HT62104 HOLTEK [Holtek Semiconductor Inc], HT62104 Datasheet - Page 9

• Manufacturer Part Number: HT62104
• Description: Infrared Remote Encoder
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

Application Circuit
Note: 1. V
Rev. 1.00
2. Before the V
3. VSS1 is GND for the DOUT driver; VSS2 is GND for the LED driver; VSS is GND for the IC logic
4. If high current drive conditions for IR_LED result in instability on VDD (noise), it is recommend to add a
5. The DOUT and KEY tracks should be kept apart by a distance of 30mil or more.
6. During PCB manufacture, the DOUT, VDD, VSS, VSS1, and VSS2 tracks should not by made using
supplies, the C1 (220 m F) positive terminal and the positive terminal of the battery must have a single-point
connection.
connected close to the IC.
circuits. The three GNDs, the negative terminal of C1 (220 m F) and the negative terminal of the battery
must have a single-point connection.
resistor R2 to stabilise VDD and VDD1 pins.
carbon tracks.
DD1
provides power for the IR_LED; V
connection for GND
connection for VDD
3V
Single-point
Single-point
DD
power supply is connected to the IC VDD pin, a capacitor C2 (0.1 m F) must first be
330mF
3V
C1
220mF
V
V
V
SS
SS1
SS2
R1
R2 10W
Figure 1 (See Note)
1W
C1
C2
K1
K2
K3
K4
K5
0.1mF
DD
C2
Figure 2
provides power for the IC logic circuits. The two power
9
1
2
3
4
5
6
7
8
C1
C2
K1
K2
K3
K4
K5
K6
K7
K8
C1
C2
K1
K2
K3
K4
K5
VSS
HT62104
DOUT
VDD1
VSS1
VDD
LED
K8
K7
K6
1
3
2
4
5
6
7
8
16
15
14
13
12
11
10
9
C1
C2
K1
K2
K3
K4
K5
VSS
HT62104
DOUT
VDD1
VSS1
VDD
1W
LED
IR333C-A(Q)
1mF
K8
K7
K6
K8
K7
K6
IR LED
LED
16
15
14
13
12
11
10
9
May 07, 2012
HT62104