Filter IC For Σ−∆ Modulation System DA Converter

TA2028F, TA2028P are an analog filter IC for Σ−∆ modulation system DA converter.

Using the TA2028F, TA2028P in combination the TC9237BF, TC9237BN (the Σ−∆ modulation system DA converter with a built−in digital filter), it is possible to construct a DA conversion system with less external parts.

Features

• Built−in CR for LPFs and output (differential) amplifiers for the left and right channel.

• Single power supply operation.

(+9V operation: BS tuner system)

• Noise distortion factor and S / N ratio are as follows

(when operating at +5V single power supply):

Noise distortion factor: −86dB (typ.)

S / N: 100dB (typ.)