UPC8001GR Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Lista de partido

UPC8001GR

IF AMPLIFIER IC WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES

NEC => Renesas Technology 

Figure 3-6. Noise Figure Measurement

28 V SW

5 pF 0.01µF

14 MIX IN1

Noise source

HP346B

107 nH

0.01µF

11 OSC IN

50 Ω

Spectrum

analyzer

47 dB

RF

Amp

3 kΩ 0.01µF

9

MIX OUT

HP8447F

µPC8001

The noise figure is calculated as follows:

NF = ENR – 10 log (Y – 1)

NF (dB): Noise figure

ENR (dB): ENR of noise source

N2–N1

Y: Y = 10 10

N1 (dBm): Spectrum analyzer indication value at SW OFF.

N2 (dBm): Spectrum analyzer indication value at SW ON.

Remark This measurement measures DSB. To measure SSB, add 3 dB to NF above.

13

Share Link: