描述 Description

The SY88922 is a high-speed current switch for driving a semiconductor laser diode in optical transmission applications. The output current, or modulation current IMOD, is DC current controlled by IRSET, current through the resistor RSET. The output OUT is HIGH when output enable is HIGH.

The device incorporates complementary open collector outputs with a capability of driving peak current of 25mA.

The resistor REXT must be placed between /OUT and VCC?to dissipate the worst case power. RSER is recommended to compensate for laser diode matching issues.

The SY88922 utilizes the high performance bipolar ASSET? technology.

特性 Features

Up to 2.5Gbps operation
25mA peak drive current
Separate modulation control
Separate output enable for laser safety
Differential inputs for data
75KΩ input pulldown resistor
Designed for use with SY88923, SY88904 or SY88905
Available in a tiny 10-pin (3mm) MSOP

簡介

SY88922V屬于集成電路（IC）的激光驅(qū)動器。由制造生產(chǎn)的SY88922V激光驅(qū)動器激光驅(qū)動器電源管理集成電路 (PMIC) 可用于提供一個或多個受控電流源，以從標(biāo)稱恒定電壓電源為半導(dǎo)體激光器件供電。產(chǎn)品通常支持通過監(jiān)控受驅(qū)動的激光器件發(fā)出的光功率而得到反饋，可廣泛應(yīng)用于光通信系統(tǒng)中；并因具有對提供給用電設(shè)備的電流進(jìn)行高頻調(diào)制的能力，而與執(zhí)行類似功能的器件區(qū)分開來。