Philips Semiconductors
Product specification
Besic without ADC
CONTENTS
1
2
3
4
5
6
6.1
6.2
7
7.1
7.1.1
7.1.2
7.1.3
7.1.4
7.1.5
7.2
7.3
7.3.1
7.3.2
7.3.3
7.3.4
FEATURES
GENERAL DESCRIPTION
QUICK REFERENCE DATA
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING INFORMATION
Pinning
Pin description
FUNCTIONAL DESCRIPTION
Digital processing at 2f
H
level
4 : 1 : 1 to 4 : 2 : 2 up-conversion
DCTI
Y-peaking
Y-delay
Sidepanels and blanking
Digital-to-analog conversion
Microprocessor
I
2
C-bus
SNERT-bus
I/O-ports
Watchdog timer
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.4.6
7.4.7
7.5
7.6
7.7
7.8
8
9
10
11
12
13
13.1
13.2
13.3
13.4
14
15
16
SAA4974H
Memory controller
WE
RSTW
RE
IE2
HDFL
VDFL
BLND
Clock and sync interfacing
4 : 1 : 1 digital input interfacing
Test mode operation
I
2
C-bus control registers
LIMITING VALUES
THERMAL CHARACTERISTICS
CHARACTERISTICS
APPLICATION
PACKAGE OUTLINE
SOLDERING
Introduction
Reflow soldering
Wave soldering
Repairing soldered joints
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
1998 Apr 21
2
Philips Semiconductors
Product specification
Besic without ADC
1
FEATURES
SAA4974H
•
Field rate up-conversion (50 to 100 Hz or 60 to 120 Hz)
•
4 : 1 : 1 digital input
•
Digital Colour Transient Improvement (DCTI)
•
Digital luminance peaking
•
Triple 10-bit Digital-to-Analog Converter (DAC)
•
Memory controller
•
Embedded microprocessor
•
16 kbyte ROM
•
256 byte RAM
•
I
2
C-bus interface
•
Synchronous No parity Eight bit Reception and
Transmission (SNERT) interface.
2
GENERAL DESCRIPTION
The SAA4974H is a video processing IC providing a digital
YUV 4 : 1 : 1 input interface, analog YUV output, video
enhancing features, memory controlling and an embedded
80C51 microprocessor core. It is applicable especially for
field rate up-conversion (50 to 100 Hz or 60 to 120 Hz) in
cooperation with a 2.9 Mbit field memory. It is designed for
applications together with:
SAA7111A, VPC3200 (video decoder)
SAA4955/56TJ, TMS4C2972/73 (serial field memories)
SAA4990H (PROZONIC)
SAA4991WP (MELZONIC).
3
QUICK REFERENCE DATA
SYMBOL
V
DDA(1,2)
V
DDD(1,2,3)
V
DDIO(1,2,3)
I
DDA(1,2)
I
DDD(1,2,3)
I
DDIO(1,2,3)
P
tot
T
amb
4
PARAMETER
analog supply voltage
digital supply voltage
I/O supply voltage
analog supply current
digital supply current
I/O supply current
total power dissipation
operating ambient temperature
MIN.
3.15
3.0
4.5
−
−
−
−
−20
TYP.
3.3
3.3
5.0
25
50
10
−
−
MAX.
3.45
3.6
5.5
40
70
20
0.5
+70
V
V
V
mA
mA
mA
W
°C
UNIT
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
DESCRIPTION
plastic quad flat package; 80 leads (lead length 1.95 mm);
body 14
×
20
×
2.8 mm
VERSION
SOT318-2
SAA4974H
QFP80
1998 Apr 21
3
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ook, full pagewidth
1998 Apr 21
8
YI7 to YI0
51 to 58
VARIABLE
Y-DELAY
4
UVI7 to UVI4
59 to 62
REFORMATTER
UP-CONVERSION
4:1:1
TO
4:2:2
5
Philips Semiconductors
Besic without ADC
BLOCK DIAGRAM
Y-PEAKING
BLANKING
DCTI
UP-CONVERSION
4:2:2
TO
4:4:4
SIDEPANELS
OVERLAY
TRIPLE
10-BIT DAC
79
YOUT
76
UOUT
74
VOUT
SAA4974H
ROM
TMS
TRST
ANATEST
30
15
49
TEST
CONTROL
BLOCK
CONTROL
INTERFACE
MEMORY CONTROL
(ACQUISITION)
47
33
22
20
32
24
70
CONTROL
INTERFACE
MEMORY CONTROL
(DISPLAY)
63
64
66
71
72
68
9
RAM
4
MICROPROCESSOR
I/O
PORT
SNERT-
BUS
13
10
I
2
C-
BUS
1
2
3 to 7 12
5
SWC
LLA
HA
VA
WE
RSTW
LLD
RE
IE2
HDFL
BLND
HRD
RST
VDFL
P1.5
to
P1.1
SNCL
SNDA
SDA
SCL
MGM687
SNRST
Product specification
SAA4974H
Fig.1 Block diagram.
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