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μ PC8187TB
5. PIN EXPLANATION
Pin
No.
1
Pin
Name
IFinput
Applied
Voltage
(V)
?
Pin
Voltage
(V) Note
1.2
Function and Explanation
This pin is IF input to double bal-
Equivalent Circuit
anced mixer (DBM). The input is
designed as high impedance.
The circuit contributes to sup-
press spurious signal. Also this
symmetrical circuit can keep
specified performance insensitive
to process-condition distribution.
For above reason, double bal-
anced mixer is adopted.
5
6
2
GND
GND
?
GND pin. Ground pattern on the
3
4
board should be formed as wide
as possible. Track Length should
be kept as short as possible to
minimize ground impedance.
1
3
LOinput
?
2.1
Local input pin. Recommendable
input level is ? 10 to 0 dBm.
5
6
V CC
RFoutput
2.7 to 3.3
Same
?
?
Supply voltage pin.
This pin is RF output from DBM.
2
bias as
V CC
through
external
inductor
This pin is designed as open
collector. Due to the high imped-
ance output, this pin should be
externally equipped with LC
matching circuit to next stage.
Note Each pin voltage is measured at V CC = V RFout = 2.8 V.
Data Sheet P15106EJ2V0DS
5
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