參數(shù)資料
型號: MC33593FTA
廠商: MOTOROLA INC
元件分類: 消費(fèi)家電
英文描述: PLL Tuned UHF Receiver for Data Transfer Applications
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP24
封裝: PLASTIC, LQFP-24
文件頁數(shù): 25/28頁
文件大?。?/td> 681K
代理商: MC33593FTA
N
Go to: www.freescale.com
revision 7.0, 5 February 2002
Motorola, Inc., 2002.
Table 11: Component description
Function
Reference oscillator crystal
Current reference resistor
Strobe oscillator resistor
Crystal load capacitor
- OOK modulation -
IF amplifier AGC capacitor
- FSK modulation -
Low pass filter capacitor
AFC capacitor
Mixer AGC capacitor
Strobe oscillator capacitor
R2 and C5 values correspond to a strobe oscillator period T
Strobe
=3.8ms.
Exemple of crystal reference is given below.
Table 12: Typical crystal characteristics (SMD package)
Parameter
NDK LN-G102-955 (for 868MHz)
Crystal frequency
Load capacitance
Motional capacitance
Static capacitance
Max loss resistance
CAGC capacitor is data rate related in FSK modulation.
Table 13: C2 value versus data rate in FSK modulation
Component
Q
R1
R2
C1
Value
Unit
MHz
k
k
pF
868MHz band: 13.5775
180
±
1%
470
10
C2
100
±
10%
nF
See table 13
C3
C4
C5
C6
C7
C8
100
±
10%
10
±
10%
68
100
100
1
pF
nF
nF
nF
pF
nF
Power supply
decoupling capacitor
C9
Crystal DC
decoupling capacitor
10
nF
Unit
MHz
pF
fF
pF
13.5775MHz
12
4.8
1.43
50
Data Rate
Unit
kBd
nF
1.2
2.4
4.8
9.6
C2
100
±
10%
47
±
10%
22
±
10%
12/10
±
10%
F
Freescale Semiconductor, Inc.
For More Information On This Product,
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