OVERVIEW
The SM5865AM is a 24-bit input D/A converter for high-quality digital audio equipment. It comprises newly developed DEM (dynamic element matching) circuits, 3rd-order Σ∆ noise shaper and 23-level quantizer to control wide-band residual quantization noise in the signal band, making it ideal for application with high-frequency sampling formats. Also, the order of the required final-stage analog lowpass filter can be reduced, compared to filters for available devices, enhancing output tone quality. The output stage employs complementary outputs for high-accuracy analog signals, with appropriate lowpass filtering of the output signal.

FEATURES
■ Single-channel D/A converter built-in
■ High performance
   (120 dB signal-to-noise ratio)
   (0.001% total harmonic distortion and noise)
   (110 dB dynamic range)
■ Σ∆ D/A converter
   • 3rd-order noise shaper
   • 23-level quantizer
■ Input data format
   • 20 or 24-bit word length
   • MSB first, right-justified format
   • 8 or 4 times oversampling at fs = 32/44.1/48/
   88.2/96/192 kHz
■ System clock frequency
   • 128/192/256/384/512/768 fs
■ Single 5 V operating supply voltage
■ 24-pin SSOP package
■ Molybdenum-gate CMOS process