INTEGRATED CIRCUITS
DATA SHEET
SAA4970T
Economical video processing IC
(ECOBENDIC)
Preliminary specification
File under Integrated Circuits, IC02
1996 Oct 25
Philips Semiconductors
Preliminary specification
Economical video processing IC
(ECOBENDIC)
FEATURES
•
Digital horizontal PLL
•
Digital CTI (DCTI)
•
Digital luminance peaking
•
Digital phase compensation filter
•
D/A conversion
•
Simple multi picture processing
•
Coloured frame generation
•
Memory/sync processing.
QUICK REFERENCE DATA
SYMBOL
V
DD
V
CC
T
amb
PARAMETER
digital supply voltage
analog supply voltage
operating ambient temperature
4.5
4.75
0
MIN.
5.5
5.25
70
GENERAL DESCRIPTION
SAA4970T
The ECOBENDIC is an economical video processing IC
(Economical Back End IC) for double scan conversion.
It consists of sync/memory control, video enhancing
features and D/A conversion. The IC is designed to
cooperate with an 83C654 type of microcontroller,
Texas Instruments TMS4C2970/2971 memories plus a
4 : 1 : 1 A/D converter TDA8755/8753A.
MAX.
V
V
°C
UNIT
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
SAA4970T
VSO56
DESCRIPTION
plastic very small outline package; 56 leads
VERSION
SOT190-1
1996 Oct 25
2
Philips Semiconductors
Preliminary specification
Economical video processing IC
(ECOBENDIC)
BLOCK DIAGRAM
SAA4970T
handbook, full pagewidth
SAA4970T
UVIN3
to UVIN0
47 to
50
4
REFORMATTER
UP-SAMPLING
8
D
A
3
UO
DCTI
8
D
A
5
VO
YIN7
to YIN0
HA, VA
37 to 41,
44 to 46
8
22, 23
2
PHASE COMPENSATION
FILTER
PEAKING
9
D
A
7
YO
XtalO 55
56
XtalI
19
PLL
MICROCONTROLLER
INTERFACE
8
53
51
29 to 36
24 27 28
ALE
RDN
WRN
microcontroller
command
14
CLMP
3
15 to 17
SYNC PROCESSING
MEMORY CONTROL
18
HD
VD
MGE092
CK1 CK2 microcontroller
parallel bus
AD7 to AD0
address line
IE, WE, RE
microcontroller parallel bits
Fig.1 Block diagram.
1996 Oct 25
3
Philips Semiconductors
Preliminary specification
Economical video processing IC
(ECOBENDIC)
PINNING
SYMBOL
TEST2
P
mirref
U
O
V
SSA
V
O
V
CC
Y
O
V
ref
I
ref
V
refH
R1
R2
PIP
CLMP
IE
WE
RE
V
D
H
D
RESET
BONE
H
A
V
A
ALE
IT1
IT2
WRN
RDN
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
YIN7
YIN6
YIN5
YIN4
1996 Oct 25
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
input
input
output
ground
output
supply
output
supply
supply
supply
I/O
I/O
input
output
output
output
output
I/O
output
output
input
I/O
I/O
input
output
output
input
input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
input
input
input
input
TYPE
test control
decoupling P-mirror reference
analog U output
analog ground (0 V)
analog V output
analog supply voltage (+5 V)
analog Y output
analog supply voltage reference D/A ladder HIGH
reference current
D/A decoupling capacitor
reset acquisition horizontal counter
reset display horizontal counter
PIP related input 0
clamping control
field memory input enable
field memory write enable
field memory read enable
display vertical pulse
display horizontal pulse
watchdog output (microcontroller reset)
watchdog input (microcontroller bone)
acquisition horizontal pulse
acquisition vertical pulse
address latch enable
acquisition related interrupt
display related interrupt
write not pulse
read not pulse
DESCRIPTION
SAA4970T
programmable signal positioner (psp) data bus bit 7 (MSB)
psp data bus bit 6
psp data bus bit 5
psp data bus bit 4
psp data bus bit 3
psp data bus bit 2
psp data bus bit 1
psp data bus bit 0 (LSB)
Y input bus bit 7 (MSB)
Y input bus bit 6
Y input bus bit 5
Y input bus bit 4
4
Philips Semiconductors
Preliminary specification
Economical video processing IC
(ECOBENDIC)
SYMBOL
YIN3
V
DD
V
SS
YIN2
YIN1
YIN0
UVIN3
UVIN2
UVIN1
UVIN0
CK2
V
SS
CK1
TEST1
Xtal
O
Xtal
I
PIN
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
input
supply
ground
input
input
input
input
input
input
input
I/O
ground
I/O
input
output
input
TYPE
Y input bus bit 3
digital supply voltage (+5 V)
digital ground (0 V)
Y input bus bit 2
Y input bus bit 1
Y input bus bit 0 (LSB)
UV input bus bit 3 (MSB)
UV input bus bit 2
UV input bus bit 1
UV input bus bit 0 (LSB)
display clock
digital ground (0 V)
acquisition clock
test control
external crystal output (12 MHz)
PLL crystal input (12 MHz)
DESCRIPTION
SAA4970T
1996 Oct 25
5
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