参数资料
型号: MAX3946ETG+
厂商: Maxim Integrated
文件页数: 11/29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
1Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
Pin Description (continued)
PIN
18
19, 24
20, 23
21
22
NAME
SCL
V EET
V CC
TIN+
TIN-
EP
FUNCTION
Serial-Clock Input, CMOS. This pin has a 75k I internal pulldown.
Ground
Power-Supply Connections. Provides supply voltage to the core circuitry.
Noninverted Data Input
Inverted Data Input
Exposed Pad. Ground. Must be soldered to circuit board ground for proper thermal and electrical
performance (see the Exposed-Pad Package and Thermal Considerations section).
V CCD
DISABLE
7.5k I
TOUT+
FAULT
BMAX
V C M
TX_EN
EYE SAFETY AND
OUTPUT CONTROL
LASER BIAS
CURRENT LIMITER
POWER-ON RESET
25 I
25 I
V CCT
50 I
50 I
TX_POL
TOUT-
TIN+
TIN-
EQ
1
0
PW
CONTROL
I MOD_DAC + I DE_DAC
V CC
I BIAS
I BIAS
100
BIAS
BMON
V CCD
CONTROL
LOGIC
75k I
SDA
SCL
CSEL
3-WIRE
INTERFACE
REGISTER
75k I
75k I
SET_TXEQ
MAX3946
SET_PWCTRL
V EET
V EET
9b DAC SET_IMOD
6b DAC SET_TXDE
9b DAC SET_IBIAS
Figure 2. Functional Diagram
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