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ST7538Q Datasheet(PDF) 30 Page - STMicroelectronics

Part # ST7538Q
Description  FSK power line transceiver
PDF  44 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7538Q Datasheet(HTML) 30 Page - STMicroelectronics

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Functional description
ST7538Q
30/44
Figure 17. PLI startup timing diagram
5.9
Crystal oscillator
ST7538Q integrates a inverter driver circuit to realize a 16MHz crystal oscillator.
This circuit is able to drive a maximum load capacitance of 16pF with typical quartz ESR of
40
Ω.
If the internal driver circuit is used, only one external crystal quartz and two external load
capacitors (C1 and C2) are needed to realize the oscillator function (Figure 18).
Figure 18. Typical crystal configuration if internal crystal driver circuit is used
If an external oscillator is used, XOUT must be disconnected, while XIN must satisfies the
specifications given in Table 4 (see Figure 19).
TST
4V
0V
TALC
TRXTX
RX/TX
ATOP2
STEP NUMBER 16
17
18
31
D03IN1408
XOUT
XIN
D03IN1425A
C1
C2



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