参数资料
| 型号： | MAX3737ETJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC LSR DRVR 2.7GBPS 3.63V 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 47mA |
| 电流 - 调制： | 85mA |
| 电流 - 偏置： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
Multirate Laser Driver with Extinction
Ratio Control
Table 1. Typical Fault Conditions
1
2
3
4
If any of the I/O pins is shorted to GND or V CC (single-point failure; see Table 2), and the bias current or the photocurrent
exceed the programmed threshold.
End-of-life (EOL) condition of the laser diode. The bias current and/or the photocurrent exceed the programmed threshold.
Laser cathode is grounded and photocurrent exceeds the programming threshold.
No feedback for the APC loop (broken interconnection, defective monitor photodiode), and the bias current exceeds the
programmed threshold.
Table 2. Circuit Responses to Various Single-Point Faults
PIN
TX_FAULT
TX_DISABLE
IN+
IN-
MD
SHUTDOWN
BIAS
OUT+
OUT-
PC_MON
BC_MON
MC_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.
This disables bias current. A fault state occurs.
Does not affect laser power. If the shutdown circuitry is
used, laser current is disabled.
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.
Fault state* occurs.
I BIAS increases until V BC_MON exceeds the threshold
voltage.
I BIAS 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 effect 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,
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.
Does not affect laser power.
I BIAS increases until V BC_MON exceeds the threshold
voltage.
I BIAS 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.
Safety Circuitry Current Monitors
The MAX3737 features monitors (MC_MON, BC_MON,
PC_MON) for modulation current (I MOD ), bias current
(I BIAS ), and photocurrent (I MD ). The monitors are realized
by mirroring a fraction of the currents and developing volt-
ages across external resistors connected to ground.
Voltages greater than V REF at MC_MON, PC_MON, or
BC_MON result in a fault state. For example, connecting a
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3737EVKIT | 功能描述:激光驱动器 Evaluation Kit for the MAX3737 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 |
| MAX3738ETG | 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 |
| MAX3738ETG+ | 功能描述:激光驱动器 155-4.25Gbps SFF/SFP w/Extinction RC 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 |
| MAX3738ETG+GD0 | 功能描述:激光驱动器 155Mbps to 4.25Gbps SFF/SFP Laser Driver with Extinction Ratio Control 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 |
| MAX3738ETG+T | 功能描述:激光驱动器 155-4.25Gbps SFF/SFP w/Extinction RC 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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