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BA7180AS Datasheet(Fiches technique) 9 Page - Rohm

Numéro de pièce BA7180AS
Description  2-channel PRE / REC amplifier with auto-tracking interface
Télécharger  12 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
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BA7180AS Datasheet(HTML) 9 Page - Rohm

 
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Video ICs
BA7180AS / BA7180AFS
Circuit operation
Control system logic table
(1) DFF IN (pin 1)
• Playback input selection (head switching)
Control pin
Control voltage
VCTRL1 [V]
H
3.5 ~ VCC
L
0.0 ~ 1.2
DFF IN
Function
Selected playback input
Channel 1 (PRE IN1)
Channel 2 (PRE IN2)
(2) H SYNC IN (BA7180AS: pin 17, BA7180AFS: pin 15)
• Controls recording AGC detector block operation.
Control pin
HON
L
OFF
2.7 ~ VCC
0.0 ~ 1.2
Function
AGC detector
H SYNC
Control voltage
VCTRL1 [V]
(3) PB / EE / REC CTRL (BA7180AS: pin 11, BA7180AFS: pin 10)
• Playback / recording mute / recording mode switching
Control pin
Mode
H
PB
ON
ON
OFF
OFF
M
OFF
OFF
ON
ON
L
REC
OFF
OFF
OFF
ON
PB / EE / REC
3.8 ~ VCC
2.2 ~ 2.8
0.0 ~ 1.2
Function
PRE AMP
AT ENVE
REC MUTE
REC AMP
REC MUTE
· The PB / EE / REC CTRL pin is pulled up to VCC via a 33k
Ω resistor.
Control voltage
VCTRL1 [V]
Operation notes
N.C. pins can be connected to GND.


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