BA7180AFS Просмотр технического описания (PDF) - ROHM Semiconductor
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производитель
BA7180AFS Datasheet PDF : 12 Pages
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Video ICs
•Circuit operation
Control system logic table
(1) DFF IN (pin 1)
• Playback input selection (head switching)
Control pin
Function
DFF IN
Selected playback input
H
Channel 2 (PRE IN2)
L
Channel 1 (PRE IN1)
BA7180AS / BA7180AFS
Control voltage
VCTRL1 [V]
3.5 ~ VCC
0.0 ~ 1.2
(2) H SYNC IN (BA7180AS: pin 17, BA7180AFS: pin 15)
• Controls recording AGC detector block operation.
Control pin
H SYNC
Function
AGC detector
Control voltage
VCTRL1 [V]
H
ON
2.7 ~ VCC
L
OFF
0.0 ~ 1.2
(3) PB / EE / REC CTRL (BA7180AS: pin 11, BA7180AFS: pin 10)
• Playback / recording mute / recording mode switching
Control pin
PB / EE / REC
Mode
PRE AMP
Function
AT ENVE
REC MUTE
H
PB
ON
ON
OFF
M
REC MUTE
OFF
OFF
ON
L
REC
OFF
OFF
OFF
· The PB / EE / REC CTRL pin is pulled up to VCC via a 33kΩ resistor.
REC AMP
OFF
ON
ON
Control voltage
VCTRL1 [V]
3.8 ~ VCC
2.2 ~ 2.8
0.0 ~ 1.2
•Operation notes
N.C. pins can be connected to GND.
9
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