MC13030DW View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC13030DW Datasheet PDF : 16 Pages
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MC13030
SW RADIO DESIGN NOTES
The shortwave receiver was designed to cover from 5.0 to
10 MHz. This MC13030 radio has better performance than
most receivers because of the high dynamic range and
spurious rejection of the mixers.
The RF stage bandpass filter for this radio is the same type
as the one used for the car radio, but the series tuned section
was scaled down in impedance to reduce the inductance of
the coil.
Since most SW receivers include an SSB and CW mode,
the detector coil could have a secondary winding to supply
the second IF signal to this section.
The capacitors C10 and C23 have been reduced from
those in the AM radio so that the AGC system can follow
variations in signal level due to fading.
CB RADIO DESIGN NOTES
The RF stage bandpass filter for this radio consists of a
tuned input and a double tuned interstage filter. For lower cost
radios, a single tuned interstage filter could be used.
The schematic also shows a crystal 10.7 MHz 1st IF filter, but
a ceramic or coil filter could also be used. An intermodulation
rejection of 50 dB can be obtained with a ceramic 1st IF filter.
A bipolar transistor is shown for the RF stage. A dual gate
CMOS FET could also be used with G2 connected to the
AGC voltage on Pin 4. A PIN diode is recommended for D2.
COIL DATA
T1 – Toko A119ANS–19335UH
T2 – Toko A7MNS–12704UH
T3 – Toko A7MCS–12705Y
12
MOTOROLA ANALOG IC DEVICE DATA
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