參數(shù)資料
型號(hào)： M2050-11-669.6429
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： XO, clock
英文描述： VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 669.6429 MHz
封裝： LEADLESS, CERAMIC PACKAGE-36
文件頁(yè)數(shù)： 6/12頁(yè)
文件大?。?/td> 504K
代理商： M2050-11-669.6429
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
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
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
相關(guān)PDF資料
PDF描述
M2050-13I669.1281 VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 669.1281 MHz
M2052-12I644.5313 VOLTAGE CONTROLLED CLOCK SAW OSCILLATOR, 644.5313 MHz
M2052KATAN10.0000MHZ CRYSTAL OSCILLATOR, CLOCK, 10 MHz, HCMOS/TTL OUTPUT
M2052KATAN60.0000MHZ CRYSTAL OSCILLATOR, CLOCK, 60 MHz, HCMOS/TTL OUTPUT
M2052KATANFREQ CRYSTAL OSCILLATOR, CLOCK, 10 MHz - 60 MHz, HCMOS/TTL OUTPUT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M2050-11-693.4830 制造商:Integrated Device Technology Inc 功能描述:FREQUENCY TRANSLATOR 制造商:Integrated Device Technology Inc 功能描述:9X9 LCC(LEAD FREE) - Bulk
M2050-11-693.4830T 制造商:Integrated Device Technology Inc 功能描述:FREQUENCY TRANSLATOR 制造商:Integrated Device Technology Inc 功能描述:9X9 LCC(LEAD FREE) - Tape and Reel
M2050-11I644.5313 制造商:ICS 制造商全稱:ICS 功能描述:SAW PLL FOR 10GBE 64B/66B FEC
M2050-11I693.4830 制造商:Integrated Device Technology Inc 功能描述:FREQUENCY TRANSLATOR 制造商:Integrated Device Technology Inc 功能描述:9X9 LCC(LEAD FREE) - Bulk
M2050-11I693.4830T 制造商:Integrated Device Technology Inc 功能描述:FREQUENCY TRANSLATOR 制造商:Integrated Device Technology Inc 功能描述:9X9 LCC(LEAD FREE) - Tape and Reel
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