NESAT
TM
III silicon bipolar process. This process uses
silicon nitride passivation film and gold electrodes. These materials contributes excellent DC, AC perform-
ance. Thus, these ICs are utilized as 1 V voltage ICs.
FEATURES
• 1 V supply voltage: V
CC
= 1.0 V to 2.0 V
• Low current consumption
• Wide band operation
µ
PC8103T: l
CC
= 1.0 mA
µ
PC8108T: l
CC
= 1.5 mA
TYP.
TYP.
@ V
CC
= 1.0 V
@ V
CC
= 1.0 V
µ
PC8103T: f
RF
= 150 MHz to 330 MHz
µ
PC8108T: f
RF
= 150 MHz to 930 MHz
• High-density surface mounting: 6 pin mini mold
ORDERING INFORMATION
PART NUMBER
PACKAGE
6pin mini mold
SUPPLYING FORM
Embossed tape 8 mm wide, Pin 1, 2, 3 face to perforation side of
tape. QTY 3 kp/Reel
µ
PC8103T-E3
µ
PC8108T-E3
Note
To order evaluation samples, please contact your local NEC sales office. (Order number:
µ
PC8103T,
µ
PC8108T)
PIN CONNECTION
(Top View)
(Bottom View)
4
5
6
4
5
6
3
2
1
1:
2:
3:
4:
5:
6:
RF INPUT
GND
OSC EMITTER
OSC BASE
V
CC
IF OUTPUT
2
1
C2C
Markings
3
µ
PC8103T: C2C
µ
PC8108T: C2F
Caution Electro-static sensitive devices
Document No. IC-3450
(O.D. No. IC-8980)
Date Published July 1995 P
Printed in Japan
©
1995
µ
PC8103T,
µ
PC8108T
INTERNAL BOLOCK DIAGRAM (IN COMMON)
3
4
2
BIAS
5
1
6
Note
Resonator must be externally
equipped with 3 and 4 pins.
(Refer to pin explanations)
SYSTEM APPLICATION EXAMPLE AS PAGER
150 MHz
to
330 MHz
µ
PC8102T
µ
PC8103T
BPF
BPF
IF
450 MHz to 930 MHz
Low noise
transistor
µ
PC8108T
BPF
BPF
IF
This system application example schematically presents the chip set product line-up only, and does not
imply a detail application circuit (In the case of application circuit example for
µ
PC8103T and
µ
PC8108T, please
refer to page 21).
For details on the related devices, refer to the latest data sheet of each device.
2
µ
PC8103T,
µ
PC8108T
PIN EXPLANATION (
µ
PC8103T,
µ
PC8108T IN COMMON)
PIN NO.
1
PIN NAME
RF input
SUPPLY
PIN
VOLTAGE (V) VOLTAGE (V)
—
0.77
FUNCTION AND APPLICATION
RF input for mixer. This port
is low impedance.
This ground pin must be
connected to the system
ground with minimum
inductance. Ground pattern
on the board should be
formed as wide as possible.
Track length should be kept as
short as possible.
Emitter, base pins of internal
transistor for oscillator.
These pins should be exter-
nally equipped with resonator
circuit of X’tal or LC.
Supply voltage pin.
Connect bypass capacitor (eg
1 000 pF) to minimize ground
impedance.
6
IF Output
Same bias
as V
CC
through
external
inductor
(L)
—
IF output pin from mixer.
This pin is designed as open
collector and should be
equipped with inductor (L)
because of high impedance
port.
EQUIVALENT CIRCUIT
2
GND
0
—
5
4
3
6
3
OSC Emitter
—
0.19
2
1
4
OSC Base
—
0.95
5
V
CC
1.0 to 2.0
—
Note
Each PIN VOLTAGE is measured with V
CC
= 1.0 V.
3
µ
PC8103T,
µ
PC8108T
Unless otherwise specified, both product in common.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
SYMBOL
V
CC
P
D
RATING
4.0
280
−40
to +85
−55
to +150
5
UNIT
V
mW
°C
°C
V
T
A
= +25
°C
CONDITIONS
T
A
= +25
°C,
Pin 5 and 6
Mounted on 50
×
50
×
1.6 mm double copper
clad epoxy glass PWB at T
A
= +85
°C
Operating Temperature
Storage Temperature
IF Output Voltage Peak Level
T
A
T
stg
V
IFout MAX.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Operating Temperature
RF Frequency
RF Frequency
SYMBOL
V
CC
T
A
f
RF
f
RF
MIN.
1.0
−25
150
150
TYP.
1.05
+25
MAX.
2.0
+75
330
930
UNIT
V
°C
MHz
MHz
NOTE
Pin 5 and 6
Possible to oscillate
µ
PD8103T
µ
PD8108T
ELECTRICAL CHARACTERISTICS (T
A
= +25 ˚C, V
CC
= 1.0 V, Z
S
= 50
Ω,
Z
L
= 2 kΩ, f
IF
= 20 MHz,
P
Loin
=
−21
dBm externally, Upper local
Note
)
PARAMETER
Circuit Current
Conversion Gain 1
SYMBOL
MIN.
I
CC
CG1
0.55
13
µ
PC8103T
TYP.
1
16
MAX.
1.4
19
MIN.
1.0
17.5
µ
PC8108T
TYP.
1.5
20.5
MAX.
2.1
23.5
UNIT
mA
dB
CONDITIONS
No input signals
f
RFin
= 150 MHz,
TEST CIRCUIT 1
f
RFin
= 280 MHz,
TEST CIRCUIT 1
f
RFin
= 330 MHz,
TEST CIRCUIT 1
f
RFin
= 450 MHz,
TEST CIRCUIT 1
f
RFin
= 930 MHz,
TEST CIRCUIT 1
Conversion Gain 2
CG2
12.5
15.5
18.5
17
20
23
dB
Conversion Gain 3
CG3
12.5
15.5
18.5
17
20
23
dB
Conversion Gain 4
CG4
–
–
–
16
19
22
dB
Conversion Gain 5
CG5
–
–
–
12
15
18
dB
Note
Upper local means ‘f
IF
= f
Loin
– f
RFin
’.
4
µ
PC8103T,
µ
PC8108T
STANDARD CHARACTERISTICS FOR REFERENCE (T
A
= +25 ˚C, V
CC
= 1.0 V, Z
S
= Z
L
= 50
Ω,
f
IF
= 20 MHz, P
Loin
externally, Upper local)
µ
PC8103T
PARAMETER
SYMBOL
P
Loin
=
–21 dBm
13
P
Loin
=
–10 dBm
9
µ
PC8108T
P
Loin
=
–21 dBm
13
P
Loin
=
–10 dBm
8.5
UNIT
CONDITIONS
Noise Figure 1
NF1
dB
f
RFin
= 150 MHz,
TEST CIRCUIT 2
f
RFin
= 280 MHz,
TEST CIRCUIT 2
f
RFin
= 330 MHz,
TEST CIRCUIT 2
f
RFin
= 450 MHz,
TEST CIRCUIT 2
f
RFin
= 930 MHz,
TEST CIRCUIT 2
Noise Figure 2
NF2
11.5
8
12
7
dB
Noise Figure 3
NF3
12
9
13
8
dB
Noise Figure 4
NF4
–
–
13.5
8
dB
Noise Figure 5
NF5
–
–
18
11.5
dB
Note
Upper local means ‘f
IF
= f
Loin
– f
RFin
’.
5
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