Page 1
Ordering number:EN3804B
Monolithic Linear IC
LA7217, 7217M
Synchronizing Signal Separator
with AFC and Sync Detector
Overview
The LA7217 and 7217M are synchronizing signal
separator ICs with AFC and AFC Lock detector designed
to be used in video equipments such as VCR and TV sets.
VCO with ceramic oscillator and PLL horizontal sync
detector provide an adjust-free, percision sync detection
system.
Functions
• Horizontal sync separation.
• Vertical sync separation.
• VCO (32fH).
• AFC.
• Sync signal detection.
Features
• Use of a ceramic oscillator requiers no adjustment.
• Negative polarity output.
• High impedance video signal input pin.
• 5V supply voltage.
Package Dimensions
unit:mm
3003A-DIP14
[LA7217]
14
1
1.98 2.54
unit:mm
3034A-MFP14
19.2
0.48
[LA7217M]
14
8
7
1.2
8
6.4
7.62
3.0
3.65max
3.4
0.51min
SANYO : DIP14
0.625
0.25
6.4
5.15
4.4
1
10.1
0.35
7
1.8max
1.50.1
1.241.27
SANYO : MFP14
0.15
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
73098HA (KT)/110-8534 No.3804-1/4
Page 2
LA7217, 7217M
Specifications
Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusmumixaMV
noitapissidrewopelbawollAxamdP 051Wm
erutarepmetgnitarepOrpoT 56+ot51–
erutarepmetegarotSgtsT 521+ot04–
Operating Conditons at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusdednemmoceRV
egnaregatlovgnitarepOV
Operating Characteristics at Ta = 25˚C, VCC=5V
retemaraPlobmySsnoitidnoC
niardtnerruCI
leveltupnimuminimnoitarapescnySV
emityaledtuptuoDHt
htdiwesluptuptuoDHt
emityaledtuptuoDVt
htdiwesluptuptuoDVt
ycneuqerfgninnur-eerFf
1egnaRerutpaCfHC2niphtiw9nipfonosirapmocybtnemgduJ003005zH
2egnaRerutpaCfLC2niphtiw9nipfonosirapmocybtnemgduJ00010051zH
egatlovlevelhgih,tuoCNYSV
egatlovlevelwol,tuoCNYSV
egatlovlevelhgih,tuoDHV
egatlovlevelwol,tuoDHV
egatlovlevelhgih,tuoDVV
egatlovlevelwol,tuoDVV
egatlovlevelhgih,tuoTEDV
egatlovlevelwol,tuoTEDV
egatlovlevelhgihdlohserhtrotarapmoCV
egatlovlevelwoldlohserhtrotarapmoCV
htdiwdlohserhTV
levelhgih,tnerrucgnitarepoTEDI
levelwol,tnerrucgnitarepoTEDI
Block Diagram
NC V
CC
xam 7V
CC
CC
po 5.5ot5.4V
CC
CC
nim51–11–8–Bd
NI
DH
WH
DV
WV
O
HS
LS
HH
LH
HV
LV
HD
LD
HT
LT
VHTV–
WT
HD
LD
AFC CTL VCO OUT VCO IN HD OUT DET OUT
˚C
˚C
0.5V
sgnitaR
nimpytxam
tupnirabrolocdradnatS9.471.9Am
9nipot2nipmorF1.05.09.0sµ
6.30.44.4sµ
5nipot2nipmorF93171sµ
61.012.062.0sm
ffo1WS4.5157.511.61zHk
4nipnoleveL9.32.4V
4nipnoleveL8.00.1V
9nipnoleveL9.32.4V
9nipnoleveL8.00.1V
5nipnoleveL9.32.4V
5nipnoleveL8.00.1V
8.40.5V
ffo1WS1.03.0V
a–2WS7.259.22.3V
a–2WS4.27.20.3V
LT
b–2WS045609Aµ
b–2WS045609Aµ
914 13 12 11 10
01.022.004.0V
8
tinU
AFC
COUNT
DOWN
SYNC
SEP
32fH
VCO
LOCK
DET
V.SEP
1 234567
NC VIDEO IN F.B CLAMP SYNC OUT VD OUT GND EXC
A11103
No.3804-2/4
Page 3
Test Circuit
VCC=5V
LA7217, 7217M
Murata
CSB
500F9
1µF
A
0.01µF
3.9kΩ 560Ω
820pF
ATT
Sample Application Circuit
5V
NC
NC
SW1
SG
0.01µF
AFC
COUNT
DOWN
SYNC
SEP
0.056µF
1µF
75Ω
1µF
3.9kΩ 560Ω
V
CC
150kΩ
Murata
CSB
500F9
11121314
32fH
VCO
820pF
10
V.SEP
HD DET
9
LOCK
DET
654321 7
8
SW2
10kΩ
a
b
2.5V
A11104
14 13 12 11 10 9 8
NC
SYNC
32fH
VCO
V.SEP
54
VD
LOCK
DET
6 7
0.022µF
A11105
NC
AFC
COUNT
DOWN
SYNC
SEP
1
1µF
2
0.056µF
V
3
150kΩ
CC
• DET OUT becomes high upon lock.
• When feeding video signal to the input pin directly, keep DC level between 2 and 3.5 volts.
• Standard video input is 1 Vp-p.
No.3804-3/4
Page 4
LA7217, 7217M
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any and all SANYO products described or contained herein fall under strategic
products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of
Japan, such products must not be exported without obtaining export license from the Ministry of
International Trade and Industry in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of July, 1998. Specifications and information herein are subject to
change without notice.
PS No.3804-4/4
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