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UPC8172TB Datasheet(PDF) 4 Page - NEC

Part No. UPC8172TB
Description  SILICON MMIC 2.5 GHz FREQUENCY UP-CONVERTER FOR WIRELESS TRANSCEIVER
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPC8172TB Datasheet(HTML) 4 Page - NEC

   
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Preliminary Data Sheet P14729EJ1V0DS00
4
µµµµPC8172TB
PIN EXPLANATION
Pin
No.
Pin
Name
Applied
Voltage
(V)
Pin
Voltage
(V)
Note
Function and Explanation
Equivalent Circuit
1
IFinput
1.4
This pin is IF input to double bal-
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.
2GND
GND
GND pin. Ground pattern on the
board should be formed as wide
as possible. Track Length should
be kept as short as possible to
minimize ground impedance.
3
LOinput
2.3
Local input pin. Recommendable
input level is
−10 to 0 dBm.
5VCC
2.7 to 3.3
Supply voltage pin.
6
RFoutput
Same
bias as
VCC
through
external
inductor
This pin is RF output from DBM.
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.
4PS
VCC/GND
Power save control pin. Bias
controls operation as follows.
Note Each pin voltage is measured with VCC = VPS = VRFout = 3.0 V.
Pin bias
Control
VCC
Operation
GND
Power Save
3
5
6
1
2
5
4
2
VCC
GND


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