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參數(shù)資料
| 型號(hào)： | ZL30108LDA |
| 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, MO-220, QFN-32 |
| 文件頁數(shù)： | 13/57頁 |
| 文件大小： | 691K |
| 代理商： | ZL30108LDA |
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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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL30108LDE1 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:SONET/SDH Network Interface DPLL |
| ZL30108LDG1 | 制造商:Microsemi Corporation 功能描述:PB FREE SONET/SDH NETWORK INTERFACE DPLL - Trays 制造商:Microsemi Corporation 功能描述:PBFREE SONET&SDH NETWORK I/F DPLL TRAY 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DPLL SONET/SDH 32QFN 制造商:Microsemi Corporation 功能描述:IC DPLL SONET/SDH 32QFN |
| 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: |
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