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参数资料
| 型号： | M2051-11I669.6429 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | XO, clock |
| 英文描述： | VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 669.6429 MHz |
| 封装： | LEADLESS, CERAMIC PACKAGE-36 |
| 文件页数： | 6/12页 |
| 文件大小： | 504K |
| 代理商： | M2051-11I669.6429 |
M2050/51/52 Datasheet Rev 1.0
3 of 12
Revised 23Jun2005
M2050/51/52
SAW PLL FOR 10GBE 64B/66B FEC
Preliminar y In f o r m atio n
DETAILED BLOCK DIAGRAM
Figure 3: Detailed Block Diagram
DIVIDER SELECTION TABLES
Mfin Divider Look-Up Tables (LUT)
The FIN_SEL1:0 pins select the feedback divider value
(“Mfin”). Since the VCSO frequency is fixed, this allows
input reference selection. The look-up tables vary by
device variant.
M2050/51/52: Mfin Value LUT
Mfec and Rfec Divider Look-Up Tables (LUTs)
The FEC_SEL pins select the Mfec/Rfec divider ratio.
The look-up tables vary by device variant. The Mfec
and Rfec values also establish phase detector
frequency. A lower phase detector frequency improves
jitter tolerance and lowers loop bandwidth.
M2050: Map LUT (10GbE to LAN, 255/238 FEC, or 255/237 FEC)
M2050, 51, 52
VC
nVC
nOP_OUT
OP_OUT
OP_IN
nOP_IN
FOUT0
nFOUT0
FOUT1
nFOUT1
or TriState)
FIN_SEL1:0
Mfin
Value
Sample Input Reference Freq. (MHz) Options
For M20501, M2051 & M20522
Note 1: For M2050 with Fvcso = 669.6429
Note 2: For M2051 and M2052 with Fvcso = 625.0000.
00
25
25.00
0 1
5
125.00
1 0
4
156.25
1 1
1
625.00
Table 3: M2050/51/52: Mfin Value LUT
FEC_SEL1:0
1
0
Mfec Rfec
Description
Base Input
Rate (MHz)
Fvcso =
Base Output
Rate (MHz)
For M2050 with Fvcso = 644.5313 (10GbE to 10GbE LAN rate):
0 0
33 32 10GbE to 10GbE LAN
625.0000
644.5313
0 1
33 33 10GbE LAN repeater
644.5313
For M2050 with Fvcso = 669.6429 (10GbE to 10GbE 255/238 FEC rate):
1 0
15 14 10GbE to 10GbE 255/238 FEC
625.0000
669.6429
1 1
15 15 10GbE 255/238 FEC repeater
669.6429
For M2050 with Fvcso = 690.5692 (10GbE LAN to 10GbE LAN 255/238 FEC):
1 0
15 14
10GbE LAN
to 10GbE LAN
255/238 FEC
644.5313
690.5692
1 1
15 15 10GbE LAN 255/238 FEC repeater 690.5692
690.5692
For M2050 with Fvcso = 693.4830 (10GbE LAN to 10GbE LAN 255/237 FEC):
0 0
85 79
10GbE LAN
to 10GbE LAN
255/237 FEC
644.5313
693.4830
0 1
85 85 10GbE LAN 255/237 FEC repeater 693.4830
693.4830
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M2052 | 制造商:ICS 制造商全称:ICS 功能描述:SAW PLL FOR 10GBE 64B/66B FEC |
| M2052-11-625.0000 | 制造商:ICS 制造商全称:ICS 功能描述:SAW PLL FOR 10GBE 64B/66B FEC |
| M2052-11I625.0000 | 制造商:ICS 制造商全称:ICS 功能描述:SAW PLL FOR 10GBE 64B/66B FEC |
| M2053-11-644.5313 | 功能描述:时钟合成器/抖动清除器 FREQUENCY TRANSLATOR RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| M2053-11-644.5313T | 功能描述:时钟合成器/抖动清除器 FREQUENCY TRANSLATOR RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
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