参数资料
| 型号： | MAX3863ETJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/15页 |
| 文件大小： | 0K |
| 描述： | IC LASR DRVR 2.7GBPS 3.6V 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： | 3.15 V ~ 3.6 V |
| 电流 - 电源： | 58mA |
| 电流 - 调制： | 80mA |
| 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 |
2.7Gbps Laser Driver with Modulation
Compensation
V CC
RTEN
V CC
25 Ω
V CC
1
MODN
DATA
D
Q
0
MUX
MOD
I MOD
C D
R D
DATA
CLK
CLK
D
BIAS
V CC
V CC
5 Ω
x200
APCFILT1
APCFILT2
I BIAS
C APC
BIASMON
MODMON
MDMON
CURRENT
MONITOR
V bg
x200
I MODS
+
I MODC
V bg
∑
V bg
x5
MD
I MD
500pF
-
R MODSET
R MODCOMP
R BIASMAX
R APCSET
EN
Figure 3. Functional Diagram
programming resistor. See the I BIASMAX vs. R BIASMAX
graph in the Typical Operating Characteristics, and
select the value of R BIASMAX that corresponds to the
required current at +25°C.
Programming the Modulation Current
Two current sources combine to make up the modula-
tion current of the MAX3863 as seen in Figure 3. A con-
stant modulation current programmed at the MODSET
pin and a current, proportional to I BIAS , that varies
I BIASMAX = 200 ×
1 . 2 V
R BIASMAX
under control by the APC loop. See the Laser Current
Compensation Requirements section for the desired
values for I MODS and K. The portion of I MOD set by
Programming the Monitor Diode Current
Set Point
The APCSET pin controls the set point for the monitor
diode current. An internal current regulator establishes the
APCSET current in the same manner as the BIASMAX pin.
See the I MD vs. R APCSET graph in the Typical Operating
Characteristics, and select the value of R APCSET that cor-
responds to the required current at +25°C.
MODSET is established by an internal current regulator,
which maintains the bandgap voltage of 1.2V
across the external programming resistor. See the I
MOD vs. R MODSET graph in the Typical Operating
Characteristics and select the value of R MODSET that
corresponds to the required current at +25°C. The cur-
rent proportional to I BIAS is set by an external resistor at
the MODCOMP pin. Open circuiting the MODCOMP
pin can turn off the interaction between I BIAS and I MOD .
I MD = 5 ×
1 . 2 V
R APCSET
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3863EVKIT | 功能描述:激光驱动器 Evaluation Kit for the MAX3863 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 |
| MAX3864E/D | 功能描述:跨阻抗放大器 MAX3864E/D RoHS:否 制造商:Maxim Integrated 封装 / 箱体: 带宽: 工作电源电压: 电源电流: 工作温度范围: 封装: |
| MAX3864E/D+C8R | 制造商:Maxim Integrated Products 功能描述:2.5GBPS, +3V TO +5.5V, WIDE DYNAMIC RANG |
| MAX3864E/D-B3A | 制造商:Maxim Integrated Products 功能描述:2.5GBPS +3V TO +5.5V WIDE DYNAMIC RANGE TRANSIMPEDANCE PREAM - Gel-pak, waffle pack, wafer, diced wafer on film |
| MAX3864ESA | 功能描述:跨阻抗放大器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:SOIC-14 带宽:3 MHz 工作电源电压:36 V 电源电流:5.5 mA 工作温度范围:- 40 C to + 85 C 封装:Tube |
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