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HT62104 Datasheet(PDF) 9 Page - Holtek Semiconductor Inc

Part # HT62104
Description  Infrared Remote Encoder
PDF  14 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT62104 Datasheet(HTML) 9 Page - Holtek Semiconductor Inc

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Rev. 1.00
9
May 07, 2012
HT62104
Application Circuit
VDD
DOUT
LED
VDD1
VSS1
K8
K7
K6
VSS
K5
K4
K3
K2
K1
C1
C2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
K1
K2
K3
K4
K5
C1
C2
K8
K7
K6
1W
HT62104
R1
VSS
VSS1
VSS2
Single-point
connection for GND
Single-point
connection for VDD
R2 10W
220mF
C1
VDD
0.1mF
C2
3V
Figure 1 (See Note)
VDD
DOUT
LED
VDD1
VSS1
K8
K7
K6
VSS
K5
K4
K3
K2
K1
C1
C2
K1
K2
K3
K4
K5
K6
K7
K8
3V
330mF
LED
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C1
C2
1mF
1W
IR LED
HT62104
IR333C-A(Q)
Figure 2
Note:1.VDD1providespowerfortheIR_LED;VDDprovidespowerfortheIClogiccircuits.Thetwopower
supplies,theC1(220mF)positiveterminalandthepositiveterminalofthebatterymusthaveasingle-point
connection.
2.BeforetheVDDpowersupplyisconnectedtotheICVDDpin,acapacitorC2(0.1mF)mustfirstbe
connectedclosetotheIC.
3.VSS1isGNDfortheDOUTdriver;VSS2isGNDfortheLEDdriver;VSSisGNDfortheIClogic
circuits.ThethreeGNDs,thenegativeterminalofC1(220mF)andthenegativeterminalofthebattery
musthaveasingle-pointconnection.
4.IfhighcurrentdriveconditionsforIR_LEDresultininstabilityonVDD(noise),itisrecommendtoadda
resistorR2tostabiliseVDDandVDD1pins.
5.TheDOUTandKEYtracksshouldbekeptapartbyadistanceof30milormore.
6.DuringPCBmanufacture,theDOUT,VDD,VSS,VSS1,andVSS2tracksshouldnotbymadeusing
carbontracks.



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