LA70100M_06 SANYO [Sanyo Semicon Device], LA70100M_06 Datasheet - Page 11

• Manufacturer Part Number: LA70100M_06
• Description: SECAM Chroma-Signal Processor IC for VCR
• Manufacturer: SANYO [Sanyo Semicon Device]

MODE control
[ Output mute control ]
[ TEST mode control ]
[ BGP position control ]
[ REC / PB mode control ]
Block diagram / application
H:SECAM
M:AUTO DET
L:EXCEPT SECAM
Forcibly applying a DC voltage to pin-1 allows REC-OUT and PB-OUT muting control.
MODE
CTL
MODE CTL
SYNC GATE GEN
pin-17 add voltage
pin-1 voltage
pin-4 add voltage
30
1
/ V-SEP
OPEN (2.5V)
OPEN
BGP
GEN
pin-11
pin-12
pin-18
pin-20
pin-28
H (5V)
L (0V)
4.43MHz
5V
0V
pin
H (5V)
L (0V)
C.SYNC IN SECAM HI
VCO
AFC
4.43MHz
to MUTE
Buffer
CW
29
2
28
to MUTE
to SYNC GATE
to PB AGC
to REC KILLER
3
Forced SECAM
AUTO ( internal detect ) SECAM : Active
Forced mute
1.1MHz BELL/A-BELL (11 to GND:3.9k)
1.1MHz BPF (pin-9 : 5V)
4.3MHz BPF (pin-9 : 5V)
4.3MHz BELL/A-BELL (20 to GND:3.9k)
BGP out (pin-9 : 5V)
Filter Adj.
+
BGP DELAY CTL
+
27
4
SECAM
H:+400n
DET
L:-400n
M:0n
BGP position
CONTROL
LOGIC
REC mode
+400ns
-400ns
26
PB mode
5
±0ns
mode
use monitor output
+
25
6
LA70100M
V CC
5V
24
7
V CC
Except SECAM : mute
output mode ( pin-12, pin-18 )
5V
23
8
*Active only in PB mode
[ 4.3M BELL offset control* ]
CHROMA
1.1MHz
22
9
4.3MHz BELL FO CTL
pin-10 add voltage
X2
FO CTL
4.3MHz BELL
OPEN (2.5V)
BELL
REC
1.1MHz BELL/A-BELL input (4V BIAS+SIG)
4.3MHz BELL/A-BELL input (4V BIAS+SIG)
BELL
FO CTL
* PB ONLY
PB
H (5V)
L (0V)
H:+80k
M: 0k
L: +40k
2.2MHz
21
10
BFP
+
ANTI BELL
ANTI BELL
4.3MHz
1.1MHz
BELL
BELL
X2
20
11
2.2MHz
TRAP
REC-C OUT
ANTI BELL
4.3MHz
1.1MHz
ANTI BELL
BFP
BFP
use monitor input
PB
REC
Buffer
19
12
4.3MHz
BFP
⎯
⎯
⎯
PB OUT
2.2MHz
MUTE
TRAP
2.2MH
Buffer
REC
MUT
REG
4.0V
PB
18
13
z
offset frequency
REC SYNC
PB
REC
PB
+40kHz
+80kHz
±0kHz
RP CTL
PB-C IN
PB-H
GATE
REC
AGC
AMP
/ PB
17
14
LIM
REC : 0V
PB : 5V
No.7204-11/16
REC
PB
REC IN
SYNC
GATE
AGC
DET
+
16
1/4
15