BA7745FS 查看數據表（PDF） - ROHM Semiconductor
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BA7745FS Datasheet PDF : 8 Pages
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Video ICs
•Recommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ. Max. Unit
Recommended
operating voltage
PB / REC system
4.5 5.0 5.5
V
VCCS
FE system
10.5 11.0 11.5 V
BA7745FS
•Electrical characteristics
Recording system (unless otherwise noted, Ta = 25°C, VCC = 5V, and f = 1.7MHz)
Parameter
〈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
∗ f = 1.3MHz (89.0dBµ) + 1.7MHz (97.0dBµ) (MIX)
Symbol Min. Typ. Max.
Iq (REC)
IOAR
∆IOAR
CMD04
CMD09
2HD26
CMD30
2HD34
V14L
V14H
IOR.OV
V13L
V13H
IOR.MU
—
44.7
10
—
—
—
—
—
0.0
3.5
+ 1.4
0.0
3.5
—
66
48.2
13
– 50
– 55
– 47
– 42
– 45
—
—
+ 1.9
—
—
– 45
90
51.7
—
– 43
– 40
– 40
– 35
– 40
2.2
VCC
+ 2.4
2.2
VCC
– 40
Unit
mA
mAP-P
dB
dB
dB
dB
dB
dB
V
V
dB
V
V
dB
Conditions
17pin: H
No signal, pin 12 + pin 29, inflow current
15pin 93.0dBµIN, 19pin OUT
∆AGC < 0.8dB, 19pin OUT
15pin MIXIN (∗), 19pin OUT (0.4MHz – 1.3MHz)
15pin MIXIN (∗), 19pin OUT (0.9MHz – 1.3MHz)
15pin MIXIN (∗), 19pin OUT (2.6MHz – 1.3MHz)
15pin MIXIN (∗), 19pin OUT (3.0MHz – 1.3MHz)
15pin MIXIN (∗), 19pin OUT (3.4MHz – 1.7MHz)
When 14pin DC, NORMAL REC
When 14pin DC, OVER REC
15pin 93.0dBµIN, 14pin: “H”
When 13pin DC, MUTE OFF
When 13pin DC, MUTE ON
15pin 93.0dBµIN, 13pin: “H”
3
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