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BA7180AS Datasheet(Fiches technique) 4 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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 4 page
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4
Video ICs
BA7180AS / BA7180AFS
Parameter
Symbol
Unit
Min.
Typ. Max.
〈Recording system〉
Quiescent current
Recording AGC level
AGC control sensitivity
REC amplifier frequency characteristic
2nd harmonic distortion
72
110
mA
IOAR
27
30
33
∆IOAR
0.3
1.5
dB
Pin 9 output level difference for pin 13
input = 62.5mVP-P ~ 250mVP-P
∆IOAF – 4 – 1.5
dB
2HDR
– 45
– 38
dBc
3HDR
– 50
– 40
dBc
CMDR
– 50
– 40
dBc
4.0MHz
± 630kHz spurious, guaranteed design value.
Maximum output level
40
50
mAP-P When pin 9 output 2nd harmonic distortion is -30dB
∆I ORL – 1.5 – 0.35
—dB
Pin 9 output level difference for load L: 8.2
~ 12
µH, guaranteed design value.
MUR
– 45
– 38
dBc
Pin 9 output level difference for pin 11: M / H.
AGC mode holding voltage
AGC mode holding voltage
VTH15H
2.7
VCC
V
Pin 17 DC voltage to maintain recording AGC operation
Pin 17 DC voltage to maintain recording AGC stopped
VTH15L
0
1.2
V
mAP-P
IOMR
No signal
Pin 13 input = 125mVP-P, pin 9
output measurement
Iq (R)
3rd harmonic distortion
Cross modulation distortion
Recording current load
characteristic
Mute attenuation ratio
Conditions (BA7180AS)
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Pin 13 input = 125mVP-P 12MHz spurious,
guaranteed design value.
Pin 9 output level difference for f = 8.0 / 1.0MHz,
pin 12 input = 125mVP-P, guaranteed design value.
Pin 13 input = 125mVP-P 8MHz spurious
Note:
dBc: dB below carrier (used to express relative level from carrier reference for convenience sake)
Measurement
circuit
(Pin 11 in Fig. 2 mesurement circuit "L")
Reference values (unless otherwise noted, Ta = 25°C, VCC = 4.8V and f = 4.0MHz)
Parameter
Symbol
Unit
Typ.
Max.
ENVE output level
ENVE output level
VENV2'
1.8
2.3
2.8
V
Pin 15 output measurement when
pin 16 output = 100mVP-P.
Pin 15 output measurement when
pin 16 output = 400mVP-P.
VENV3'
3.35
3.6
3.85
V
Min.
Conditions (BA7180AS)




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