- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄382965 > FOA2322A (INFINEON TECHNOLOGIES AG) 3.2 Gbi t /s Laser Driver IC for Telecom and Datacom Applications PDF資料下載
參數(shù)資料
| 型號(hào)： | FOA2322A |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 3.2 Gbi t /s Laser Driver IC for Telecom and Datacom Applications |
| 中文描述： | 3.2陸基攔截噸/ s的電信和數(shù)據(jù)通信應(yīng)用激光驅(qū)動(dòng)器集成電路 |
| 文件頁(yè)數(shù)： | 17/37頁(yè) |
| 文件大小： | 542K |
| 代理商： | FOA2322A |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)當(dāng)前第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)
FOA2322A
Electrical Characteristics
Preliminary Data Sheet
13
2001-05
14)
If data input duty cycle falls below lower limit or exceeds upper limit the laser will be disabled by ISM circuit.
On the other hand, the laser will be enabled whenever the data input duty cycle goes back to the allowed range.
Data input duty cycle refers to the quotient given by number of ones divided by number of zeros within serial
data stream. The ISM-circuit evaluates the mean value of the duty cycle (integrator). The cutoff frequency of
ISM
f
ISM
is defined for data pattern 1010 …. In case of data frequency is to small the ISM circuit will disable
the laser because of long High- or Low-series. The ISM-circuit can be deactivated by a 25 k
resistor from
CISM to
V
EE
. The ILM-circuit additionally is used for ac-coupled data inputs. It works as a peak detector. The
laser will be disabled if data are set to a static state. The cutoff frequency of ILM fILM is defined for data pattern
1010 …. (Specified value is for data input voltage swing of 400 mV).The ILM-circuit is direct AC-coupled to the
data input. So the cutoff frequency depends on data input swing. The ILM-circuit can be deactivated by a short
from CILM to
V
CC
.
15)
A capacitor within this range programs the time (or frequency).
16)
Open collector output for pulling up a resistor to monitor the current.
17)
Difference and temperature drift of passive IC component parameters match to passive IC component
parameters in other circuit parts.
18)
The supervisor circuit will detect a failure condition if MD voltage exceeds
V
MDnom
±
2 dB range.
V
MDnom
is
given by nominal voltage level at MD which is set by
V
MDR
. The deviation is calculated with 20lg(
V
MD
/
V
MDnom
).
The deviation of optical power is calculated with 10lg(
V
MD
/
V
MDnom
).
19)
The supervisor circuit will detect no failure condition if MD input voltage ranges from
V
MDnom
- 1.2 dB to
V
MDnom
+ 1.2 dB.
V
MDnom
is given by nominal voltage level at MD which is set by
V
MDR
. The deviation is
calculated with 20lg(
V
MD
/
V
MDnom
). The deviation of optical power is calculated with 10lg(
V
MD
/
V
MDnom
).
20)
A failure condition will be reported by LF = H if this condition lasts for
t
FDEL
. Minimal capacitor on CFDEL has
to be chosen that the failure recognition time is longer than the setting time of the bias controller.
21)
Time between LF high (or LEN high) and LDOFF high.
22)
At supply voltages below
V
CC
threshold the laser diode bias and modulation current will be held disabled and
LDOFF will be held high. Above the laser diode will be enabled after the Power On Delay.
23)
The Power On Delay is the Reset time after
V
CC
voltage has risen above the
V
CC
reset threshold. During the
Power On Delay the Laser diode bias and modulation current will be held disabled and LDOFF will be held
high.
24)
Temperature and voltage drift are included.
25)
The minimal enable pulse width time for RST = L or RSTN = H or LEN = L has to be longer then
t
FDEL
.
26)
Out of am
PILOT
and ab
PILOT
a factor K = ab
PILOT
/am
PILOT
can be defined, which is an important factor for the
pilot control (for definition of am
PILOT
and ab
PILOT
see
Figure 8
). For most laser diodes the optimum value of
K is 1.44 (default value). If K is set close to factor 2 the modulation current and jitter may increase. If K is set
close to factor 1 the modulation current may decrease. In both cases a malfunction of laser control is possible.
A resistor between
V
CC
and RMRIP can be used for decreasing am
PILOT
. Further a resistor between
V
CC
and
RBRIP can be used for decreasing ab
PILOT
. So the factor K can be adjusted. For default factor K let RBRIP
and RMRIP connected to
V
CC
(=
V
CCA
).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FOA3251B1 | High Speed Clock and Data Recovery for Fiber Optic Applications |
| foa3251d | 2.5 Gb/s Laser Driver(2.5 Gb/s激光驅(qū)動(dòng)器) |
| foa3251p | Clock & Data Recovery Chip CDR 2.5 - 2.66 Gbit/s, 3.3 to 5.0 V(時(shí)鐘及數(shù)據(jù)恢復(fù)芯片) |
| FOA41001B1 | Semiconductor Solutions for High Speed Communi cation and Fiber OpticApplications |
| FOA51001B1 | SSR OCMOS FET 150MA NO 6-DIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FOA-302 | 制造商:L COM 功能描述:ADPTR,METAL SC-FC SIMPLEX BRNZ |
| FOA-321 | 制造商:L-com Inc 功能描述:Fiber Optic Adapter Kit 制造商:L-com Inc 功能描述:ADPTR KIT, SC ST FC COUPLERS |
| FOA3251 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:2.5 Gbit/s Clock and Data Recovery-3R Signal Regeneration |
| FOA3251B1 | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:High Speed Clock and Data Recovery for Fiber Optic Applications |
| FOA-401 | 制造商:L-com Inc 功能描述:ADPTR,METAL ST-ST DUPLEX BRNZ |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。