TDA9725 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
TDA9725 Datasheet PDF : 44 Pages
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Philips Semiconductors
Y/C automatic adjustment processor
(VHS standard)
Product specification
TDA9725
handbook, full pagewidth
AGCKP1
CF892
COMB
270 Ω
4 -15 dB 3
2
TP1
1.3
kΩ
15
10 nF µH
PBCI
PBCO
CFI
39 38
37
36
A
CDO
35
LPF
C* fH/2
SEC
COMB
DRIVER
SNP
34
10 nF
GND(C)
BMI
33
ACCO
32
31
CFT VCC(C)
0.1
10 nF
µF
30
29
CTT fH/2
28 27
50 kΩ
BALANCED
from
MIXER
4 PHI
BPF
630
PB
CK
H BLANK
NAP
PB/SP
BURST
DOWN
BURST UP
REC
ACC
ACC
DETECTOR
PB
REC
PB
BPF
LPF
PB/LP
REC
4.43
630
from pin 43 REC
MUTE
MUTE
HSS
TIMER
: 40
CK/FPC
DETECTOR
PHI/PB
VXO
REC
RECORD
AFC
PB
REC
FPC to BM
CK
TDA9725
fsc
3rd
LOCK
50 kΩ
15
16
SLD
4 PHI : 4
FREQUENCY
DETECTOR
17
18 19
DIVIDER
SUBMIXER
LPF
20
21
VCO
22
0.1
µF
ELS
CK
BGP ROT
(1)
1 µF
22 kΩ
120
kΩ
470
pF
680
Ω
47
nF
FCO
0.1 µF
(1)
1 µF
(1)
LFVXO
LFVCO
CK
fH/2
X2
VXO
REC
PB
SEC
MUTE
VCC(C)
8.0
kΩ
23
24
XTALI
25
XTALO
TEW 8H
4.43619
33
MHz
pF
fsc
2 fsc
4.7 kΩ
26
6.8
µH
VCC(C)
MGB695
(1) Low leakage current.
1996 Oct 14
Fig.2 Block diagram (continued from Fig.1).
4
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