The three-wire serial control interface allows for connection to a wide variety of host controllers, in addition to support for daisy-chaining multiple PGA2310 devices. On the digital side is a fairly large Atmel AVR (Ive chosen ATmega324 for now) controlling 4 8-bit IO registers via I2C to control the relays, LEDs, receive input from switches and a bunch of GPIO for later use. Using high performance operational amplifier stages internal to the PGA2310 yields low noise and distortion, while providing the capability to drive 600-Ω loads directly without buffering. The ability to operate from ☑5-V analog power supplies enables the PGA2310 to process input signals with large voltage swings, thereby preserving the dynamic range available in the overall signal path. The PGA2310 is a high-performance, stereo audio volume control designed for professional and high-end consumer audio systems. Pin and Software Compatible With the PGA2311.Available in DIP–16 and SOL–16 Packages.Power Supplies: 15-V Analog, 5-V Digital.Wide Gain and Attenuation Range: 31.5 dB to.Digitally-Controlled Analog Volume Control:.
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