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參數(shù)資料
| 型號： | ZL30406 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | SONET/SDH Clock Multiplier PLL |
| 中文描述： | SONET / SDH的時鐘倍頻鎖相環(huán) |
| 文件頁數(shù)： | 5/21頁 |
| 文件大?。?/td> | 307K |
| 代理商： | ZL30406 |
ZL30406
Data Sheet
5
Zarlink Semiconductor Inc.
1.0 Functional Description
The ZL30406 is an analog phased-locked loop which provides rate conversion and jitter attenuation for
SONET/SDH OC-48/STM-16, OC-12/STM-4 and OC-3/STM-1 applications. A functional block diagram of the
ZL30406 is shown in Figure 1 and a brief description is presented in the following sections.
1.1 Frequency/Phase Detector
The Frequency/Phase Detector compares the frequency/phase of the input reference signal with the feedback
signal from the Frequency Divider circuit and provides an error signal corresponding to the frequency/phase
difference between the two. This error signal is passed to the Loop Filter circuit and averaged to control the
VCO frequency.
1.2 Loop Filter
The Loop Filter is a low pass filter. This low pass filter ensures that the network jitter requirements are met for an
input reference frequency of 19.44 MHz. The corner frequency of the Loop Filter is configurable with an external
capacitor and resistor connected to the LPF pin and ground as shown below.
Figure 3 - External Loop Filter
1.3 VCO
The voltage-controlled oscillator (VCO) receives the filtered error signal from the Loop Filter, and based on the
voltage of the error signal, generates a primary frequency. The VCO output is connected to the Output Interface
Circuit that divides VCO frequency and buffers generated clocks.
R
F
C
F
Internal Loop
Filter
ZL30406
LPF
RF=8.2 k
, CF=470 nF
(for 14 kHz PLL bandwidth)
相關(guān)PDF資料 |
PDF描述 |
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| ZL30406QGC | Digital Multimeter Clamp Battery Size Code:9V; Current Measuring Range:40.00/400.0A; Current Setting AC:400A; Current Setting DC:400A; Resistance Measuring Range:400 Ohm, 4000 - 40 - 400 kOhm; Voltage Measuring Range AC:600 V RoHS Compliant: NA |
| ZL30406QGC1 | SONET/SDH Clock Multiplier PLL |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL30406_06 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:SONET/SDH Clock Multiplier PLL |
| ZL30406QGC | 制造商:Zarlink Semiconductor Inc 功能描述:PLL CLOCK MLTPLR SGL UP TO 19.44MHZ 64TQFP - Trays |
| ZL30406QGC1 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:SONET/SDH Clock Multiplier PLL |
| ZL30406QGG1 | 制造商:Microsemi Corporation 功能描述:IC PB FREE T1/E1 SYS. SYNC+STRATUM 3 H/O 制造商:Microsemi Corporation 功能描述:PB FREE SONET/SDH CLOCK MULTIPLIER PLL - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC PLL SONET/SDH CLK MULT 64TQFP 制造商:Microsemi Corporation 功能描述:IC PLL SONET/SDH CLK MULT 64TQFP |
| ZL30407 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:SONET/SDH Clock Multiplier PLL |
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