LA70011 Sanyo Semiconductor Corporation, LA70011 Datasheet

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LA70011

Manufacturer Part Number
LA70011
Description
Recording/playback amplifier for VHS VCR
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
Ordering number : EN5710A
Overview
The LA70011 and LA70011M are recording/playback
amplifiers for VHS VCR video signals. When used in
combination with the LA71000M and LA71500M Series
of video signal processing ICs, they permit Y/C recording
without current adjustment.
Features
• Connecting the playback amplifier input directly to the
• The recording amplifiers use a fixed-current drive
• Using the same dimensions and pin assignments as the
Specifications
Maximum Ratings at Ta = 25°C
Operating Conditions at Ta = 25°C
Maximum power supply voltage
Maximum power dissipation
Operating temperature
Storage temperature
Recommended power supply voltage
Operating power supply voltage range
head reduces the number of external elements required.
configuration that yields stable recording characteristics
even under changing loads. They include built-in
automatic gain control circuits.
LA70001 and LA70001M permits the use of the same
circuit boards as these earlier chips. The LA70011 can
also be mounted at the right end of an LA70020 socket.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Parameter
Parameter
V
Pd max
Symbol
Symbol
V
CC
Topr
Tstg
V
CC
CC
max
op
Recording/Playback Amplifier for VHS VCRs
Ta
Ta
65°C [LA70011]
65°C [LA70011M] 114.3
Package Dimensions
unit: mm
3067-DIP24S
unit: mm
3112-MFP24S
Conditions
Conditions
76.1
1.6 mm: glass epoxy
LA70011, 70011M
[LA70011M]
[LA70011]
22798RM (OT) No. 5710-1/11
Monolithic Linear IC
–40 to +150
–10 to +65
Ratings
Ratings
4.8 to 5.5
SANYO: MFP24S
SANYO: DIP24S
600
500
7.0
5.0
Unit
mW
mW
Unit
°C
°C
V
V
V

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LA70011 Summary of contents

Page 1

... Using the same dimensions and pin assignments as the LA70001 and LA70001M permits the use of the same circuit boards as these earlier chips. The LA70011 can also be mounted at the right end of an LA70020 socket. Specifications Maximum Ratings 25°C ...

Page 2

... Maximum output level CH3 CH4 Crosstalk SP Crosstalk EP Output DC offset Envelope detector output pin voltage Envelope detector output pin voltage SP Envelope detector output pin voltage EP Comparator output voltage SW-Tr on resistance during playback Trick threshold level LA70011, 70011M Symbol Conditions I Current flowing into pin 13 CCP ...

Page 3

... REC MUTE threshold level REC PB threshold level Notes:* Before measuring the items under Playback Mode, input 5.0 V trigger pulse to T5 (H-SYNC), the pin from which the LA70011 takes its T3 (HA) control switch timing. * The resistance between pins 13 and 14 must be accurate to within 1.0%. ...

Page 4

... Pin Descriptions Pin Number Pin Name Standard DC Voltage (V) 1 TRICK-H H: min. 4 max. 0 COMP-OUT REC 3 HA (EP/SP) 4 SW30 5 H-SYNC LA70011, 70011M Equivalent Circuit Open Notes Trick1 3.0 V NORMAL 1.0 V Trick2 EP > SP ENV High EP 1 Hch 1.0 V Lch SYNC H 1 Continued on next page. ...

Page 5

... Continued from preceding page. Pin Number Pin Name Standard DC Voltage (V) See relevant PB documents. 6 ENVDET-OUT REC PB 7 PB-OUT REC 8 GND REC-Y-IN REC PB 10 REC-C-IN REC 11 REC/MUTE/PB LA70011, 70011M Equivalent Circuit 0 1.7 2.1 4.0 3.7 4.0 3.7 Notes REC 3.0 V REC MUTE 1 Continued on next page. No. 5710-5/11 ...

Page 6

... Pin Name Standard DC Voltage (V) PB REC-CURRENT- 12 ADJ2 REC REC-CURRENT- 14 ADJ1 REC PB 15 REC-AGC-FILT REC H-IN REC PB 17 REC SP OUT 22 EP OUT REC LA70011, 70011M Equivalent Circuit 2.5 V 2.5 V 5.0 4.5 0 1.6 2.1 4.1 2.1 4.1 Notes Continued on next page. No. 5710-6/11 ...

Page 7

... TRICK1 is a special playback mode using the following path Envelope comparator OUT (pin 2) TRICK2 provides SP searching Envelope comparator OUT HA-SW HA-SW (EP/SP mode switch): Pin 3 LA70011, 70011M Equivalent Circuit 0 2.5 GND < pin 1 level - DC < 1.0 V: TRICK2 1.0 V < pin 1 level - DC < 3.0 V: NORMAL 3.0 V < ...

Page 8

... Synchronization of HA Switching Timing during Playback with H-SYNC Signal During playback, the LA70011’s video circuits synchronize the HA-SW switching timing shown in the following figure with the H-SYNC signal from pin 5. (Other EP/SP switching takes place in real time.) Comparator Output: Pin 2 EP envelope > ...

Page 9

... Envelope Detector Characteristic: Pin 6 The LA70011 includes a built-in playback signal envelope detector circuit for use in automating tracking adjustment. Pin 6 level - detector DC level (V) REC AMP Gain Control The LA70011 eliminates recording current adjustment by adding an automatic gain control circuit to the recording amplifier also possible to change the recording current with the following methods. ...

Page 10

... Note: One possible circuit for applying this voltage is the following, which provides 9 modes between 1 and 4 V. LA70011, 70011M No. 5710-10/11 ...

Page 11

... 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 February, 1998. Specifications and information herein are subject to change without notice. LA70011, 70011M PS No. 5710-11/11 ...

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