LA7449 View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LA7449 Datasheet PDF : 10 Pages
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LA7449, 7449M
Continued from preceding page.
Parameter
[Record mode chrominance system]
APC pull-in range 1
APC pull-in range 2
BGP delay time
BGP pulse witdth
AFC pull-in range 1
AFC pull-in range 2
[Playback mode chrominance system]
Video output burst level
Pin 25 output burst level
Playback ACC characteristics 1
Playback ACC characterisitcs 2
Playback killer on input level
Playback killer on chrominance output level
Main converter carrier leakage
Burst de-emphasis level NT
Playback XO output level 1
Playback XO oscillator frequency deviation
SLD detector current 1
SLD detector current 2
NTSC playback burst output level
NTSC to PAL conversion-V axis burst level
NTSC to PAL conversion burst level ratio
Symbol
Conditions
∆fAPC1
∆fAPC2
tD
tW
∆fAFC1
∆fAFC2
Input : PAL/GBI standard color bar signal, 1Vp-p
VOP-11
VOP-25
ACC-P1
ACC-P2
VACK-P
VOACK-P
CLP
GBD
VXO-P1
∆fXO
ISLD1
ISLD2
VBNT
VB-NAP
∆B-NAP
SP mode, input : burst 30mVp-p
SP mode, input : burst 30mVp-p
With the chrominance level increased 6dB
With the chrominance level decreased 6dB
The 5.06MHz carrier leakage component
NTSC mode
∆fXO=f–4.433619 (MHz)
NTSC mode
Ratings
Unit
min typ max
350
Hz
–350 Hz
3.1
3.4
3.7 µs
4.7
4.9
5.1 µs
+1.0 +7.0
kHz
–3.7 –1.0 kHz
255
195
–0.8
–40
–5.25
300
–9
255
–1.0
–2.0
300 345 mVp-p
230 265 mVp-p
+0.5 +0.8 dB
–0.5
dB
–32 –25 dB
–44 –40 dB
–40 –33 dB
–5.0 –4.75 dB
450 600 mVp-p
0
+9 Hz
170
µA
170
µA
300 345 mVp-p
0.0 +1.0 dB
0.0 +2.0 dB
L7449M Control Pin Table
Pin No.
3
5
6
Control function
R/P Edit
R/P YNR (AVNS)-CTL
R ******
P N, C, CTL
12
R/P C-rotary
14
P QV/QH CHARA. INS
15
P Auto QH INS on
R/P N. L.-on (weak)
18
R Detail-ENHA
22
R/P EP/LP/SP
23
R SP carrier shift stop
24
P NAP
26
R/P NT/MESEC/PAL
29
P Trick
44
P DOC-off
48
R/P PB-H
L
1.0 VDC to less
YNR-off
1.5 VDC or less
N, C-off
0 to 1.9 VDC
Low CH
0.8 VDC or less
Through
Pull down by 3.9kΩ
0.6 VDC or less
N. L-off
Normal
1.2 VDC or less
SP
1.2 VDC or less
Through
1.2 VDC or less
PAL
M
H
3.8 VDC or more
1.5 to 2.5 VDC
YNR-CTL
3.5 VDC or more
YNR (strong)
3.9 VDC or more
2.0 to 3.0 VDC
N, C-CTL
1.2 to 2.2 VDC
CHARA insert
2.3 VDC or more
High CH
2.6 to 3.3 VDC
Pedestal insert
3.7 VDC or more
QV insert
1.0 to 3.0 VDC
N. L.-on
Weak and fC down
2.0 to 2.7 VDC
LP
2.0 to 2.7 VDC
Balanced-mod output
2.0 to 2.7 VDC
MESEC
3.9 VDC or more
N. L.-off
Normal
3.9 VDC or more
EP
3.0 VDC or more
SP carrier shift stop
3.3 VDC or more
NAP-on
3.9 VDC or more
NTSC
3.9 VDC or more
4.1 VDC or more
4.0 VDC or more
Note : Do not allow pin 3 to fall under 1.5V. (The chip will enter test mode.)
No.5119–4/10
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