µPC8103T, µPC8108T
PIN EXPLANATION (µPC8103T, µPC8108T IN COMMON)
PIN NO.
1
2
3
4
5
6
SUPPLY
PIN
PIN NAME
FUNCTION AND APPLICATION
VOLTAGE (V) VOLTAGE (V)
RF input
—
0.77
RF input for mixer. This port
is low impedance.
GND
0
—
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.
OSC Emitter
—
OSC Base
—
0.19
Emitter, base pins of internal
transistor for oscillator.
These pins should be exter-
0.95
nally equipped with resonator
circuit of X’tal or LC.
VCC
1.0 to 2.0
—
Supply voltage pin.
Connect bypass capacitor (eg
1 000 pF) to minimize ground
impedance.
IF Output Same bias
—
IF output pin from mixer.
as VCC
This pin is designed as open
through
collector and should be
external
equipped with inductor (L)
inductor
because of high impedance
(L)
port.
EQUIVALENT CIRCUIT
5
4
3
6
21
Note Each PIN VOLTAGE is measured with VCC = 1.0 V.
3