NXP Semiconductors TDA4672
The TDA4672 delays the luminance signal. The luminance signal can also be improved by peaking and noise reduction (coring). 5 TDA4672 14 CCLP2 13 CCLP1 12 VoY 11 CCOR 10 SCL Vo(B − Y) 6 Vi(B − Y) 7 GND2 SDA 8 9 MED757 1996 Dec 11 4 Philips Semiconductors Product specification Picture Signal Improvement (PSI) circuit with enhanced peaking function FUNCTIONAL DESCRIPTION The TDA4672 contains luminance signal processing.| Part No. | TDA4672 |
|---|---|
| Datasheet | TDA4672 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Picture Signal Improvement PSI |
| Buy | Stock & Price |
FEATURES
● Luminance signal delay from 20 ns to 1100 ns (minimum step 45 ns)● Selectable luminance signal peaking with symmetrical overshoots
● Selectable 2.6 or 5 MHz peaking centre frequency and degree of peaking from −6 dB to +9 dB in 16 steps of 1 dB each
● Selectable noise reduction by coring
● Selectable 5 or 12 V sandcastle input voltage
● All controls selected via the I2C-bus
● Timing pulse generation for clamping and delay time control synchronized by sandcastle pulse
● Automatic luminance signal delay correction using a control loop
● Luminance input signal clamping with coupling capacitor
● 4.5 to +8.8 V supply voltage
● Minimum of external components. QUICK REFERENCE DATA SYMBOL VP IP(tot) td(Y) Vi(Y)(p-p) GY Tamb supply voltage (pin 1) total supply current Y signal delay time composite Y input signal (peak-to-peak value, pin 16) voltage gain of Y channel operating ambient temperature PARAMETER MIN. 4.5 26 20 − − 0 5 37 − 450 −1 − TYP.
GENERAL DESCRIPTION
TDA4672 The TDA4672 delays the luminance signal.
