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GP1U57X Series
GP1U57X Series
s Features
1. Less sensitive to fluorescent lamp driven by inverter 2. Various B.P.F ( Band Pass Filter ) frequency 3. Built-in voltage regulator circuit
IR Detecting Unit For Remote Control
s Outline Dimensions
16 1.3 14.5MAX g1 4.6 0.5 1.3 2.5 5.1 321 3 g1 6.6 0.5 2.54 2.54 Recommended drilling as viewed from the soldering face. 12MAX 3 - 0.8 16.3MAX 1 Vcc 2 Vout 3 GND 1.6 2 1 321 * Tolerance : 0.3mm g 1 Detector center
( Unit : mm )
s Applications
1. TVs 2. VCRs 3. Audio equipment 4. Air conditioners 5. CATV set top boxes 6. BS receivers 7. Multi-media equipments
s Absolute Maximum Ratings
Parameter Operating supply voltage *1 Operating temperature Storage temperature *2 Soldering temperature
*1 No dew formation *2 For 5 seconds
( Ta = 25C )
Rating 0 to 6.3 - 10 to + 70 - 20 to + 70 260 Unit V C C C
Symbol V CC T opr T stg T sol
s Recommended Operating Conditions
Parameter Supply voltage Symbol V CC Value 4.7 to 5.3 Unit V
" 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. "
3.6
GP1U57X Series s Electrical Characteristics
Parameter Dissipation current High level output voltage Low level output voltage High level pulse width Low level pulse width B.P.F. center frequency Symbol ICC VOH VOL T1 T2 fO Conditions No input light MIN. V CC - 0.5 400 400 -
( Ta= 25C, V CC= + 5V)
TYP. *4 40 MAX. 5.0 0.45 800 800 Unit mA V V
*3
-
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.
Burst Wave
600 s
600 s
The value of fO is shown in a separate table. Duty 50%
s Model Line-up
Model No. GP1U57X GP1U570X GP1U571X GP1U572X GP1U573X GP1U577X B.P.F. frequency 40 36 38 36.7 32.75 56.8 Unit
kHz
s Internal Block Diagram
Vout Amp Limiter B.P.F. Demodulator Integrator Comparator Vcc GND
. 1.
GP1U57X Series s 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 8m, Ee<10 lx and = 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 6m, Ee< 10 lx and <= 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 4m, Ee<= 300 lx and = 0 in Fig. 2, the output signal shall meet the electrical characteristics in the attached list.
20cm PD49PI 10k + 5V 10 F
Transmitter (GL521 used ) Duty 50 % Center frequency (fo ) depends on the attached model list.
10k
Vout
Oscilloscope
Fig. 1. Transmitter
In the above figure, the transmitter should be set so that the output V can be 40mVPP . out However, the PD49PI to be used here should be of the short-circuit current I SC = 2.6 A at EV = 100 lx. (E V is an illuminance by CIE standard light source A( tungsten lamp ) . )
Light detector face illuminance : Ee Vout
Reception distance : L Transmitter
( indicates horizontal and vertical directions. )
Fig. 2. Standard optical system
GP1U57X Series s 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 grounding 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 " Countermeasures 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"

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