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F6921 Scheda tecnica(PDF) 8 Page - Renesas Technology Corp

Il numero della parte F6921
Spiegazioni elettronici  Dual-Channel Low Noise Amplifier 10.7 – 12.75 GHz
PDF  17 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

F6921 Scheda tecnica(HTML) 8 Page - Renesas Technology Corp

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F6921 Datasheet
R35DS0092EU0102 Rev.1.02
Nov 14, 2024
Page 8
3. Typical Application Circuit
Figure 3 shows two typical application circuits for biasing the F6921.
The top circuit uses a voltage source Vref to supply the bias reference current Iref through an external resistor
Rref. Vref should be set to achieve the recommended Iref bias currents per the indicated formula. Refer to
Figure 13 for the typical relationship between Viref and Iref.
The bottom circuit uses the programmable IDAC of the Renesas F61XX beamforming IC to provide the
reference current directly to the F6921.
Figure 3. Typical Application Circuits
CH1
CH2
VDD2
VDD1
F6921
VDD
VDD
Vref
IREF
Rref
Viref
CH1
CH2
VDD2
VDD1
IREF
F6921
VDD
VDD
F61xx
IB
Bias
Gen
IDAC
Iref
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