CA3228
Features
- Low Power Dissipation
- I L Control Logic
- Power-On Reset
- On-Chip Oscillator for System Time Reference
- Single Input Line for Operator mands
- Amplitude Encoded Control Signals
- Transient pensated Input mands
- Controlled Acceleration Mode
- Internal Redundant Brake and Low-Speed Disable
- Braking Disable
Description
The CA3228 is a monolithic integrated circuit designed as an automotive speed-control system. The system monitors vehicle speed and pares it to a stored reference speed. Any deviation in vehicle speed causes a servo mechanism to open or close the engine throttle as required to eliminate the speed error. The reference speed, set by the driver, is stored in a 9-bit counter. The reference speed can be altered by the ACCEL and COAST driver mands. The ACCEL mand causes the vehicle to accelerate at a controlled rate; the COAST mand disables the servo, thereby forcing the vehicle to slowdown. Application of the brake disables the servo and places the system in...
