ST7538Q datasheet(30/44 Pages) STMICROELECTRONICS

部件名	ST7538Q

功能描述	FSK power line transceiver

PDF	44 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

30 / 44 page

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

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

TALC

TRXTX

RX/TX

ATOP2

STEP NUMBER 16

D03IN1408

XOUT

XIN

D03IN1425A

ST7538Q 数据表(PDF) 30 Page - STMicroelectronics