- 您現(xiàn)在的位置：買賣IC網 > PDF目錄374665 > S3067 (Applied Micro Circuits Corp.) Multirate SONET/SDH/ATM Transceiver with FEC(帶正向糾錯功能的多速率SONET/SDH/ATM收發(fā)器) PDF資料下載
參數(shù)資料
| 型號： | S3067 |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | Multirate SONET/SDH/ATM Transceiver with FEC(帶正向糾錯功能的多速率SONET/SDH/ATM收發(fā)器) |
| 中文描述： | 多速率的SONET / SDH / ATM的收發(fā)器與前向糾錯（帶正向糾錯功能的多速率的SONET / SDH / ATM的收發(fā)器） |
| 文件頁數(shù)： | 5/27頁 |
| 文件大?。?/td> | 246K |
| 代理商： | S3067 |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
5
S3067
MULTIRATE (OC-48/24/12/3/GBE) SONET/SDH/ATM TRANSCEIVER WITH FEC
October 26, 2000 / Revision A
Figure 5. Clock Synthesizer
M
N
PD
LPF
VCO
VCOCLK
REFCLK
FECSEL (0-1)
FECSEL 2
RSCLK
Where N = 14/15/16/17
M = 14/15/16/17
RSCLK =
VCOCLK M
RSCLK Divider
VCO Divider
A high on FECSEL2 selects RSCLK divided by N. A low on FECSEL2 selects the REFCLK. The REFCLK or
RSCLK divided by N is divided by 1/M (multiplied by M) in the loop. The value of M and N can be selected by
FECSEL0 and FECSEL1.
When FECSEL2 = 0, VCOCLK = REFCLK * M. The user must select the proper value of REFCLK and M to get
the desired VCOCLK frequency. When FECSEL2 = 1, VCOCLK = (RSCLK * M)
÷
N. The user must select the
proper M/N ratio (with FECSEL0 and FECSEL1) to get the desired VCOCLK value. (See Tables 3 and 4.)
Example: OC-48 FEC capability of 8 bytes per 255-byte block. Required VCOCLK = 2.6656 GHz.
Method 1:
Required VCOCLK = 2.6656 GHz
FECSEL2 = 0, selects REFCLK
FECSEL0 = 1 and FECSEL1 = 0, selects VCO divider(M) = 16
REFCLK = 2.6656 GHz
÷
16 = 166.60 MHz
VCOCLK = REFCLK
÷
(1/M) = 166.60 * 16 = 2.6656 GHz
Method 2:
Required VCOCLK = 2.6656 GHz
FECSEL2 = 1, selects RSCLK
FECSEL0 = 0 and FECSEL1 = 0, selects VCO divider(M) = 17 and RSCLK divider(N) = 16
RSCLK = (2.6656 * 16)
÷
17 = 2.5088 GHz
VCOCLK = RSCLK
÷
N
÷
(1/M) = 2.5088 GHz
÷
16 * 17 = 2.6656 GHz.
相關PDF資料 |
PDF描述 |
|---|---|
| S3076 | Multi-Rate SONET/SDH Clock Recovery Unit(多速率SONET/SDH時鐘恢復單元) |
| S3083 | SONET/SDH/ATM OC-48 16：1 Transmitter(帶片上高頻鎖相環(huán)的SONET/SDH 16選1傳送器) |
| S3528WH-EA | 3528 Size Flash White Color SMD Type LED |
| S3A_1 | 3.0 AMPS. Surface Mount Rectifiers |
| S3A | 3.0 AMPS. Surface Mount Rectifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S3067TB-156TBGA20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MULTIRATE (OC-48/24/12/3/GBE/FC) SONET/SDH/ATM TRANSCEIVER w/ FEC |
| S3067TB20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MULTIRATE (OC-48/24/12/3/GBE/FC) SONET/SDH/ATM TRANSCEIVER w/ FEC |
| S30680 | 制造商:Microsemi Corporation 功能描述:800V 70A 2PIN DO-203AB - Bulk |
| S306AB | 制造商:Cinch Connectors 功能描述:Conn Wire to Board SKT 6 POS Solder Lug ST Panel Mount |
| S-306-AB | 功能描述:Jones 插頭和插槽 6C PNL MNT SOCKET RoHS:否 制造商:Molex 產品類型:Socket Connectors 系列:Beau 位置/觸點數(shù)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。