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參數資料
| 型號： | S3027 |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | SONET/SDH/ATM Clock Recovery Unit(帶片上高頻鎖相環的SONET/SDH/ATM時鐘恢復單元) |
| 中文描述： | 的SONET / SDH / ATM的時鐘恢復單元（帶片上高頻鎖相環的的SONET / SDH / ATM的時鐘恢復單元） |
| 文件頁數： | 1/10頁 |
| 文件大小： | 97K |
| 代理商： | S3027 |
1
S3027
S3027
BiCMOS PECL CLOCK GENERATOR
October 18, 1999 / Revision E
DEVICE
SPECIFICATION
FEATURES
Complies with Bellcore and ITU-T
specifications for jitter tolerance, jitter transfer
and jitter generation
On-chip high frequency PLL with internal loop
filter for clock recovery
Supports clock recovery for OC-12/STM-4
(S3027A) (622.08 Mbit/s) or
OC-3/STM-1 (155.52 Mbit/s) (S3027A-1)
NRZ data
19.44 MHz reference frequency
Lock detect—monitors run length (S3027A only)
and frequency
350mW typical power dissipation
Low-jitter PECL interface
Maintains downstream clock in absence of data
inputs
Micro-power Bipolar technology
5V supply
Available in a 20 TSSOP package
GENERAL DESCRIPTION
The function of the S3027 clock recovery unit is to
derive high speed timing signals for SONET/SDH-
based equipment. The S3027 is implemented using
AMCC’s proven Phase Locked Loop (PLL) technology.
The S3027 receives either an OC-12/STM-4 or OC-3/
STM-1 scrambled NRZ signal and recovers the clock
from the data. The chip outputs a differential PECL
bit clock and retimed data. Figure 1 shows a typical
network application.
The S3027 utilizes an on-chip PLL which consists of
a phase detector, a loop filter, and a voltage con-
trolled oscillator (VCO). The phase detector
compares the phase relationship between the VCO
output and the serial data input. A loop filter converts
the phase detector output into a smooth DC voltage,
and the DC voltage is input to the VCO whose fre-
quency is varied by this voltage. A block diagram is
shown in Figure 2.
Figure 1. System Block Diagram
Transceiver
S3028
Controller
Controller
Transceiver
S3028
8
8
8
8
Fiber
Optic
Module
Fiber
Optic
Module
S3027
S3027
相關PDF資料 |
PDF描述 |
|---|---|
| S3028 | SONET/SDH/ATM OC-3/12 Transceiver(帶片上鎖相環，頻率可選的SONET/SDH收發器（完全集成OC-3/12接口器件）) |
| S3029 | Clock Synthesis and Recovery Unit(數據傳送速率155 MBit/S的時鐘合成和恢復單元) |
| S302H | S302H |
| S302H3 | S302H |
| S302H3B | S302H |
相關代理商/技術參數 |
參數描述 |
|---|---|
| S3028 | 制造商:ASI 制造商全稱:ASI 功能描述:SILICON ABRUPT VARACTOR DIODE |
| S3029 | 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:SONET/SDH/ATM 155 MBIT/S QUAD TRANSCEIVER |
| S3029A | 制造商:AppliedMicro 功能描述: |
| S302AB | 制造商:Cinch Connectors 功能描述:Conn Wire to Board SKT 2 POS Solder Lug ST Panel Mount |
| S-302-AB | 功能描述:Jones 插頭和插槽 2C PNL MNT SOCKET RoHS:否 制造商:Molex 產品類型:Socket Connectors 系列:Beau 位置/觸點數量:8 電壓額定值:250 V 電流額定值:10 A 外殼材料:Thermoplastic 觸點材料:Phosphor Bronze 觸點電鍍:Tin-Lead |
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