UPC2749TB Просмотр технического описания (PDF) - California Eastern Laboratories.
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UPC2749TB Datasheet PDF : 6 Pages
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UPC2749TB
PIN DESCRIPTION
Pin
Pin
Applied
No.
Name Voltage
(V)
1
Input
–
Pin
Voltage
(V)
0.82
4
Output
–
2.87
6
VCC
2.7 to 3.3
–
2
GND
0
–
3
5
Description
Internal Equivalent Circuit
Signal input pin. An internal matching
circuit, configured with resistors, enables
50 Ω connection over a wide bandwidth.
A multi-feedback circuit is designed to
cancel the deviations of hFE and resistance.
This pin must be coupled to the signal source
with a blocking capacitor.
Signal output pin. An internal matching
circuit, configured with resistors, enables
50 Ω connection over a wide bandwidth.
This pin must be coupled to the output
load with a blocking capacitor.
Power supply pin. This pin should be
externally equipped with a bypass capacitor
to minimize ground impedance.
Ground pins. These pins should be connected
to 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.
1
IN
3
GND
VCC
6
OUT
4
2
5
GND
SYSTEM APPLICATION EXAMPLE
Example of GPS Receiver
Pre Amp. Unit
RF Amp.
BPF
BPF
LNA
UPC2749TB
UPC2749TB
Mixer IF Amp.
IF Filter
PLL
VCO
Loop Filter
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