TA2055F

The TA2055F is a kind of analog filter IC for - modulation system DA converter. Using the TA2055F in combination the TC9237BF, TC9270F (the - modulation system DA converter with a built-in digital filter), it is possible to construct a DA conversion system with less external parts. There are some features as follows: (1)built-in CR for LPFs and output (differential) amplifiers for the left and right channel; (2)single power supply operation; (3)noise distoration factor and S/N ratio are as follows (when operating at +5 V single supply): noise distortion factor: -63 dB (typ); S/N: 100 dB typ.

The following is about the maximum ratings of TA2055F (Ta=25): (1)supply voltage, VCC: 11 V; (2)power dissipation, PD: 350 mW; (3)operating temperature, Topr: -35 to 85; (4)storage temperature, Tstg: -55 to 150.

The last one is about the electrical characteristics about TA2055F (unless otherwise specified, VCC=5 V, Ta=25): (1)operating supply voltage, VCC: 4.5 V min, 5.0 V typ and 10 V max; (2)operating supply current, ICCQ: 7.5 mA min, 10.0 mA typ and 12.5 mA max; 8.2 mA min, 11.0 mA typ and 13.8 mA max; (3)reference voltage, VRI: 2.45 V min, 2.50 V typ and 2.55 V max; (4)noise distortion factor, THD: -93 dB typ and -90 dB max at 1 kHz, VO=950 mVrms; -93 dB typ and -90 dB max at 10 kHz, VO=950 mVrms; -78 dB typ and -75 dB max at 1 kHz, VO=95 mVrms; ; (5)cross talk, CT: -100 dB typ and -95 dB max at 1 kHz, VO=950 mVrms; (6)attenuation, ATT: 0.51 dB min, 0.71 dB typ and 1.41 dB max at 40 kHz, VO=-10 dBVrms; 1.50 dB min, 2.70 dB typ and 4.50 dB max at 80 kHz, VO=-10 dBVrms; (7)max. output level, Vomax: 1.20 Vrms min and 1.25 Vrms max at 1 kHz, THD=1%; (8)differential balance, GVB: -40 dB max at 1 kHz, 1.1 dBVrms, in-phase input; (9)LR output difference, GVD: 0 dB typ and 0.5 dB max at 1 kHz, 1.1 dBVrms, differential input.