Overview
The LA9410 final audio output IC for laser disk players has an internal input amplifier for the 1-bit DAC, 40 kHz LPF, digital/analog signal select circuit, output mute, volume circuit, mixing amplifier and limitter circuit for RF output, and voltage regulator for plus and minus power supply, It provides a compact implementation of audio output circuitry for LD and CD compatible players and laser karaoke systems.

Features
• Provides compact implementation of LD player output circuits
• Suitable for 1-bit DAC
• Internal voltage regulator allows direct use of nonregulated power supply
• Package: DIP-28S

Functions
• Input amplifier for 1-bit DAC, LPF
• Input signal select (digital/analog audio)
• Output mute
• Volume circuit (for headphone amplifier. No headphone drive output amplifier is provided)
• Mixing amplifier for RF output (with internal limitter circuit)
• Regulated power supply circuit (internal use only. Cannot be output to external circuits)