MC13150FTA Ver la hoja de datos (PDF) - Motorola => Freescale
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MC13150FTA Datasheet PDF : 20 Pages
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MC13150
Receiver Design Considerations
The curves of signal levels at various portions of the
application 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 MC13150 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)
performance of the system is approximately 0 dBm (see
Figure 18).
Typical Performance Over Temperature
Figures 19–26 show the device performance over
temperature.
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)
MOTOROLA ANALOG IC DEVICE DATA
11
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