参数资料
| 型号： | MAX3946ETG+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/29页 |
| 文件大小： | 0K |
| 描述： | IC LASER DVR SFP 11.3GBPS 24TQFN |
| 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 |
| 数据速率： | 11.3Gbps |
| 通道数： | 1 |
| 电源电压： | 2.85 V ~ 3.63 V |
| 电流 - 电源： | 68mA |
| 电流 - 调制： | 80mA |
| 电流 - 偏置： | 80mA |
| 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： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页当前第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
1Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
Pin Configuration
TOP VIEW
18
17
16
15
14
13
V EET 19
V CC 20
TIN+ 21
12
11
10
V CCT
TOUT+
TOUT+
TIN- 22
MAX3946
9
TOUT-
V CC 23
V EET 24
+
*EP
8
7
TOUT-
V CCT
1
2
3
4
5
6
THIN QFN
(4mm × 4mm)
*EXPOSED PAD CONNECTED TO GROUND.
Pin Description
PIN
1, 15
2
3
4
5
6, 7, 12, 13
8, 9
10, 11
14
16
17
NAME
V CCD
DISABLE
FAULT
BMAX
BMON
V CCT
TOUT-
TOUT+
BIAS
CSEL
SDA
FUNCTION
Power Supply. Provides supply voltage to the digital block.
Disable Input, CMOS. Set to logic-low for normal operation. Logic-high or open disables both the
modulation current and the bias current. Internally pulled up by a 7.5k I resistor to V CCD .
Fault Output, Open Drain. Logic-high indicates a fault condition. FAULT remains high even after the
fault condition has been removed. A logic-low occurs when the fault condition has been removed and
the fault latch has been cleared by toggling the DISABLE pin. FAULT should be pulled up to V CC by
a 4.7k I to 10k I resistor.
Analog Laser Bias-Current Limit. A resistive voltage-divider connected among BMON, BMAX, and
ground sets the maximum allowed laser bias current limit. The voltage at BMAX is internally com-
pared to 1.2V bandgap reference voltage.
Bias Current-Monitor Output. Current out of this pin develops a ground-referenced voltage across
external resistor(s) that is proportional to the laser bias current. The current sourced by this pin is
typically 1/100th the BIAS pin current.
Power Supply. Provides supply voltage to the output block.
Inverted Modulation Current Output. Internally pulled up by a 25 I resistor to V CCT .
Noninverted Modulation Current Output. Internally pulled up by a 25 I resistor to V CCT .
Laser Bias Current Connection. This pin requires a 0.1μF capacitor to V EET for proper operation.
Chip-Select Input, CMOS. Setting CSEL to logic-high starts a cycle. Setting CSEL to logic-low ends
the cycle and resets the control state machine. Internally pulled down by a 75k I resistor to V EET .
Serial-Data Bidirectional Input, CMOS. Open-drain output. This pin has a 75k I internal pullup, but it
requires an external 4.7k I to 10k I pullup resistor. (Data line-collision protection is implemented.)
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3946EVKIT+ | 功能描述:激光驱动器 1.0625Gbps to 11.3Gbps SFP+ Laser Driver with Laser Impedance Mismatch Tolerance 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 |
| MAX3948ETE+ | 制造商:Maxim Integrated Products 功能描述:10G QSFP+ LDD - Rail/Tube |
| MAX3948ETE+T | 制造商:Maxim Integrated Products 功能描述:10G QSFP+ LDD 制造商:Maxim Integrated Products 功能描述:10G QSFP+ LDD - Tape and Reel |
| MAX3949ETE+ | 制造商:Maxim Integrated Products 功能描述:1GBPS TO 11.3GBPS, SFP+ LASER DRIVER - Rail/Tube |
| MAX3949ETE+T | 制造商:Maxim Integrated Products 功能描述:1GBPS TO 11.3GBPS, SFP+ LASER DRIVER - Tape and Reel |
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