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| 型号： | MAX3735AETG+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | IC LSR DRVR 2.7GBPS 3.63V 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 2.7Gbps |
| 通道数： | 1 |
| 电源电压： | 2.97 V ~ 3.63 V |
| 电流 - 电源： | 27mA |
| 电流 - 调制： | 85mA |
| 电流 - 偏置： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 1423 (CN2011-ZH PDF) |
2.7Gbps, Low-Power SFP Laser Drivers
Table 2. Circuit Responses to Various Single-Point Faults
PIN NAME
TX_FAULT
TX_DISABLE
IN+
IN-
MD
SHUTDOWN
BIAS
OUT+
OUT-
PC_MON
BC_MON
APCFILT1
APCFILT2
MODSET
APCSET
CIRCUIT RESPONSE TO OVERVOLTAGE
OR SHORT TO V CC
Does not affect laser power.
Modulation and bias currents are disabled.
The optical average power increases and a fault occurs
if V PC_MON exceeds the threshold. The APC loop
responds by decreasing the bias current.
The optical average power decreases and the APC
loop responds by increasing the bias current. A fault
state occurs if V BC_MON exceeds the threshold voltage.
Disables bias current. A fault state occurs.
Does not affect laser power. If the shutdown circuitry is
used, laser current is disabled and a fault state* occurs.
In this condition, laser forward voltage is 0V and no light
is emitted.
The APC circuit responds by increasing the bias current
until a fault is detected, then a fault state* occurs.
Does not affect laser power.
Fault state* occurs.
Fault state* occurs.
IBIAS increases until V BC_MON exceeds the threshold
voltage.
IBIAS increases until V BC_MON exceeds the threshold
voltage.
Does not affect laser power.
Does not affect laser power.
CIRCUIT RESPONSE TO UNDERVOLTAGE
OR SHORT TO GROUND
Does not affect laser power.
Normal condition for circuit operation.
The optical average power decreases and the APC
loop responds by increasing the bias current. A fault
state occurs if V BC_MON exceeds the threshold voltage.
The optical average power increases and a fault occurs
if V PC_MON exceeds the threshold. The APC loop
responds by decreasing the bias current.
The APC circuit responds by increasing bias current
until a fault is detected, then a fault state* occurs.
Does not affect laser power.
Fault state* occurs. If the shutdown circuitry is used, the
laser current is disabled.
Fault state* occurs. If the shutdown circuitry is used,
laser current is disabled.
Does not affect laser power.
Does not affect laser power.
Does not affect laser power.
IBIAS increases until V BC_MON exceeds the threshold
voltage.
IBIAS increases until V BC_MON exceeds the threshold
voltage.
Fault state* occurs.
Fault state* occurs.
* A fault state asserts the TX_FAULT pin, disables the modulation and bias currents, and asserts the SHUTDOWN pin.
Table 3. Optical Power Definitions
Pattern-Dependent Jitter
To minimize the pattern-dependent jitter associated
PARAMETER
Average Power
Extinction Ratio
Optical Power High
Optical Power Low
Optical Amplitude
Laser Slope
Efficiency
Modulation Current
SYMBOL
P AVG
r e
P 1
P 0
P P-P
η
I MOD
RELATION
P AVG = (P 0 + P 1 ) / 2
r e = P 1 / P 0
P 1 = 2P AVG x r e / (r e + 1)
P 0 = 2P AVG / (r e + 1)
P P-P = P 1 - P 0
η = P P-P / I MOD
I MOD = P P-P / η
with the APC loop time constant, and to guarantee loop
stability, connect a capacitor between APCFILT1 and
APCFILT2 (see the Applications Information section for
more information about choosing C APC values). A
capacitor attached to the photodiode anode (C MD ) is
also recommended to filter transient currents that origi-
nate from the photodiode. To maintain stability and
proper phase margin associated with the two poles
created by C APC and C MD , C APC should be 20x
greater than C MD for the MAX3735. C APC should be 4x
to 20x greater than C MD for the MAX3735A.
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3735AETG+ | 功能描述:激光驱动器 2.7Gbps Low-Power SFP Laser Driver RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3735AETG+T | 功能描述:激光驱动器 2.7Gbps Low-Power SFP Laser Driver RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3735AETG-T | 功能描述:激光驱动器 2.7Gbps Low-Power SFP Laser Driver RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3735AEVKIT | 功能描述:激光驱动器 Evaluation Kit for the MAX3735A RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| MAX3735E/D | 功能描述:激光驱动器 RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
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