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BA7745FS Datasheet(Fiches technique) 3 Page - Rohm

Numéro de pièce BA7745FS
Description  VCR Hi-Fi audio signal REC / PB amplifier with flying-erase oscillator
Télécharger  8 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
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3
Video ICs
BA7745FS
Recommended operating conditions (Ta = 25°C)
Parameter
Symbol
Min.
Typ. Max.
Unit
4.5
5.0
5.5
V
10.5
11.0
11.5
V
VCCS
Recommended
operating voltage
PB / REC system
FE system
Electrical characteristics
Recording system (unless otherwise noted, Ta = 25°C, VCC = 5V, and f = 1.7MHz)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
17pin: H
Iq (REC)
—66
90
mA
IOAR
44.7
48.2
51.7
15pin 93.0dB
µIN, 19pin OUT
∆IOAR
10
13
dB
∆AGC < 0.8dB, 19pin OUT
CMD04
– 50
– 43
dB
15pin MIXIN (), 19pin OUT (0.4MHz – 1.3MHz)
CMD09
– 55
– 40
dB
15pin MIXIN (), 19pin OUT (0.9MHz – 1.3MHz)
2HD26
– 47
– 40
dB
15pin MIXIN (), 19pin OUT (2.6MHz – 1.3MHz)
CMD30
– 42
– 35
dB
15pin MIXIN (), 19pin OUT (3.0MHz – 1.3MHz)
2HD34
– 45
– 40
dB
15pin MIXIN (), 19pin OUT (3.4MHz – 1.7MHz)
V14L
0.0
2.2
V
3.5
V
IOR.OV
+ 1.4
+ 1.9
+ 2.4
dB
V13L
0.0
2.2
V
V13H
3.5
V
IOR.MU
– 45
– 40
dB
VCC
VCC
mAP-P
V14H
f = 1.3MHz (89.0dBµ) + 1.7MHz (97.0dBµ) (MIX)
15pin 93.0dB
µIN, 14pin: “H”
15pin 93.0dB
µIN, 13pin: “H”
When 14pin DC, NORMAL REC
When 14pin DC, OVER REC
When 13pin DC, MUTE OFF
When 13pin DC, MUTE ON
No signal, pin 12 + pin 29, inflow current
〈Recording mode〉
Quiescent current
Output current AGC level
Output current AGC range
Cross modulation distortion 0.4MHz component
Cross modulation distortion 0.9MHz component
2nd-harmonic distortion 2.6MHz component
Cross modulation distortion 3.0MHz component
2nd-harmonic distortion 3.4MHz component
OVER REC holding voltage
OVER REC holding voltage
Current emphasis OVER
REC MUTE holding voltage
REC MUTE holding voltage
Mute attenuation




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