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參數(shù)資料
| 型號： | ZL30109QDG |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | DS1/E1 System Synchronizer with 19.44 MHz Output |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1 MM HEIGHT, MS-026ACD, TQFP-64 |
| 文件頁數(shù)： | 24/36頁 |
| 文件大?。?/td> | 474K |
| 代理商： | ZL30109QDG |
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ZL30109
Data Sheet
24
Zarlink Semiconductor Inc.
The crystal should be a fundamental mode type - not an overtone. The fundamental mode crystal permits a simpler
oscillator circuit with no additional filter components and is less likely to generate spurious responses. A typical
crystal oscillator specification and circuit is shown in Table 7 and Figure 14 respectively.
Figure 14 - Crystal Oscillator Circuit
5.3 Power Up Sequence
The ZL30109 requires that the 3.3 V rail is not powered-up later than the 1.8 V rail. 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 the 3.3 V rail fully first, then power up the 1.8 V rail
2. Power up the 3.3 V rail and 1.8 V rail simultaneously, ensuring that the 3.3 V rail voltage is never lower than the
1.8 V rail voltage minus a few hundred millivolts (e.g. by using a schottky diode or controlled slew rate)
1
Frequency
20 MHz
2
Tolerance
as required
3
Oscillation mode
fundamental
4
Resonance mode
parallel
5
Load capacitance
as required
6
Maximum series resistance
50
Table 7 - Typical Crystal Oscillator Specification
OSCo
1 M
20 MHz
ZL30109
OSCi
100
1 μH
The 100
resistor and the 1 μH inductor may improve
stability and are optional.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 |
| ZL30110LDE | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:PLL FREQ SYNTHESIZER TRIPLE 32QFN - Rail/Tube |
| ZL30110LDE1 | 制造商:Microsemi Corporation 功能描述: |
| ZL30110LDF1 | 制造商:Microsemi Corporation 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Tape and Reel |
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