AK2330

[AK2330] AK2330 DAC Type 8-bit 8-channel Electronic Volume Features □ 8-bit 8 channels of built-in multiplication D/A converters □ Support for external one-path, internal three-path D/A converter reference voltages □ Built-in buffer amplifier with low distortion (-60dB typ.) and rail-to-rail operation □ Support fo r 3V control and 5V operation bec separate power supplies □ Operating voltage range: 2.6 to 5.5V □ Operating temperature range: -40 to +85°C ause of the three-wire serial system with □ Package ： 24-pin QFNJ (4.0mm x 4.0mm x 0.75mm, 0.5-mm pitch) Overview The AK2330 is an electronic volume into which 8 bit 8 channels of multiplication D/A converters are integrated on a single chip. The reference voltage of the D/A converter can be selected from one external path (VREF pin level) and internal three paths (VSS, AVDD, AVDD/2) for each channel and it can be used as a normal D/A converter or an electronic volume that attenuates signals from input pins VIN0 to VIN7. A buffer amplifier is incorporated as the subsequent stage of the D/A converter, which provides rail-to-rail output and a signal with a distortion of -60dB. In operational setting, the three-wire serial system, which synchronizes serial input (SDATA) consisting of a 4-bit address and 8-bit data with the CSN and SCLK signals, is adopted, a power supply (DVDD) is provided separately from the D/A converter, and 3V serial control and 5V D/A converter operation are enabled. In addition, settings can be made so th...