PT8A9961

Storage Temperature ..................................................... -25 to +85
Ambient Temperature with Power Applied ......................... 0 to +70
Supply Voltage to Ground Potential (Inputs & Vcc Only) ...-0.5 to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +7.0V
DC Input Voltage ...............................................................-0.5 to +7.0V
DC Output Current ........................................................................ 20mA
Power Dissipation ...................................................................... 500mW
Note:
Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

The PT8A995 and PT8A9961 provide a simple and economic solution for basic Digital Proportional R/C car toys. The chipset PT8A9961 uses CMOS LSI Analog and Mixed Signal technology. They provide high quality encoder/decoder circuit.

PT8A9961 severs as an encoder. To obtain accurate timing easily, Manchester encoding is employed. Some digital modulation scheme can be used, e.g., general ASK, OOK, FSK and QPSK. OOK is easy to implement and low cost.

The PT8A9961 provides a simple and cost effective solution for basic Digital Proportional R/C car toys with PT8A995 together. RF circuit in receiver side can demodulate RF signal. The demodulated signal will be amplified and filtered. After that, the baseband signal is formed. DPLL is adopted to generate sampling clock. An internal A/D converter is required to make servo motor work well. The inputs are SRV and OFFSET. Over-load protection mechanism is built-in to meet Toy Safety Requirement.

The PT8A9961 provide four solutions for toy car by different capability Servo.