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參數(shù)資料
| 型號(hào)： | S2036 |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | Open Fiber Control（OFC）System(實(shí)現(xiàn)光纖控制（OFC）的系統(tǒng)) |
| 中文描述： | 開(kāi)放光纖控制（OFC）的系統(tǒng)（實(shí)現(xiàn)光纖控制（大洋洲）的系統(tǒng)） |
| 文件頁(yè)數(shù)： | 12/14頁(yè) |
| 文件大?。?/td> | 119K |
| 代理商： | S2036 |
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12
S2036
OPEN FIBER CONTROL
All dimensions are nominal in inches
Figure 12. 28-Pin Package and Pinout
.289
±
.005
.406
±
.010
.704
±
.005
.029
TYP
TOP
VIEW
.101
±
.010
.018 TYP
.050 PITCH TYP
.092
±
.005
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TESTCK
TESTOUT
OFCDEFB
CNTRL2
LASERFLT
CNTRL0
CNTRL1
LNKSTAT
PRT0
PRT1
PRT2
LDENN
LDENP
GND
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
REFCKIN
LNKCTRL
POR
OFCDEF
CSRW
CSSTROBE
LOOPEN
CNTRL1B
CNTRL0B
TOP
VIEW
LOL1
LOL1B
LOL2
TESTEN
LOL1/1B Single-Ended Application
The LOL1/LOL1B inputs are defined as PECL differ-
ential inputs. The macro design allows either input to
be set to a fixed voltage in a range from 1.25V to
3.75V, and thus used as a threshold voltage for the
other input. If the LOL1B input were connected to a
resistor voltage divider providing ~1.5V, the LOL1
input can then be considered a single-ended TTL
input. A suitable divider can be formed with a 33KW
resistor and a 13KW resistor. For a Vcc of 5.0V, this
would provide a threshold of 1.4V. If the TTL input
levels of VIHmin = 2.0V and VILmax = 0.8V are as-
sumed, the 1.4V threshold gives a minimum of
600mV of margin. The macro requires 300mV for
reliable switching, so this threshold gives a 2x mar-
gin at worst case TTL input levels.
33K
13K
+ 5 V
LOL (TTL)
LOL1
LOL1B
S2036
Figure 11. LOL1/1B Single-Ended TTL Input
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