MAX5440Maxim IntegratedStereo Volume Control with Rotary Encoder InterfaceRotary Encoder Interface Uses Gray Scale Encoding to Control Volume and Balance in Audio Applications
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MAX5440Maxim Integrated
制造商:
Maxim Integrated
制造商型号#:
MAX5440
百芯编号#:
CM544681437
价格(CNY):
百芯库存:
262
个
库存地点:
可供应量:
161
个在库
此为供应商库存，需要与销售确认
产品描述:
Stereo Volume Control with Rotary Encoder InterfaceRotary Encoder Interface Uses Gray Scale Encoding to Control Volume and Balance in Audio Applications
The MAX5440 dual, 40kΩ logarithmic taper volume control features a debounced up/down interface for use with a simple rotary encoder without using a microcontroller (µC). Each potentiometer has 32 log-spaced tap points with a buffered wiper output and replaces mechanical potentiometers. An integrated bias generator provides the required ((VDD \+ VSS) / 2) bias voltage, eliminating the need for costly external op-amp circuits in unipolar audio applications. A mode-indicator LED output specifies volume or balance control. Five integrated LED drivers indicate volume level or balance settings, depending on the status of the mode indicator.
The MAX5440 includes debounced pushbutton inputs for mute and mode. The mute input allows a single pushbutton to change between volume control and the -90dB (typ) mute setting. The mode input toggles between volume and balance control. A click-and-pop suppression feature minimizes the audible noise generated by wiper transitions. The MAX5440 provides a nominal temperature coefficient of 35ppm/°C end-to-end and 5ppm/°C, ratiometrically. The MAX5440 is available in a 24-pin SSOP package and is specified for operation over the -40°C to +85°C extended temperature range.
