HT62104 Datasheet | Holtek Semiconductor

Feature - Operating voltage: 2.0V ~ 5.0V - Eight data key control - Two custom codes for product differentiation - Start oscillation after key press for power saving - LED output to indicate transmission status - Direct 38k Hz output frequency infrared LED modulation - Signal gap time: T= 4 × 192 × (1/455k Hz) ≈ 4 × 16 × (1/38k Hz) - - Signal gap time: 4T - Low power consumption - 16-Pin DIP/NSOP package Applications - Fan remote controls - Audio remote controls - Toy remote controls - Consumer products remote controls General Description The HT62104 devices are high performance infrared remote control encoders which are manufactured in silicon gate CMOS technology. The HT62104 devices support eight data key inputs and an LED output to indicate the transmission status. A signal transmission is automatically activated when any key data input lines change status from high to low. The device generates a signal which is posed of a Start code, a Custom code and a Data code and sends the signal to its output pin. This can be provided to an IR (38k Hz carrier) transmission medium. Block Diagram VDD VDD1 VSS C1 C2 Encoder Output Driver VSS1 DOUT LED K1 K2 K3 K4 K5 Data Latch K6 K7 K8 Timing Generator Internal RC oscillator Rev. 1.00 May 07,...