UPC2745TB NEC, UPC2745TB Datasheet - Page 6

• Manufacturer Part Number: UPC2745TB
• Description: RF Amplifier 3V Widebnd Amplifier
• Manufacturer: NEC

Specifications of UPC2745TB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TEST CIRCUIT
EXAMPLE OF APPLICATION CIRCUIT
The application circuits and their parameters are for references only and are not intended for use in actual design-ins.
CAPACITORS FOR THE V
the input and output pins.
can be supplied against V
impedance. Their capacitance are therefore selected as lower impedance against a 50 Ω load. The capacitors thus
perform as high pass filters, suppressing low frequencies to DC.
10 MHz operation, increase the value of coupling capacitor such as 10 000 pF. Because the coupling capacitors are
determined by equation, fc = 1/(2πRC).
Capacitors of 1 000 pF are recommendable as the bypass capacitor for the V
The bypass capacitor connected to the V
The coupling capacitors, connected to the input and output pins, are used to cut the DC and minimize RF serial
To obtain a flat gain from 100 MHz upwards, 1 000 pF capacitors are used in the test circuit. In the case of under
IN
50 Ω
1 000 pF
C
1
1
CC
1 000 pF
IN
fluctuation.
C
50 Ω
3
CC
6
V
CC
, INPUT, AND OUTPUT PINS
2, 3, 5
1 000 pF
C
1
4
Data Sheet PU10443EJ1V0DS
CC
pin is used to minimize ground impedance of V
1 000 pF
1
1 000 pF
C
4
C
3
V
6
To stabilize operation,
please connect R
CC
R
50 to 200 Ω
2, 3, 5
1 000 pF
1
C
5
4
1 000 pF
1
1
, C
C
2
5
6
CC
µ
50 Ω
2, 3, 5
PC2745TB,
1 000 pF
pin and the coupling capacitors for
OUT
C
6
4
1 000 pF
CC
C
pin. So, stable bias
2
µ
50 Ω
PC2746TB
OUT
6