
1996 Oct 14
12
Philips Semiconductors
Product specification
Y/C automatic adjustment processor
(VHS standard)
TDA9725
Colour killer terminal (pin 16)
V
NC
DC voltage black and white
luminance input without
chrominance
forced colour off
forced colour on
colour on
relative to nominal input;
V
30
= 110 mV (p-p)
relative to nominal input;
V
30
= 110 mV (p-p)
1.6
1.8
2.0
V
V
16
input voltage
0
3.0
2.0
25
2.2
30
1.5
4.3
2.4
35
V
V
V
dB
V
th
CK
th
threshold voltage
colour killer threshold
CK
hys
colour killer hysteresis
1
3
5
dB
Frequency correction output (pin 17)
V
17
I
oSLD
t
SLD
f
SLH
operating range
SLD output current
SLD pulse duration
start of detection at positive
frequency deviation
(referenced to f
sc
+ N
×
f
H
at
pin 35;
I
17
)
start of detection at
negative frequency
deviation (referenced to
f
sc
+ N
×
f
H
at pin 35; +I
17
)
output current of frequency
detector
frequency detector pulse
duration
start of detection at positive
frequency deviation
(referenced to f
sc
+ N
×
f
H
at
pin 35;
I
17
)
start of detection at
negative frequency
deviation (referenced to
f
sc
+ N
×
f
H
at pin 35; +I
17
)
0.8
±
12
1.0
2.0
±
17
1
2.0
4.0
4.2
±
22
3.0
5.0
V
μ
A
t
H
kHz
kHz
SLD
SLD
SLD/PAL
SLD/NTSC
f
SLL
SLD/PAL
SLD/NTSC
3.0
5.0
2.0
4.0
1.0
2.0
kHz
kHz
I
ofDET
FDET
±
12
±
17
±
22
μ
A
t
fDET
FDET
68
73
78
μ
s
f
fDETH
record mode
40
70
100
kHz
f
fDETL
record mode
100
70
40
kHz
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT