MC33592FTA Datasheet, PDF (26/28 Pages) Motorola, Inc – PLL Tuned UHF Receiver for Data Transfer Applications

Freescale Semiconductor, Inc.
APPLICATION SCHEMATIC
Table 11: Component description
Component
Q
R1
R2
Function
Reference oscillator crystal
Current reference resistor
Strobe oscillator resistor
Value
315MHz band: 9.864375
434MHz band: 13.580625
180 ± 1%
470
C1
Crystal load capacitor
C2
- OOK modulation -
IF amplifier AGC capacitor
C3
AFC capacitor
C4
Mixer AGC capacitor
C5
Strobe oscillator capacitor
10
100 ± 10%
100 ± 10%
10 ± 10%
68
C6
100
C7
Power supply
decoupling capacitor
100
C8
1
C9
Crystal DC
decoupling capacitor
10
R2 and C5 values correspond to a strobe oscillator period T_Strobe=3.8ms.
Unit
MHz
MHz
kW
kW
pF
nF
pF
nF
nF
nF
pF
nF
nF
Exemples of crystal references are given below
Table 12: Typical crystal characteristics (SMD package)
Parameter
NDK LN-G102-952
(for 315MHz)
NDK LN-G102-877
(for 434MHz)
Crystal frequency
9.864375
13.580625
Load capacitance
12
12
Motional capacitance
3.71
4.81
Static capacitance
1.22
1.36
Max loss resistance
100
50
Unit
MHz
pF
fF
pF
W
26
MC33592 Technical Data
MOTOROLA
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