参数资料
型号: MAX3946ETG+
厂商: Maxim Integrated
文件页数: 8/29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
Typical Operating Characteristics (continued)
(V CC = +3.3V, T A = +25°C, data pattern = 2 7 - 1 PRBS + 72 zeros + 2 7 - 1 PRBS (inverted) +72 ones, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
(I MOD = 40mA P-P , I BIAS = 60mA)
TOTAL CURRENT vs. TEMPERATURE
(I MOD AT LOAD = 40mA P-P , I BIAS = 60mA)
EYE CROSSING PERCENT
vs. SET_PWCTRL
100
90
80
CURRENT INTO V CC , V CCT , AND V CCD PINS
220
210
200
190
CURRENT INTO V CC , V CCT , AND V CCD PINS
PLUS MODULATION AND BIAS CURRENT
25 ? LOAD
75
70
65
60
55
180
50
70
170
45
60
160
150
5 ? LOAD
40
35
30
50
-40 -25 -10
5
20
35
50
65
80
95
140
-40 -25 -10
5
20
35
50
65
80
95
25
TEMPERATURE (°C)
BIAS CURRENT
vs. DAC SETTING
TEMPERATURE (°C)
MODULATION CURRENT (AT LOAD)
vs. DAC SETTING
SET_PWCTRL[3:0]
MODULATION CURRENT DEEMPHASIS
vs. MANUAL DEEMPHASIS SETTING
120
100
80
60
40
20
0
90
80
70
60
50
40
30
20
10
0
R LOAD = 25 ?
DIFFERENTIAL
R LOAD = 50 ?
DIFFERENTIAL
10
9
8
7
6
5
4
3
2
1
0
SET_IMOD[8:0] = 230d
TXDE_MD[1:0] = 2d
0
200
400
600
0
200
400
600
10
20
30
40
SET_IBIAS[8:0]
BIAS MONITOR CURRENT
vs. TEMPERATURE
SET_IMOD[8:0]
EDGE SPEED
vs. MODULATION CURRENT
SET_TXDE[5:0]
EDGE SPEED
vs. DEEMPHASIS SETTING
700
600
500
I BIAS = 60mA
40
35
30
25 ? LOAD, 20% TO 80%
10Gbps, 11111 00000 PATTERN
40
35
30
SET_IMOD[8:0] = 230d
25 ? LOAD, 20% TO 80%
10Gbps, 1111 0000 PATTERN
400
300
200
100
I BIAS = 30mA
I BIAS = 10mA
25
20
15
FALL TIME
RISE TIME
25
20
15
FALL TIME
RISE TIME
0
-40 -25 -10
5
20
35
50
65
80
95
10
0
20
40
60
80
100
10
10
20
30
40
TEMPERATURE (°C)
I MOD (mA)
SET_TXDE[5:0]
8
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