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 TC9400F  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 of TC9400F  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) of TC9400F: (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 of TC9400F(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.