TDA9177 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA9177 Datasheet PDF : 28 Pages
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Philips Semiconductors
YUV transient improvement processor
Product specification
TDA9177
FEATURES
• 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
control
• 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.
GENERAL DESCRIPTION
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
SYMBOL
VCC
Vi(Y)
PARAMETER
supply voltage
luminance input voltage
Vi(UV)
VFS(ADC)
Vref
UV input voltage
full scale ADC input voltage
reference voltage
CONDITIONS
AMS = LOW
AMS = HIGH
MIN.
7.2
−
−
−
−
3.90
TYP. MAX. UNIT
8.0 8.8 V
0.315 0.42 V
1.0 1.33 V
−
1.9 V
0.5Vref −
V
4.05 4.20 V
ORDERING INFORMATION
TYPE
NUMBER
TDA9177
NAME
SDIP24
PACKAGE
DESCRIPTION
plastic shrink dual in-line package; 24 leads (400 mil)
VERSION
SOT234-1
1997 Dec 01
2
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