MC13150FTB Просмотр технического описания (PDF) - LANSDALE Semiconductor Inc.
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MC13150FTB Datasheet PDF : 20 Pages
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LANSDALE Semiconductor, Inc.
ML13150
RECEIVER DESIGN CONSIDERATIONS
The curves of signal levels at various portions of the applica-
tion receiver with respect to RF input level are shown in
Figure 17. This information helps determine the network
topology and gain blocks required ahead of the ML13150 to
achieve the desired sensitivity and dynamic range of the
receiver system. The PCB is laid out to accommodate a low
noise preamp followed by the 83.16 MHz SAW filter. In the
application circuit (Figure 15), the input 1.0 dB compression
point is –10 dBm and the input third order intercept (IP3) per-
formance of the system is approximately 0 dBm (see Figure
18).
TYPICAL PERFORMANCE OVER TEMPERATURE
Figures 19–26 show the device performance over tempera-
ture.
Figure 17. Signal Levels versus
RF Input Signal Level
10
0
IF Output
–10
–20
–30
–40
–50
–60
–70
–80
Limiter
Input
Mixer Output
IF Input
Mixer
Input
RF Input
at Transformer
Input
fRF = 50 MHz
fLO = 50.455 MHz; LO Level = –10 dBm
See Figure 15
–70
–60
–50
–40
–30
–20
–10
0
RF INPUT SIGNAL LEVEL (dBm)
Page 11 of 20
www.lansdale.com
Issue A
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