LA70100M View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LA70100M Datasheet PDF : 16 Pages
| |||
Continued from preceding page.
Parameter
SECAM detection
characteristics-1
SECAM detection
characteristics-2
R/P control threshold voltage
Clock input level
Symbol
In
V25
VSCMP1
V26
V25
VSCMP2
V26
VTRP
T17
VCLK
T2
Sync signal input threshold level
VTHS
T29
SECAM DET comparator
threshold voltage
VTCOMP T27
LA70100M
Out
Conditions
( see notes-15 )
T28
( see notes-15 )
T28
Minimum voltage of T16 under normal PB
condition
T2 = Sign Wave (4.433619MHz), SW9 = ON
T9 Minimum voltage of T9 at phase locked T2
with T8.
Minimum voltage of T29 at BGP outputs
T28
normally from T28. T9 = 5V
Minimum applied voltage of T27 at T28 = H.
T28
Ratings
Unit
min
typ
max
4.5
V
0.5
V
2.3
2.5
2.7
V
100
200
800 mVp-p
1.8
2.0
2.2 Vp-p
3.2
3.5
3.8
V
Supplemental Description
(Note 1) REC mode BELL center frequency (FBLR1, FBLR2, FBLR3) :
Input a sine wave (200mVpp, 4 to 5MHz) to T16 and measure the amplitude at T20. Assign to FBLR1 (T10=OPEN),
FBLR2 (T10=0V), FBLR3 (T10=5V) the frequency at T16 where the amplitude is maximized.
SECAM standard color bar signal (75%)
DR
DB
T16
4.40625MHz
214.5mVpp
1.5µs
T29
4.25MHz
166.7mVpp
Fig.1
(Note 3) REC EQ (1.1MHz A-BELL) center frequency (FEQR) :
Observe the waveform at T11 when T12=sine wave (200mVpp, 4 to 5MHz, BIAS=4V) is input and assign to FEQR
the frequency at T11 where the amplitude is minimized.
(Note 4) Assign to V15R the voltage of T15 at the time of VAGC measurement.
(Note 5) PB EQ (1.1MHz BELL) center frequency (FEQP) :
Input a sine wave (50mVpp, 1 to 1.2MHz) to T14 and assign to FEQP the frequency at T14 where the signal level of
T11 is maximized.
(Note 6) PB 4.3MHz A-BELL center frequency (1 FBLP1) / (2 FBLP2) / (3 FBLP3) :
Input a sine wave (200mVpp, 1 to 1.2MHz, BIAS=4V)) to T18 and assign to FBQP1 (T10=OPEN), FBQP2
(T10=0V), FBEQP3 (T10=5V) the frequency at T18 where the signal level at T20 is minimized.
No.7204-4/16
Share Link: 