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LA70001 Datasheet(PDF) 6 Page - Sanyo Semicon Device

Part No. LA70001
Description  Record/Playback Amplifiers for VHS Format VCRs
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Maker  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA70001 Datasheet(HTML) 6 Page - Sanyo Semicon Device

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Usage Notes
Control Pin Logic
• HA-SW (EP/SP mode switching): pin 3
GND < the pin 3 DC level < 1.5 V: SP mode
1.5 V < the pin 3 DC level < 5 V: EP mode
• H.SYNC input: pin 5
The pin 5 DC level > 1.5 V: The horizontal synchronization period
In record mode: Used as the REC-AGC-AMP synchronization block gate pulse.
• REC/REC-MUTE/PB switching: pin 11
GND < the pin 11 DC level < 1.0 V: Playback mode
1.0 V < the pin 11 DC level < 3.0 V: Record mode with recording
muted.
3.0 V < the pin 11 DC level < 5.0 V: Record mode
Envelope detection characteristics: pin 6
The LA70001 provides a built-in playback signal envelope detection circuit so that the tracking adjustment can be made
automatic.
No. 5709-6/8
LA70001, 70001M
The pin 7 playback output level (mVp-p)
The pin 6 detected DC level (V)
Envelope Detection Voltage Characteristics
EP when an 18 k
Ω resistor is connected at pin 6.
SP when an 18 k
Ω resistor is connected at pin 6.


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