Ic Data Sheets - Philips L04HU Service Manual

Colour television
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Circuit Descriptions, List of Abbreviations, and IC Data Sheets

9.11 IC Data Sheets

This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
BLOCK DIAGRAM
Yin
input-
Uin
stage
Vin
U,V
DEC
DIG
Vcc
supply
ground
Sandcastle
window
generation
calibrate
2
I
C
PIN CONFIGURATION
Luminance vector processing
luminance
Y
processing
black stretch
histogram processing
gamma control
colour vector processing
saturation
correction
skin tone correction
green enhancement
blue stretch
noise
measuring
"cue flash"
featuremode
detection
2
I
C-control
Sc
1
Nc
2
ADEXT1
3
ADEXT2
4
ADEXT3
5
Yin
6
ADR
7
Uin
8
Vin
9
TP
10
SCL
11
Nc
12
Figure 9-6 Internal Block Diagram and Pin Configuration
9.11.1 Diagram H, TDA9178 (IC7610)
spectral processing
smart peaking
LTI
VDC
CDS
delay
control
colour
processing
24
Nc
23
Nc
CF
22
21
Sout
20
Vcc
19
Yout
TDA9178
18
Vee
17
Uout
16
Vout
15
DEC
DIG
14
SDA
13
Nc
L04HU AA
+
output
stage
CTI
ADext1 (low frequencies)
ADext2 (low frequencies)
ADC
ADext3 (low frequencies)
E_14480_075.eps
9.
EN 77
Sout
Yout
Uout
Vout
CF
270204

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