Datasheet > AT78C1504

AT78C1504

更新时间： 2024-02-07 07:16:10

品牌	Logo	应用领域
其他 - ETC		外围集成电路控制器异步传输模式 ATM
页数	文件大小	规格书
6页	69K
描述
Controller Miscellaneous - Datasheet Reference

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

AT78C1504 技术参数

是否Rohs认证：	不符合	生命周期：	Active
包装说明：	TQFP-64	Reach Compliance Code：	compliant
风险等级：	5.12	Is Samacsys：	N
JESD-30 代码：	S-PQFP-G64	端子数量：	64
封装主体材料：	PLASTIC/EPOXY	封装代码：	TQFP
封装形状：	SQUARE	封装形式：	FLATPACK, THIN PROFILE, FINE PITCH
最大供电电压：	3.6 V	最小供电电压：	3 V
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	端子形式：	GULL WING
端子位置：	QUAD	uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT
Base Number Matches：	1

AT78C1504 数据手册

Features

• Preprogrammed for All Current DVD and CD Write Strategies

• Five 10-bit DACs for Controlling a Laser Power Amplifier

• Separate DVD and CD APC Provided

• On-board Bandgap Reference

• Timing Programmable by User

• Adaptive Pulse Shift

• Programmable End Pulses

• Serial Interface for Programming Device

• Small Die Size Enables Inclusion on OPU

DVD/CD ALPC

AT78C1504

Description

AT78C1504 is a preprogrammed automatic device for controlling the write, read and

erase pulses to a laser diode power amplifier. All of the present DVD and CD write

strategies are provided in the device. Automatic power control (APC) and optimum

power control (OPC) are also included. Though the device is preprogrammed to pro-

vide signal conditioning of the NRZI data stream, it is possible through a serial

interface to adjust pulse timing, width and amplitude. Five DACs are provided to indi-

vidually control the laser diode power amplifier. The device is particularly suited to

controlling the laser diode power amplifiers from Atmel’s RF Division. Packaging for

inclusion on the PCBA or on the optical pickup unit (OPU) is available.

Figure 1. DVD System Block Diagram

DRAM Flash

AT78C1502

Servo

Power

Drivers

Sled

Control

System

AT78C1501

ATAPI I/F

Controller

DBM

ECC

SRAM

ARM7TDMI

Spindle

Focus

Laser

AT78C1503

Read

Channel

AT78C1504

Laser Power

Controller

T08XX

Laser Amp

AT78C1507

Read

Channel Adj.

AT78C1505

Pre-amp

Rev. 2051A–DVD–07/02

12 3 4 5 6

下载PDF

与AT78C1504相关器件

型号	品牌	描述	获取价格	数据表
AT78C1505-48TC	ATMEL	Interface Circuit, CMOS, PQFP48, TQFP-48	获取价格
AT78C1507	ATMEL	DVD/CD Read Channel	获取价格
AT78C1507	MICROCHIP	Read Channel, 1 Channel, CMOS	获取价格
AT78C1507-100TC	MICROCHIP	Consumer IC,	获取价格
AT78C4050	ATMEL	DVD PRML Channel and System Controller SoC	获取价格
AT78C5009	ATMEL	Serial ATA Host Bridge	获取价格