參數(shù)資料
型號(hào): BH7800K
廠商: Rohm CO.,LTD.
英文描述: Single chip Hi-Fi audio signal processor
中文描述: 單芯片Hi - Fi音頻信號(hào)處理器
文件頁(yè)數(shù): 12/13頁(yè)
文件大?。?/td> 174K
代理商: BH7800K
12
Video ICs
BH7800K
Application example
33
32
31
30
29
28
27
26
25
24
23
1
INPUT
SWITCH
MIX
AMP
PNR
LOPE
Hi-Fi
DET
MODEM
ALC
DATA
DECODER
MODEM
FMBPF
VCO BPF
AUTO
ADJUST
D.O
COM.
FM
OUT
SW
2
3
REG
4
5
6
7
8
9
10
11
34
35
36
37
38
39
40
41
42
43
44
22
21
20
18
17
16
15
14
13
12
L
A
A
L
OUTPUT
SWITCH
PNR
27k
27k
100
μ
100
μ
47
μ
4
μ
2
1
FM REC OUT
4.7
μ
220
μ
220
μ
ENVELOPE
/ Hi-Fi DET
/ ADJ FLAG
FM PB IN
AUDIO HEAD
SWITCH
PULSE IN
N
M
L
1
2
2
L
N
M
f
D
C
0.022
μ
0
μ
0
μ
1
μ
0
μ
0
μ
LINE1 L IN
BS R IN
BS L IN
TUNER R IN
TUNER L IN
TUNER M IN
LINE1 R IN
V
CC
UNREG V
CC
LINE2 L IN
LINE2 R IN
4.7
k
4.7
k
V
EE
V
EE
4
μ
2
UNREG V
EE
19
V
EE
V
EE
1
μ
P.OFF: H
R35
Tr.35
Fig.2
Operation notes
The VCO oscillation frequency and frequency deviation, and the BPF center frequency are directly influenced by the
temperature characteristics of the setting resistors connected to pins 16 and 17. Use metal-film components.
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