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参数资料
| 型号： | MAX3946ETG+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 22/29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： | 75 |
| 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： | 托盘 |
| 安装类型： | 表面贴装 |
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1Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
Programming Pulse-Width Control
The eye crossing at the Tx output can be adjusted using
the SET_PWCTRL register. Table 5 shows these set-
tings. The sign of the number specifies the direction of
Table 5. Eye-Crossing Settings for
pulse-width distortion. The code of 1111 corresponds to
a balanced state for differential output. The pulse-width
distortion is bidirectional around the balanced state (see
the Typical Operating Characteristics section).
Applications Information
SET_PWCTRL
SET_PWCTRL[3:0]
1000
1001
1010
1011
1100
1101
1110
1111
PWD
-7
-6
-5
-4
-3
-2
-1
0
SET_PWCTRL[3:0]
0111
0110
0101
0100
0011
0010
0001
0000
PWD
8
7
6
5
4
3
2
1
Laser Safety and IEC 825
Using the MAX3946 laser driver alone does not ensure
that a transmitter design is compliant with IEC 825. The
entire transmitter circuit and component selections must
be considered. Each user must determine the level of
fault tolerance required by the application, recognizing
that Maxim products are neither designed nor authorized
for use as components in systems intended for surgical
implant into the body, for applications intended to sup-
port or sustain life, or for any other application in which
the failure of a Maxim product could create a situation
where personal injury or death could occur.
Table 6. Register Summary
REGISTER
FUNCTION/
ADDRESS
Transmitter
Control Register
Address =
H0x05
Transmitter
Status Register 1
Address =
H0x06
REGISTER
NAME
TXCTRL
TXSTAT1
NORMAL
MODE
R
R
R
R
R
R
R
R
R
R
R
R
SETUP
MODE
RW
RW
RW
RW
RW
RW
R
R
R
R
R
R
BIT
NUMBER/
TYPE
5
4
3
2
1
0
7 (sticky)
6 (sticky)
4 (sticky)
3 (sticky)
2 (sticky)
1 (sticky)
BIT NAME
TXDE_MD[1]
TXDE_MD[0]
TXEQ_EN
SOFTRES
TX_POL
TX_EN
FST[7]
FST[6]
FST[4]
FST[3]
FST[2]
FST[1]
DEFAULT
VALUE
0
0
0
0
1
1
X
X
X
X
X
X
NOTES
MSB deemphasis mode
LSB deemphasis mode
Input equalization
0: disabled, 1: enabled
Global digital reset
Tx polarity
0: inverse, 1: normal
Tx control
0: disabled, 1: enabled
TX_POR à TX_VCC low-
limit violation
BMON open/shorted to
V CC
BMAX current exceeded
or open/short to ground
V TOUT+/- common-mode
low-limit
V TOUT+/- low-limit violation
BIAS open or shorted to
ground
Copy of FAULT signal
R
R
0 (sticky)
TX_FAULT
X
in case POR bits 6 to 1
reset to 0
22
_____________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3946ETG+ | 功能描述:激光驱动器 1.0625-11.3Gbps SFP Dual-Path Limit Amp 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 |
| MAX3946ETG+T | 功能描述:激光驱动器 1.0625-11.3Gbps SFP Dual-Path Limit Amp 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 |
| 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 |
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