AN5195K Ver la hoja de datos (PDF) - Panasonic Corporation
Número de pieza
componentes Descripción
Fabricante
AN5195K Datasheet PDF : 26 Pages
| |||
ICs for TV
AN5195K-C
s Terminal Equivalent Circuits (continued)
Pin No.
29
Equivalent circuit
9V
(VCC1)
Detection output
1.7 kΩ
PAL
NTSC
120 kΩ
60 kΩ 29
100 µA
1 200 pF
30
1.1 kΩ
1.1 kΩ
9V
(VCC1)
9V
30
To tuner
1.1 kΩ
40 kΩ 1.1 kΩ
max. 350 µΑ
31
3.4 V
50 µA
9V
(VCC1)
Ext. video
To
video SW
30 kΩ
50 kΩ
31
10 µF
100 µA
32
10 kΩ
9V
(VCC1)
typ. 4.5 V
3 kΩ
3 kΩ
1.7 kΩ
32
1.7 kΩ
10 µF
20 kΩ
100 µA
13 µA
33
9V
(VCC1)
33
SIF in
10 pF30 kΩ
4.4 V
1.8
kΩ
30 kΩ
200 µA
5 V to 7 V
100 µA
Sharpness
contorol
9V
100 µA
To SIF
limiter
amp.
Description
DC (V)
De-empahsis pin
• De-empahsis filter pin for sound
detection signal.
• External C is the same for PAL and
NTSC (internal impedance changes)
• PAL: 120 kΩ//60 kΩ × 1 200 pF = 48 µs
• NTSC: 60 kΩ × 1 200 pF = 72 µs
AC
0 kHz
to
20 kHz
AFT output pin
DC
• Center voltage offset should be
adjusted by using bus.
• If AFT defeat SW is turned on (09 =
00), V30 comes to a value determined
by the value of externally attached
resistor dividing.
• AFT µ is variable by impedance of
externally attached resistor.
External video input pin
• Input pin for external video signal.
DC cut input.
• Typical 1 V[p-p]
AC
1 V[p-p]
(composite)
Decoupling pin
• S curve inside IC is wide band but
DC feedback is applied so that DC
voltage of output signal becomes
constant.
• DC level (typ. 4.5 V)
fS → high: V32 → low
DC
approx. 2.0 V
DC
SIF signal input pin
• Common use with DC input pin for
sharpness control
• DC bias is applied from external
(DC: 5 V to 7 V for sharpness control)
AC+DC
AC
f = fS
19
Share Link: 