Datasheet > ISL58327

ISL58327

更新时间： 2024-11-05 01:12:55

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
15页	650K
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Wide Optical Spectrum Laser Power Monitor IC

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ISL58327 数据手册

DATASHEET

ISL58327

Wide Optical Spectrum Laser Power Monitor IC

FN6577

Rev 2.00

Jul 29, 2013

The ISL58327 photo sensor IC has a wide optical spectral

sensitivity from 400nm to 1000nm. It is good for multiple light

source applications, such as laser based projectors. The

ISL58327 has two banks of three sets of gain registers. For a

Pico-Projector application, the two banks of gain registers can

be used to monitor the bias level and peak level of each

wavelength. Bank switching is done by applying a TTL

compatible logic signal to the HL pin. The three sets of gain

registers can be used to adjust optical-to-electrical conversion

gain for each RED, GREEN, and BLUE laser or any wavelength

in a spectral range for application. The ISL58327 is a single

die device that has a photo detector of 0.7mm diameter in the

center of the die. The photo current signal is amplified through

the TIA, fine gain amplifier, and the output drivers to convert

from current to voltage. The output of ISL58327 can be

configured to be either differential or single-ended. Gain

changing according to each wavelength is done through the

I²C serial interface. Registers can be updated in real time

while the device is in operation.

Features

• High Sensitivity from 400nm to 1000nm with Patented

Technology for Improved Blue Photo Response

• Differential Voltage Output or Single-Ended Output

• Internal Output Reference or External Output Reference

• Serial Interface for Gain Calibration

• Fast Settling Time < 20ns

• Wide Signal Bandwidth > 80MHz

• Wide Signal Gain Dynamic Range > 20dB

• Low Power Consumption

• Low Output Offset < 50mV

• Small 9-Ball Optical Chip Scale Package (OCSP)

(3mmx3mm)

• I²C Serial Interface

Applications

• Optical Power Monitoring

The ISL58327 operates from a single +5V supply. It is

available in a space-saving 9-ball glass top BGA package.

• Laser Based Pico-Projectors or Projection TV

• Laser Auto Power Control for Laser Based Application

• White Balance for LED Based LCoS and DLP Pico Projectors

Related Literature

• See TB478 “PCB Assembly Guidelines for Shell-Op 3D

Package”

ITO

DRIVER

OPTIC

FEEDBACK

VIDEO

FRONT END

LCOS

OEIC

ISL58327

AND

DRIVER

VIDEO

PROCESSOR

5.0V

3.3V

2.5V

1.8V

1.2V

MCU

LASER DIODE

DRIVER

DC/DC

LASER

DIODE

FIGURE 1. APPLICATION BLOCK DIAGRAM

FN6577 Rev 2.00

Jul 29, 2013

Page 1 of 15

12 3 4 5 6 7...15

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