Datasheet > CXB1828ER

CXB1828ER

更新时间： 2024-11-09 03:27:39

品牌	Logo	应用领域
三星 - SAMSUNG		驱动器二极管激光二极管
页数	文件大小	规格书
20页	254K
描述
2.5Gbps Laser Diode Driver

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CXB1828ER 数据手册

CXB1828ER

2.5Gbps Laser Diode Driver

Description

32 pin VQFN (Plastic)

The CXB1828ER is a high-speed monolithic laser

diode driver. This IC can drive the data rate of 2.5Gbps

and the modulation current of up to 50mA. The bias

current of up to 50mA can be supplied and it is

controlled by the built-in APC (automatic power

control). The modulation current and bias current are

designed to be linearly controlled by the voltage input

to the control pin.

This IC has a built-in DFF, and through mode or DFF

mode can be selected. In through mode the signal

goes as it is, and in DFF mode the input signal is

retimed by the external clock. The data input pin and

the clock input pin can accept the differential input of

PECL and CML, and the 50Ω termination resistors are

provided in the IC.

The shutdown function which shuts down the

modulation current and bias current, the activity error

detect circuit which detects that the signal has no

input, and the alarm output power-on reset circuit.

Furthermore, the duty cycle control circuit which

corrects the modulation output signal duty is

included in this IC.

Absolute Maximum Ratings

• Supply voltage Vcc – VEE

• Data and clock input voltage difference

2.5

–0.3 to +6.0

|VD – VDN|

• Bias output current

100

• Modulation output current

• Storage temperature

Tstg

–65 to +150 °C

Recommended Operating Conditions

• Supply voltage Vcc – V^EE3.14 to 3.46

• Operating ambient temperature

–40 to +85 °C

The CXB1828ER employs the 4.8mm × 4.8mm

of 32-pin plastic package, contributing to the

miniaturization of the optical mode.

Important Notes

The IC requires SLOW turning power on and off.

See Vcc rise and fall time in AC characteristics.

Features

• Direct laser diode drive

• Maximum data rate of 2.5Gbps

• Power-on reset function

• Automatic power control (APC) for bias current

• Alarm function and shutdown function

• Differential PECL and CML inputs or AC coupled

input

Electrostatic Strength

This IC has a very sensitive electrostatic strength,

so care should be taken for handling.

• Internal duty cycle correction circuit

• Activity error detector function for laser safety

• Typical rise time is 80ps.

Typical Transmit Block Diagram

Transmit Path

• Built-in 50Ω input termination resistor

• Compact package size: 4.8mm × 4.8mm

• Single +3.3V supply voltage

Sony

CXB1828ER

Sony

SerDes

Laser Diode

Applications

• Gigabit ethernet: 1.25Gbps

• SONET/SDH: 622Mbps, 2.5Gbps

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by

any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

– 1 –

E01Y22A2Z-PS

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