Datasheet > LMH6525SPNOPB

LMH6525SPNOPB

更新时间： 2024-11-24 11:37:15

品牌	Logo	应用领域
美国国家半导体 - NSC		驱动器二极管激光二极管
页数	文件大小	规格书
15页	902K
描述
Four-hannel Laser Diode Driver with Dual Output

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LMH6525SPNOPB 数据手册

June 2005

LMH6525/LMH6526

Four–Channel Laser Diode Driver with Dual Output

General Description

Features

n Fast switching: Rise and fall times: 0.6/1.0 ns.

™

The LMH 6525/6526 is a laser diode driver for use in

combination DVD/CD recordable and rewritable systems.

The part contains two high-current outputs for reading and

writing the DVD (650 nm) and CD (780 nm) lasers. Func-

tionality includes read, write and erase through four separate

switched current channels. The channel currents are

summed together at the selected output to generate multi-

level waveforms for reading, writing and erasing of optical

discs. The LVDS interface delivers DVD write speeds of 16x

and higher while minimizing noise and crosstalk. The

LMH6525/6526 is optimized for both speed and power con-

sumption to meet the demands of next generation systems.

The part features a 150 mA read channel plus one 300 mA

and two 150 mA write channels, which can be summed to

allow a total output current of 600 mA or greater. The chan-

nel currents are set through four independent current inputs.

n Low Voltage Differential Signaling (LVDS) channels

enable interface for the fast switching lines

n Low output current noise: 0.24 nA/

n Dual Output: Selectable by SELA/B pin (active HIGH)

SELA = LMH6526

SELB = LMH6525

n Four independent current channels

Gain of 300, 300 mA write channel

Gain of 150, 150 mA low-noise read channel

Two gain of 150, 150 mA write channels

600 mA minimum combined output current

n Integrated AC Coupled HFM Oscillator

Selectable frequency and amplitude setting

by external resistors

200 MHz to 600 MHz frequency range

Amplitude to 100 mA peak-to-peak modulation

n Complete shutdown by ENABLE pin

n 5V single-supply operation

n Logic inputs TTL and CMOS compatible

n Space saving Leadless Leadframe Package (LLP^®-28)

n LMH6525 has differential enable oscillator inputs

n LMH6526 has single ended enable oscillator inputs

An on-board High-Frequency Modulator (HFM) oscillator

helps reduce low-frequency noise of the laser and is enabled

by applying LVDS levels on the ENOSC pins for the

LMH6525, while the LMH6526 is enabled by applying an

asymmetrical signal on the ENOSC pin. The fully differential

oscillator circuit minimizes supply line noise, easing FCC

approval of the overall system. The SELA/B pin (active

HIGH) selects the output channel and oscillator settings.

External resistors determine oscillator frequency and ampli-

tude for each setting. The write and erase channels can be

switched on and off through dedicated LVDS interface pins.

Applications

n Combination DVD/CD recordable and rewritable drives

n DVD camcorders

n DVD recorders

Block Diagrams

20110108

20110109

LLP^®is a registered trademark of National Semiconductor.

™

LMH is a trademark of National Semiconductor Corporation.

DS201101

www.national.com

12 3 4 5 6 7...15

中文翻译

下载PDF

与LMH6525SPNOPB相关器件

型号	品牌	获取价格	描述	数据表
LMH6525SPXNOPB	NSC	获取价格	Four-hannel Laser Diode Driver with Dual Output
LMH6526	NSC	获取价格	Four-hannel Laser Diode Driver with Dual Output
LMH6526	TI	获取价格	具有双输出的四通道激光二极管驱动器
LMH6526SP	TI	获取价格	IC,LASER DIODE/LED DRIVER,CMOS,LLCC,28PIN,PLASTIC
LMH6526SP/NOPB	NSC	获取价格	IC LED DISPLAY DRIVER, PQCC28, LLP-28, Display Driver
LMH6526SP/NOPB	TI	获取价格	具有双输出的四通道激光二极管驱动器 \| NJD \| 28 \| -40 to 85
LMH6526SPNOPB	NSC	获取价格	Four-hannel Laser Diode Driver with Dual Output
LMH6526SPX	TI	获取价格	IC,LASER DIODE/LED DRIVER,CMOS,LLCC,28PIN,PLASTIC
LMH6526SPX/NOPB	TI	获取价格	Four-Channel Laser Diode Driver with Dual Output 28-UQFN -40 to 85
LMH6526SPXNOPB	NSC	获取价格	Four-hannel Laser Diode Driver with Dual Output

与LMH6525SPNOPB相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

38
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

30
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

58
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

54

产品中心

服务支持

精选活动

关于我们

帮助中心

LMH6525SPNOPB

LMH6525SPNOPB 数据手册

与LMH6525SPNOPB相关器件

与LMH6525SPNOPB相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LMH6525SPNOPB

LMH6525SPNOPB 数据手册

与LMH6525SPNOPB相关器件

与LMH6525SPNOPB相关文章

您还可以找

您在本页遇到什么问题？