GP1U770R [SHARP]

IR Detecting Unit For Remote Control; 红外检测单元，用于远程控制


型号：	GP1U770R
厂家：	SHARP ELECTRIONIC COMPONENTS
描述：	IR Detecting Unit For Remote Control 红外检测单元，用于远程控制光电远程控制输出元件
文件：	总4页 (文件大小：40K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

GP1U77R Series

IR Detecting Unit For

Remote Control

GP1U77R Sreies

(

)

■ Features

■ Outline Dimensions

Unit : mm

1. Less sensitive to fluorescent lamp driven

by inverter

1.3

2. Improved anti-electromagnetic noise char-

acteristic by mesh type light detecting

window.

(

)

3. Various B.P.F Band Pass Filter frequency

4. Built-in voltage regulator circuit

φ 0.8

❈ 1

6.6^±

0.5

2.54

16.3^MAX

Recommended drilling as viewed

from the soldering face.

Vcc

Vout

GND

■ Applications

1. TVs

2. VCRs

2 1

3. CATV set top boxes

4. BS receivers

Tolerance:± 0.3mm

❈ 1 Detector center

(

)

Ta = 25˚C

■ Absolute Maximum Ratings

Parameter

Symbol

V_CC

Rating

0 to 6.3

- 10 to + 70

- 20 to + 70

260

Unit

Operating supply voltage

Operating temperature

Storage temperature

Soldering temperature

T _opr

˚C

T _stg

˚C

T _sol

˚C

*1 No dew formation

*2 For 5 seconds

■ Recommended Operating Conditions

Parameter

Symbol

V_CC

Value

Unit

Operating supply voltage

4.7 to 5.3

“ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,

data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”

GP1U77R Series

(

)

Ta = 25˚C, V_CC= + 5V

■ Electrical Characteristics

Parameter

Symbol

I_CC

Conditions

MIN.

TYP.

MAX.

5.0

Unit

Dissipation current

No input light

High level output voltage

Low level output voltage

High level pulse width

Low level pulse width

B.P.F. center frequency

V _OH

V _OL

T ₁

V_CC- 0.5

400

0.45

800

µs

T ₂

f_O

^*440

kHz

*3 The burst wave as shown in the following figure shall be transmitted by the transmitter shown in Fig. 1.

*4 Diversified models with a different B.P.F frequency, as shown in a separate table, are also available.

600 µ s

The value of f_Ois shown in a separate table.

Duty 50%

■ Model Line-up

Model No.

GP1U77R

GP1U770R

GP1U771R

GP1U772R

GP1U773R

GP1U777R

B.P.F. frequency

Unit

kHz

36.7

32.75

56.8

■ Internal Block Diagram

Vout

Amp

Limiter

B.P.F.

Demodulator Integrator Comparator

Vcc

GND

GP1U77R Series

■ Performance

Using the transmitter shown in Fig. 1, the output signal of the light detecting unit is good enough

to meet the following items in the standard optical system in Fig. 2.

( )

1 Linear reception distance characteristics

When L= 0.2 to 6.5m, Ee < 10 lx and φ = 0˚ in Fig. 2, the output signal shall meet the electrical

characteristcs in the attached list.

( )

2 Sensitivity angle reception distance characteristics

When L = 0.2 to 4.5m, Ee < 10 lx and φ <= 30˚ in Fig. 2, the output signal shall meet the

electrical characteristics in the attached list.

( )

3 Anti outer peripheral light reception distance characteristics

When L= 0.2 to 3m, Ee <= 300 lx and φ = 0˚ in Fig. 2, the output signal shall meet the electrical

characteristics in the attached list.

20cm

10kΩ

+ 5V

(

)

Transmitter GL521 used

Duty 50 %

(

)

Center frequency fo

Vout

depends on the attached

model list.

Oscilloscope

Fig. 1. Transmitter

In the above figure, the transmitter should be set so that the output V out can be 40mV_PP.

However, the PD49PI to be used here should be of the short-circuit current I _SC= 2.6 µ A at E_V=

100 lx.

(

) )

E_Vis an illuminance by CIE standard light source A tungsten lamp

Light detector face

illuminance : Ee

Vout

Reception distance :

Transmitter

(

indicates horizontal and

)

vertical directions.

Fig. 2. Standard optical system

GP1U77R Series

■ Precautions for Use

( )

(

)

1 Use the light emitting unit remote control transmitter , in consideration of performance,

characteristics and operating condition of light emitting device and the characteristics of

the light detecting unit.

( )

2 Pay attention to a malfunction of the light detecting unit when the surface is stained with

dust and refuse. Care must be taken not to touch the light detector surface. If it should be

dirty, wipe off with soft cloth so as to prevent scratch. In case some solvents are required,

use metyl alcohol, ethyl alcohol or isoprophyl alcohol. Also, protect the light detecting unit

against flux and others.

( )

3 The shield case shall be grounded on PWB pattern.

( )

4 Do not apply unnecessary force to the terminals and case form outside.

( )

(

)

5 Do not push the light detector surface photodiode from outside.

( )

6 To avoid the electorstatic breakdown of IC, handle the unit under the condition of ground-

ing with human body, soldering iron, etc.

( )

7 In case of adopting the infrared light detecting unit for the wireless remote control, use it

in accordance with the transmission scheme and the signal format recommended in“Coun-

termeasures for malfunction prevention of home appliances with infrared remote control”

(

)

issued form Japan Association of Electrical Home Appliances AEHA in July 1987.

( )

(

)

8 As for other general cautions, refer to the chapter “Precautions for Use” Page 78 to 93 .

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