Overview

The LA2230 and LA2230M are RDS demodulator ICs with an on-chip 57kHz bandpass filter and ARI-SK and DK signal identifiers. A high-performance, cost-effective RDS decoder system with group/block synchronization and error detection/correction can be built using an LC7070 series device with the LA2230 or LA2230M.

LA2230 and LA2230M feature adjustable ARI detection sensitivity for improved interference rejection and a highspeed charging circuit for rapid power-on start-up. Including the 57kHz bandpass filter on-chip results in lower-cost designs that use less PCB area.

The LA2230 and LA2230M operate from a 5V supply and are avilable in 24-pin DIPs and 24-pin MFPs, respectively.

Features

• 57kHz bandpass filter.

• Adjustable ARI detection sensitivity.

• High-speed charging circuit.

• ARI and RDS signal demodulation.

• Bit-rate clock recovery.

• RDS, DK and SK identification outputs.

• 5V supply.

• 24-pin DIP (LA2230) and 24-pin MFP (LA2230M)