LET9045F Datasheet LET9045F | P4-P6

Impedance data LET9045F

4/10 Doc ID 16592 Rev 3

3 Impedance data

Figure 2. Impedance data

Table 6. Impedance data

Frequency Z

(Ω)Z

(Ω)

920 0.8 - j 0.08 5.3 + j 0.63

945 0.7 - j 0.4 5 + j 1.5

960 0.6 - j 0.6 4.7 + j 2

Typical drain

load

Typical

input

Zin

LET9045F Typical performances

Doc ID 16592 Rev 3 5/10

4 Typical performances

Figure 3. Gain vs output power and bias

current, freq = 960 MHz, Vdd = 28 V

Figure 4. Gain and efficiency vs output

power, freq = 960 MHz,

Vdd = 28 V, Idq = 300 mA

Table 7. Output power vs supply voltage

freq = 960 MHz, Vdd = 28 V,

Idq = 300 mA

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Test circuit LET9045F

6/10 Doc ID 16592 Rev 3

5 Test circuit

Figure 5. Test circuit

Table 8. LET9045F components list

Item Qty Part number Vendor Description

R1, R2 2 CR1206-8W-112JB VENKEL 1.1 kΩ 1/8W surface mount chip resistor

R3 1 CR1206-8W-100JB VENKEL 10 Ω 1/8W surface mount chip resistor

Coil 2 BELDEN

Inductor 5 turns

air WOUND#20AWG ID =0.130 in (3.3 mm) bylon

coated

B1,B2,B

3,B4,B5

5 2743021447

FAIR-RITE

CORP

Surface mount EMI sheild bead

C1,C7,

3 T491D106K035AT Kemet 10 µF 35 V tantalum capacitors

C2 1 100 µF 63 V electrolytic capacitor

C3, C4,

C10,

C15

4 ATC100B470XXXX ATC 47 pF chip capacitor

C5, C6 2 ATC200B393MW ATC 39000 pF chip capacitor

C9 1 330 uF 50 V electrolytic capacitor

C11,

C13,

C14

3 27291PC Johanson 0.8-8 pF giga trim variable capacitor

C12 1 ATC100B110XXXX ATC 11 pF chip capacitor

TL1 L = 1.350in [34.29 mm] W = 0.082in [02.08 mm]

TL2 L = 0.144in [3.65 mm] W = 0.082in [02.08 mm]

TL3 L = 0.311in [7.91 mm] W = 0.082in [02.08 mm]

TL4 L = 00.82in [2.09 mm] W = 0.323in [08.21 mm]

TL5 L = 0.194 in [4.94 mm] W = 0.323in [08.21 mm]

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P1-P3 P4-P6 P7-P9 P10-P10

LET9045F

Mfr. #:

Buy LET9045F

Manufacturer:

STMicroelectronics

Description:

RF MOSFET Transistors RF N-CH LdmoST 45W 18.5dB 960MHz

Lifecycle:

New from this manufacturer.

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LET9045F