ZL30106QDG Zarlink, ZL30106QDG Datasheet - Page 18

• Manufacturer Part Number: ZL30106QDG
• Description: SONET/SDH/PDH Network Interface 64-Pin TQFP
• Manufacturer: Zarlink

Specifications of ZL30106QDG

• Package: 64TQFP
• Power Supply Type: Analog
• Typical Supply Current: 68(Max) mA
• Typical Operating Supply Voltage: 1.8|3.3 V
• Minimum Operating Supply Voltage: 1.62 V
• Maximum Operating Supply Voltage: 3.63 V

Examples:
HMS=1: When ten Normal to Holdover to Normal mode transitions occur and in each case the Holdover mode was
entered for 2 seconds then the accumulated phase change (MTIE) could be as large as 330 ns.
REF
Output
Clock
-
-
-
REF
Output
Clock
REF
Output
Clock
REF
Output
Clock
Phase
Phase
Phase
holdover_drift
mode_change
10 changes
= 10 x (20 ns + 13 ns) = 330 ns
TIE_CLR=0
Return to Normal mode
= 0.01 ppm x 2 s = 20 ns
Normal mode
Phase drift in Holdover mode
= 0 ns + 13 ns = 13 ns
HMS = 0
Figure 10 - Timing Diagram of Hitless Mode Switching
Zarlink Semiconductor Inc.
ZL30106
18
REF
Output
Clock
REF
Output
Clock
REF
Output
Clock
REF
Output
Clock
TIE_CLR=0
Return to Normal mode
Normal mode
Phase drift in Holdover mode
HMS = 1
Data Sheet