BA7746FS 데이터 시트보기 (PDF) - ROHM Semiconductor
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BA7746FS Datasheet PDF : 12 Pages
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Video ICs
BA7746S / BA7746FS
•Electrical characteristics
Playback mode (pin 12→ "L") (unless otherwise noted, Ta = 25°C, VCC = 5.0V, and f = 1.5MHz)
Parameter
Head switching voltage
Head switching voltage
Symbol
VHS2
VHS1
Min.
0.0
2.8
Typ.
—
—
Max.
2.2
VCC
Unit
Conditions
V
Pin 3 DC when ch2 operating
V
Pin 3 DC when ch1 operating
Output DC offset
PB holding voltage
REC holding voltage
∆VODC
– 20
0
20
mV
18, 20pin 0 IN,
3pin “H”→ “L” ∆5pin OUT
V12L
V12H
0.0
—
1.0
3.5
—
VCC
V
Pin 12 DC for PB mode
V
Pin 12 DC for REC mode
Head switch ON resistance RSWP
—
5
10
Ω
Pin 15 ON resistance
SP holding voltage
EP holding voltage
Gain emphasis EP
V4L
0.0
—
2.2
V
Pin 4 DC for SP mode
V4H
3.5
—
VCC
V
Pin 4 DC for EP mode
GVP.EP
4.0
5.0
6.0
dB
18, 20pin 20.5dBµIN, 4pin: “H”,
5pin OUT
•Measurement circuit
12µ 12µ
24 23
R
R
22
N.C.
ch1 ch2
100p 100p
10 10
560
0.01µ 0.01µ
0.1µ
21 20
19 18
560
0.1µ
17 16
PRE
ch2
PRE
ch1
P
SW
220k 0.1µ
680
12
220p
15 14 13
TC
EP
PB / REC
VCA
REC
P/R
1
2
3
0.047µ
4
5
6
1.8k
390
7
8
0.01µ
100µ
100µ
20k
5V
0.01µ
9
10
11 12
0.01µ
0.22µ
68k
0.1µ
Fig. 1
8
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