TC9400F

The TC9400F is a kind of 2'nd order - modulation system 1 bit DA converter incorporating an 8-times over sampling FIR type digital filter and digital attenuator developed for digital audio equipment. Because the IC is small package (SSOP24) and the de-emphasis filter which has been incorporated, it is possible to constitute reducing the size and cost of the DA converter.

There are some features about the features as follows: (1)built-in 8-times over sampling digital FIR type filter; (2)built-in digital de-emphasis filter; (3)in serial control mode, output amplitude can be set in 128 steps of resolution using microcontroller commands; (4)in parallel control mode, soft mute can be set for the output signal in 128 steps in 20 ms; (5)DA converter over sampling ratio (OSR) is 192 fs; (6)simultaneous outputs left and right channel; (7)sampling frequency (fs): 44.1 kHz, 32 kHz, 48 kHz; (8)support double speed operation; (9)built-in digital zero detection output circuit.

The following is about the maximum ratings (Ta=25): (1)supply voltage, VDD: -0.3 to 6.0 V; (2)supply voltage, VDA: -0.3 to 6.0 V; (3)supply voltage, VDX: -0.3 to 6.0 V; (4)input voltage, Vin: -0.3 to VDD+0.3 V; (5)power dissipation, PD: 200 mW; (6)operating temperature, Topr: -35 to 85; (7)storage temperature, Tstg: -55 to 150.

The last one is about the electrical characteristics (unless otherwise specified, Ta=25, VDD=VDX=VDA=5 V): (1)operating supply voltage, VDD: 4.5 V min, 5.0 V typ and 5.5 V max at Ta=-35 to 85; (2)operating supply voltage, VDX: 4.5 V min, 5.0 V typ and 5.5 V max at Ta=-35 to 85; (3)operating supply voltage, VDA: 4.5 V min, 5.0 V typ and 5.5 V max at Ta=-35 to 85; (4)power dissipation, IDD: 30 mA typ and 40 mA max at XI=16.9 MHz; (5)input voltage, "H" level, VIH: VDD*0.7 V min and VDD V max; (6)input voltage, "L" level, VIL: 0 V min and VDD*0.3 V max; (7)input current, "H" level, IIH: -10A min and 10A max; (8)input current, "L" level, IIL: -10A min and 10A max.