improvement processor. TDA9177 Datasheet
YUV transient improvement
Supersedes data of 1996 Jun 28
File under Integrated Circuits, IC02
1997 Dec 01
YUV transient improvement processor
• Can be used in 1fH and 2fH applications
• Luminance step improvement
• Line width control
• Smart peaking for detail enhancement
• Embedded feature reduction facility for smart noise
• Compensating chrominance delay
• YUV interface
• Two additional pins for access to 6-bit ADC and I2C-bus
• Versatile I2C-bus and pin control for user adjustments.
The TDA9177 is an I2C-bus controlled sharpness
improvement IC with additional inputs for 6-bit
analog-to-digital conversion to facilitate additional
parameter measurement (e.g. ambient light control).
It should preferably be used in front of an RGB video signal
processor with YUV interface.
In combination with the TDA9170, it builds a high
performance and intelligent picture improvement solution.
The sharpness processor provides 1D luminance step
improvement and detail enhancement by smart peaking,
suitable for both 1fH and 2fH applications. The TDA9177
can be used as a cost effective alternative to (but also in
combination with) Scan Velocity Modulation (SVM).
An on-board 6-bit Analog-to-Digital Converter (ADC) can
be used for interfacing two analog, low frequency voltage
signals to the I2C-bus.
The supply voltage is 8 V. The TDA9177 is mounted in a
24-pin SDIP envelope.
QUICK REFERENCE DATA
luminance input voltage
UV input voltage
full scale ADC input voltage
AMS = LOW
AMS = HIGH
TYP. MAX. UNIT
8.0 8.8 V
0.315 0.42 V
1.0 1.33 V
plastic shrink dual in-line package; 24 leads (400 mil)
1997 Dec 01