zl30109 Zarlink Semiconductor, zl30109 Datasheet - Page 25

• Manufacturer Part Number: zl30109
• Description: Ds1/e1 System Synchronizer With 19.44 Mhz Output
• Manufacturer: Zarlink Semiconductor

ZL30109
Data Sheet
6.4
Reset Circuit
A simple power up reset circuit with about a 60 µs reset low time is shown in Figure 14. Resistor R
is for protection
P
only and limits current into the RST pin during power down conditions. The reset low time is not critical but should
be greater than 300 ns.
ZL30109
+3.3 V
R
10 kΩ
RST
C
10 nF
R
P
1 kΩ
Figure 14 - Power-Up Reset Circuit
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Zarlink Semiconductor Inc.