TDA8775

The TDA8775 consists of three 10-bit video Digital-to-Analog Converters (DACs). They convert the digital input signals into current outputs at a maximum conversion rate of 50 MHz. The device is fabricated in a 5V CMOS process that ensures high functionality with low power dissipation. The feature of TDA8775 are as follows: (1)10-bit resolution; (2)sampling rate up to 50 MHz for normal mode: RL = 37.5; (3)internal current reference; (4)current reference selector for: normal mode, RL = 37.5, low-power mode,RL = 150; (5)no deglitching circuits input; (6)SYNC and BLANK control inputs; (7)0.66V output voltage range on red and blue channels; (8)1V output voltage range on green channel; (9)+5V power supply.

The absolute maximum ratings of the TDA8775 are: (1)analog supply voltage: -0.5V to +6.5V; (2)digital supply voltage: -0.5V to +6.5V; (3)supply voltage difference between VDDA and VDDD: -1.0V to +1.0V; (4)storage temperature: -55 to 150; (5)operating ambient temperature: 0 to +70; (6)junction temperature: +125.

The following is about the electrical characteristics of TDA8775: (1)analog supply voltage: 4.5V min, 5.0V typical and 5.5V max; (2)digital supply voltage: 4.5V min, 5.0V typical and 5.5V max; (3)analog supply current: 67mA typical at SLT = 1, RL = 37.5; (4)digital supply current: 16mA typical at SLT = 1, RL = 37.5; (5)low level input voltage: VSSD-0.5V min and 0.8V max; (6)high level input voltage: 2.0V min and VDDD+0.5V max; (7)maximum clock frequency: 50MHz min at SLT = 1, RL = 37.5; (8)clock pulse width high: 6ns min; (9)clock pulse width low: 6ns min; (10)input data set-up time: 4ns; (11)input data hold time: 2.5ns.