Datasheet > MAX3863ETJ+T

MAX3863ETJ+T

更新时间： 2024-01-08 16:37:57

品牌	Logo	应用领域
美信 - MAXIM		接口集成电路
页数	文件大小	规格书
15页	400K
描述
Interface Circuit, BIPolar, ROHS COMPLIANT, TQFN-32

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中文翻译

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技术参数
数据手册

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MAX3863ETJ+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN, LCC32,.2SQ,20	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.81
接口集成电路类型：	INTERFACE CIRCUIT	JESD-30 代码：	S-XQCC-N32
JESD-609代码：	e3	长度：	5 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	32	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC32,.2SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	3.3 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Display Drivers	最大供电电压：	3.6 V
最小供电电压：	3.15 V	标称供电电压：	3.3 V
表面贴装：	YES	技术：	BIPOLAR
温度等级：	INDUSTRIAL	端子面层：	Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	5 mm	Base Number Matches：	1

MAX3863ETJ+T 数据手册

2.7Gbps Laser Driver with Modulation

Compensation

the output-enable must be true to enable bias and

modulation currents.

voltage to monitor diode current, use an external 4kΩ

resistor at the MDMON output. Resistors for BIASMON

and MODMON are 100Ω. The minimum voltage at the

BIASMON and MODMON must be 2.1V for compliance.

APC Loop Enable

The APC loop is enabled when an external capacitor is

placed between the APCFILT1 and APCFILT2 pins.

This capacitor sets the time constant of the APC loop.

To open the APC loop, the APCFILT1 pin is shorted to

ground. This shorts the feedback from the monitor

diode and causes the bias current to rise to the maxi-

mum value set by the BIASMAX pin.

BIAS

= V

−

×100Ω

BIASMON

MAX863

MOD

= V

MODMON

APC Filter

The APC loop keeps the average optical power from the

laser constant. An external filter capacitor is used to stabi-

lize the APC loop. The typical capacitor value is 0.01µF.

× 4kΩ

MDMON

Design Procedure

APC Failure Monitor

The MAX3863 provides an APC failure monitor

(TTL/CMOS) to indicate an APC loop tracking failure.

FAIL is set low when the APC loop cannot adjust the

bias current to maintain the desired monitor current.

When designing a laser transmitter, the optical output is

usually expressed in terms of average power and

extinction ratio. Table 1 shows relationships helpful in

converting between the optical average power and the

modulation current. These relationships are valid only if

the mark density and duty cycle of the optical wave-

form are 50%.

Short-Circuit Protection

The MAX3863 provides short-circuit protection for mod-

ulation, bias, and monitor current sources. If BIASMAX,

MODSET, or APCSET is shorted to ground, the bias

and modulation output are turned off and FAIL is active.

For a desired laser average optical power (P

) and

AVG

optical extinction ratio (r ), the required modulation cur-

rent can be calculated based on the laser slope effi-

ciency (η) using the equations in Table 1.

Current Monitors

The MAX3863 features monitor outputs for bias current

(BIASMON), modulation current (MODMON), and moni-

tor diode current (MDMON). The monitors are realized

by mirroring a fraction of the current and developing a

voltage across an external resistor. For the specified

Laser Current Compensation

Requirements

Determine static bias and modulation current require-

ments from the laser threshold current and slope efficien-

cy. To use the APC loop with modulation compensation,

CLK+

CLK-

= 0.1V TO 0.8V

DATA-

DATA+

(DATA+) - (DATA-)

= 0.2V TO 1.6V

P-P P-P

7mA TO 80mA

MOD

Figure 2. Required Input Signal, Setup/Hold-Time Definition and Output Polarity

_______________________________________________________________________________________

1...5 6 789 10 11...15

中文翻译

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与MAX3863ETJ+T相关器件

型号	品牌	获取价格	描述	数据表
MAX3863EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX3863
MAX3864	MAXIM	获取价格	2.5Gbps, +3V to +5.5V, Wide Dynamic Range Transimpedance Preamplifier
MAX3864	ADI	获取价格	2.5Gbps、+3V至+5.5V、宽动态范围互阻前置放大器
MAX38640	ADI	获取价格	微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转
MAX38640AELT+	MAXIM	获取价格	Switching Regulator,
MAX38640AENT+	MAXIM	获取价格	Switching Regulator,
MAX38640BENT+	MAXIM	获取价格	Switching Regulator,
MAX38641	ADI	获取价格	微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转
MAX38641AELT+	MAXIM	获取价格	Switching Regulator,
MAX38641AENT+	MAXIM	获取价格	Switching Regulator,

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