AN7374K Datasheet, PDF (1/8 Pages) Panasonic Semiconductor – Dolby B/C Type Noise Reduction IC

ICs for Cassette, Cassette Deck
AN7374K, AN7376S
Dolby* B/C Type Noise Reduction IC
s Overview
The AN7374K, AN7376S are 2-ch dolby B/C type noise
reduction ICs. Filter circuits (MPX filter driver and spectral
skewing, etc.) are incorporated in 28-pin package. It can
configure with very few external parts.
s Features
• Fewer external parts
• Spectral skewing circuit and anti-saturation circuit built-
in.
• Available for double deck (Through signal output to
REC output at PB mode.)
• Available for ±2 or 1 power supply
* Dolby is the trademark of Dolby Laboratories Licensing
Cor-poration.
AN7374K
Unit : mm
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
8.4±0.3
4.8±0.25
1.05±0.25
3.05±0.25
3 ~15˚ 10.16±0.25
0.3
+
–
0.1
0.05
28-Lead Shrunk DIP Package (SDIP028-P-0400A)
AN7376S
Unit : mm
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
s Block Diagram
0.3
7.2±0.3
9.4±0.3
28-Lead SOP Package (SOP028-P-0375A)
VCC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Mpx–Dr
Bias
Switch
Logic
Mpx–Dr
1
2
3
4
5
GND
VREF
Buff.
Line
Stab
VCR–H
Rect–H
OS–H
SS
+
Rect–L
VCR–L
OS–L
AS
+
Buff.
VREF
SS
+
OS–H
IREF
VCR–H
Line
Rect–H
AS
+
OS–L
VCR–L
Rect–L
6
7
8
9
10
11
12
13
14