ha12162fp HITACHI, ha12162fp Datasheet - Page 60

• Manufacturer Part Number: ha12162fp
• Description: Dolby C-type Noise Reduction System
• Manufacturer: HITACHI

HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Rev.3, Jun. 1999, page 60 of 63
AUX IN
AUX IN
We show such application in figure 3. In this application there is 3dB difference between mode AUX1
and mode AUX2 of controlled terminal’s pin 24.
Another application is show in figure 4. It is put in filter circuit between pin 6 or 23 and pin 7 or 22.
For example AUX1 mode is AM tuner input and AUX2 mode is FM tuner input respectivily.
(R)
(L)
C
0.47
1
0.47
C
PB IN
R
5.1 k
5.1 k
R
PB IN
(L)
12
11
Internal of IC
+
(R)
+
1
28
1
10 k
R
2
100
C
27
2
3
R
0.47
10 k
C
+
10
11
0.47
+
C
+
2
26
3
Figure 3 Application of HA12161FP/162FP
V
1
6
C
CC
18 k
R
4
Figure 4 Application of AUX Mode
AUX 2
9
+
25
16
1
Filter
4
to V
22
C
3 dB Attenuator
C
C/B/OFF
13
CC
+
AUX 1
15
B
24
2
5
Note: C , C
7
22 k
22 k
R
R
8
3
HA12134A/5A/6A (Dolby B NR)
PB
OFF
23
14
3
6
5
10
13
22
4
= 0.22 F with HA12134A Series
7
+
—
+
—
12
21
5
8
2200 p
2200 p
C
C
20
18
20
11
6
9
R
22 k
16
R
22 k
18
AUX2
AUX1
10
10
19
7
2.2
2200 p
2.2
C
C
2200 p
C
C
+
+
6
9
19
21
11
18
8
9
R
R
10 k
R
R
560
560
10 k
4
19
17
7
PB OUT
PB OUT
12
17
(R)
(L)
2200 p
2200 p
C
C
14
17
(Dolby B-C NR)
13
16
HA12161FP
0.1
C
0.1
C
5
10
14
15
0.1
C
0.1
C
16
15