TDA8443A
Key Features
- Two RGB/YUV selectable clamped inputs with associated synchronization
- RGB/YUV matrix
- 3-state switching with an OFF-state
- Selectable gain
- I2C-bus or non-I2C-bus mode
- Address selection for 7 devices
- Fast switching. GENERAL DESCRIPTION The TDA8443A is a general purpose two-channel switch for YUV or RGB signals. One channel provides matrixing from RGB to YUV, which can be bypassed. The IC is controlled via I2C-bus by seven different addresses or can be used in a non-I2C-bus mode. In the non-I2C-bus mode, control of the circuit is achieved by DC voltages. QUICK REFERENCE DATA SYMBOL VP IP Z19-22 Z20-22 Z21-22 B PARAMETER supply voltage (pin 18) supply current CONDITIONS - - - - -3 dB; mode 0 or 2 +3 dB; mode 0 or 2 ±3 dB; mode 1 VO(p-p) Tamb maximum output amplitude of YUV signals (peak-to-peak value) operating ambient temperature gain × 1 gain × 2 - - - 2.1 4.2 0 MIN. 10.8 TYP. 12.0 65 TDA8443A MAX. 13.2 90 UNIT V mA Ω Ω Ω MHz MHz MHz V V °C RGB/YUV channels output impedance (pin 19) output impedance (pin 20) output impedance (pin 21) bandwidth 7 7 7 25 12 10 - - - 30 30 30 - - - - - +70
