Datasheet > MAX3948

MAX3948

更新时间： 2022-04-25 09:42:13

品牌	Logo	应用领域
美信 - MAXIM		驱动器
页数	文件大小	规格书
37页	3974K
描述
11.3Gbps, Low-Power, DC-Coupled Laser Driver

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中文翻译

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MAX3948 数据手册

�� ꢀMaxim Integrated Productsꢀ ꢀ 4

MAX3948

11.3Gbps, Low-Power, DC-Coupled Laser Driver

ELECTRICALꢀCHARACTERISTICSꢀ(continued)

= V

= 2.95V to 3.63V, T = -40NC to +95NC; typical values are at V

= V

= 3.3V, T = +25NC, LD

= 20mA, LD

CCT

DC MOD

= 40mA, and 14I single-ended electrical output load, unless otherwise noted. See Figure 1 for electrical setup.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Modulation Output Termination

OUT

10mA P LD

P 85mA,

- 1.5V (Notes 6, 7)

MOD

Modulation Current DAC Stability

1.5

= V

VOUT

CCT

Modulation Current Rise/Fall

Time

20% to 80%, 10mA P LD

(Note 6)

P 85mA

MOD

R, F

10mA P LD

P 85mA, 8.5Gbps with

P 85mA, 10.3125Gbps

P 85mA, 11.3Gbps

P 85mA (Note 6)

MOD

K28.5 pattern

10mA P LD

(Note 9)

MOD

Deterministic Jitter (Note 6)

Random Jitter

P-P

10mA P LD

(Note 9)

10mA P LD

0.19

-10

0.55

RMS

0.1GHz P f P 4.1GHz, Z

12.5W

CM_SOURCE

SCC22

SDD22

Differential S-Parameters

(Note 4)

4.1GHz < f P 11.3GHz, Z

12.5W

CM_SOURCE

-6

0.1GHz< f P 11.3GHz, Z

50W

DIFF_SOURCE

-13

SAFETYꢀFEATURES

Fault never occurs for V

fault always occurs for V

R V

< V

- 2V,

VOUT

CCT

2.8

CCT

- 2

VOUT

CCT

2.8V, referenced to V

CCT

Fault never occurs for V

R 1.7V, fault

VOUT

always occurs for V

referenced to GND,

< 1.35V,

VOUT

1.35

1.7

Threshold Voltage at VOUT

SET_IMOD[8:6] = 111b

Fault never occurs for V

R 0.57V, fault

VOUT

always occurs for V

referenced to GND,

SET_IMOD[8:6] = 000b

< 0.43V,

VOUT

0.43

0.35

0.57

0.48

Fault never occurs for V

fault always occurs for V

R 0.48V,

TOUTC

Threshold Voltage at TOUTC

Threshold Voltage at TOUTA

< 0.35V

TOUTC

Fault never occurs for V

1.45V, fault always occurs for V

R V

TOUTA

CCT

1.88

1.45

CCT

TOUTA

- 1.88V

CCT

Fault never occurs for V

R V

- 0.15V,

- 0.4V

0.15

CCT

0.4

Threshold Voltage at V

CCT

fault always occurs for V

< V

CCT

1 2 345 6 7...37

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