參數(shù)資料
型號: AK2573A
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 125M / 156M Laser Diode Driver + APC
中文描述: 1.25億/ 1.56 apc的激光二極管驅(qū)動器
文件頁數(shù): 13/38頁
文件大?。?/td> 286K
代理商: AK2573A
ASAHI KASEI
[AK2573A]
<MS0189-E-01>
-13-
2004/5
3.1 LVPECL Input (DATAP /DATAN /CLKP /CLKN)
Table 3-2 shows LVPECL input characteristics. The AK2573A LVPECL input, which is biased to0.6 * VDD with
10k
Ω
or more inpedance respectively, supports both AC and DC coupling. Fig 3-2 illustrates LVPECL input with AC
coupling and Fig3-3 illustrates with DC coupling respectively.
Table 3-2 LVPEL Interface characteristics
Item
Single-ended Input Voltage
Swing
Common Voltage
BIAS Voltage
Input Impedance
Set-up Time
Hod Time
Note 1: This parameter is characterized and is not 100% tested.
Symbol
|Vamp|
min
0.1
typ
max
1.2
Unit
V
Remarks
see Fig 3-1
Vcom
Vbias
Zin
tsu
th
0.5*VDD
10
1.5
1.5
VDD – 1.0
V
V
k
Ω
ns
ns
0.6*VDD
see Fig 3-2 and 3-3
see Fig 3-4
Note 1
Fig 3-1 DATA /CLK Input Level
Vcom
Vamp
CLKP/CLK N
DATAP/DATAN
Fig 3-2 LVPECL input with AC coupling Fig3-3 LVPECL input with DC coupling
DATAP
DATAN
CLKP
CLKN
AK2573A
Zin
Vbias
DATAP
CLKP
AK2573A
Zin
Vbias
Zin
DATAN
CLKN
Vbias
100
Ω
0.01uF or more
0.01uF or more
82
Ω
130
Ω
Fig 3-4 Set-up & Hold Time
DATA
(DATAP -
DATAN)
CLK
(CLK P - CLK N)
tsu
th
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