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參數(shù)資料
| 型號： | MAX3766EEP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 其它接口 |
| 英文描述： | 622Mbps LAN/WAN Laser Driver with Automatic Power Control and Safety Shutdown |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PDSO20 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-20 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 250K |
| 代理商： | MAX3766EEP |
M
The available laser bias current is programmed by
connecting external resistor R
BIASMAX
from REF1 to
BIASMAX. The BIASMAX programming current is
adjusted by the APC circuit and amplified by the laser
bias circuit.
An internal 520
resistor between BIASMAX and the
mirror input at internal node APC limits the maximum
laser bias current when BIASMAX is connected directly
to REF1. BIASMAX can be directly connected to REF1
in space-constrained designs, causing the maximum
programming current (about 2.5mA) to flow into
BIASMAX. Selecting a BIASMAX resistor saves power
and limits the transmitter’s maximum light output.
R
BIASMAX
can be estimated as follows:
This equation applies to maximum bias currents above
10mA.
R
=
1.55V 40
I
520
BIASMAX
BIASMAX
( )
622Mbps LAN/WAN Laser Driver with
Automatic Power Control and S afety S hutdown
8
_______________________________________________________________________________________
SAFETY
START-UP
CIRCUIT
FAILURE
DETECTION
REFERENCE
GENERATOR
2k
V
V
TEMP
BANDGAP
POWERSET
MIRROR
1X
AUTOMATIC
POWER CONTROL
V
CC
- 2V
MONITOR-
DIODE
AMPLIFIER
LASER BIAS CIRCUIT
BIAS
MIRROR
40X
APC
I
L
I
B
I
APC
TEMP
MODULATION
MIRROR
30X
PECL
INPUT
BUFFER
ENABLE
SHDN
SAFETY
V
CC
V
CC
FAIL
MOD
REF2
TC
REF1
BIASMAX
C
MD
V
CC
V
CC
V
CC
MONITOR
PHOTODIODE
LASER
MD
BIAS
OUT+
OUT-
POWERSET
R
POWERSET
R
BIASMAX
R
TC
R
MOD
5.1k
520
520
300
FAILURE
SHDN
GNDOUT
VCCOUT
V
CC
IN+
IN-
MODULATION-
CURRENT
DRIVER
MAX3766
Figure 2. Functional Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3766EEP+ | 功能描述:激光驅(qū)動器 622Mbps LAN/WAN RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
| MAX3766EEP+T | 功能描述:激光驅(qū)動器 622Mbps LAN/WAN RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
| MAX3766EEP-T | 功能描述:激光驅(qū)動器 622Mbps LAN/WAN RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
| MAX3766EVKIT | 功能描述:激光驅(qū)動器 Evaluation Kit for the MAX3766 RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
| MAX3768C/D | 功能描述:限幅放大器 RoHS:否 制造商:Micrel 輸入電壓范圍（最大值）:3.6 V 工作電源電壓:3.3 V 電源電流:40 mA 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:MSOP-10 封裝:Tube |
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