UPC2708TB
PIN DESCRIPTIONS
Pin No.
Symbol
Applied
Pin
Description
Internal Equivalent
Voltage (V)
Voltage (V)
Circuit
1
Input
1.16
Signal input pin. An internal matching circuit,
configured with resistors, enables 50 ? connection
over a wide bandwidth. A multi-feedback circuit is
designed to cancel the deviations of h FE and
resistance. This pin must be coupled to the signal
source with a blocking capacitor.
6
V CC
OUT
4
Output
Signal output pin. Connect an inductor between
4
this pin and V CC to supply current to the internal
output transistors.
IN
1
6
V CC
4.5 to 5.5
Power supply pin. This pin should be externally
equipped with a bypass capacitor to minimize
ground impedance.
2
GND
0
Ground pins. These pins should be connected to
2, 3, 5
3
5
system ground with minimum inductance. Ground
pattern on the board should be formed as wide as
possible. All the ground pins must be connected
together with wide ground pattern to minimize
impedance difference.
SYSTEM APPLICATION EXAMPLE
EXAMPLE OF DBS CONVERTERS
BS Antenna
UPC2711TB
(DBS ODU)
RF Amp.
Mixer
UPC2712TB
IF Amp.
Parabola
Antenna
EXAMPLE OF 2.4 GHz BAND RECEIVER
Oscillator
UPC2708TB
To
IDU
RX
DEMO
I
Q
SW
TX
PA
Driver
UPC2708TB
PLL
φ
0?
90?
PLL
I
Q
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相关代理商/技术参数
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