參數(shù)資料
型號: ZL30108LDG1
廠商: XILINX INC
元件分類: 數(shù)字傳輸電路
英文描述: ATM/SONET/SDH SUPPORT CIRCUIT, QCC32
封裝: 5 X 5 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, MO-220, QFN-32
文件頁數(shù): 13/57頁
文件大小: 691K
代理商: ZL30108LDG1
ZL30108
Data Sheet
20
Zarlink Semiconductor Inc.
7.3
Power Up Sequence
The ZL30108 requires that the 3.3 V is not powered after the 1.8 V. This is to prevent the risk of latch-up due to the
presence of parasitic diodes in the IO pads.
Two options are given:
1. Power-up 3.3 V first, 1.8 V later
2. Power up 3.3 V and 1.8 V simultaneously ensuring that the 3.3 V power is never lower than 1.8 V minus a few
hundred millivolts (e.g., by using a schottky diode or controlled slew rate)
7.4
Reset Circuit
A simple power up reset circuit with about a 60
μs reset low time is shown in Figure 12. Resistor R
P is for protection
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.
Figure 12 - Power-Up Reset Circuit
+3.3 V
RST
RP
1 k
Ω
C
10 nF
R
10 k
Ω
ZL30108
相關(guān)PDF資料
PDF描述
ZL30316GKG2 SPECIALTY TELECOM CIRCUIT, PBGA256
ZL30316GKG SPECIALTY TELECOM CIRCUIT, PBGA256
ZL30402/QCC1 ATM/SONET/SDH SUPPORT CIRCUIT, PQFP80
ZL30402/QCG1 ATM/SONET/SDH SUPPORT CIRCUIT, PQFP80
ZL50112GAG2 SPECIALTY TELECOM CIRCUIT, PBGA552
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL30109 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:DS1/E1 System Synchronizer with 19.44 MHz Output
ZL30109_05 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:DS1/E1 System Synchronizer with
ZL30109QDG 制造商:Microsemi Corporation 功能描述:
ZL30109QDG1 制造商:Microsemi Corporation 功能描述:DS1/E1 System Synchronizer 64-Pin TQFP 制造商:Microsemi Corporation 功能描述:DS1/E1 SYS. SYNCH WITH 19.44MHZ 制造商:Microsemi Corporation 功能描述:DS1/E1 SYS SYNCHRONIZER 64TQFP - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC SYNCHRONIZER DPLL 64TQFP 制造商:Microsemi Corporation 功能描述:IC SYNCHRONIZER DPLL 64TQFP
ZL30110 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Telecom Rate Conversion DPLL