ZL30106_05 ZARLINK [Zarlink Semiconductor Inc], ZL30106_05 Datasheet - Page 33

• Manufacturer Part Number: ZL30106_05
• Description: SONET/SDH/PDH Network Interface DPLL
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

ZL30106
Data Sheet
6.4
Reset Circuit
A simple power up reset circuit with about a 60 µs reset low time is shown in Figure 21. 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.
ZL30106
+3.3 V
R
10 kΩ
RST
C
10 nF
R
P
1 kΩ
Figure 21 - Power-Up Reset Circuit
33
Zarlink Semiconductor Inc.