TDA4670 Overview
TDA4670 The TDA4670 delays the luminance signal and improves colour-difference signal transients. Additionally, the luminance signal can be improved by peaking and noise reduction (coring). 8.8 52 1130 640 V UNIT mA ns mV V V dB dB °C ORDERING INFORMATION TYPE NUMBER TDA4670 PACKAGE NAME DIP18 DESCRIPTION plastic dual in-line package;.
TDA4670 Key Features
- Luminance signal delay from 20 to 1100 ns (minimum step 45 ns)
- Luminance signal peaking with selectable symmetrical overshoots
- 2.6 or 5 MHz peaking centre frequency and selectable degree of peaking (-3, 0, +3 and +6 dB)
- Selectable noise reduction by coring
- Handles negative and positive colour-difference signals
- Selectable Colour Transient Improvement (CTI) to decrease the colour-difference signal transient times to those of the h
- 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