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TDA9725 датащи(PDF) 9 Page - NXP Semiconductors

номер детали TDA9725
подробное описание детали  Y/C automatic adjustment processor VHS standard
Download  44 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA9725 датащи(HTML) 9 Page - NXP Semiconductors

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1996 Oct 14
9
Philips Semiconductors
Product specification
Y/C automatic adjustment processor
(VHS standard)
TDA9725
Negative feedback input of main emphasis (pin 4; open-base) and main emphasis
output/white-clip/modulator/SQPB selector (pin 5)
FEEDBACK LOOP CLOSED (PIN 4 CONNECTED TO PIN 5; MAIN EMPHASIS OFF)
VSY
DC voltage level
sync tip
1.9
V
VoREC(p-p)
record output voltage level;
standard output level
(peak-to-peak value)
video/sync = 7/3;
∆VCC = ±0.25 V;
Tamb = −10 to +70 °C
450
500
550
mV
tFRAMEDET
time for correcting carrier
interleave relationship to
half picture
HIGH during half picture 1; note 1
−−
200
ms
NON-LINEAR EMPHASIS/DETAIL ENHANCER; notes 2 and 3
RD1
response D1
−20 dB; fi = 500 kHz; SP; NORM 1.7
2.7
3.7
dB
RD2
response D2
−20 dB; fi = 2 MHz; SP; NORM
6.0
7.5
9.0
dB
RS1
response S1
−20 dB; fi = 500 kHz; SP; EDIT
1.0
1.7
2.4
dB
RS1
response S2
−20 dB; fi = 2 MHz; SP; EDIT
4.5
5.5
6.5
dB
RL1
response L1
−20 dB; fi = 500 kHz; LP
3.1
4.4
5.7
dB
RL2
response L2
−20 dB; fi = 2 MHz; LP
7.0
9.0
11
dB
RL3
response L3
0 dB; fi = 2 MHz; LP
1.6
2.3
3.0
dB
VERTICAL EMPHASIS
PL1
peak level 1
−30 dB recursive; note 4
3.5
4.3
5.3
dB
PL2
peak level 2
−20 dB recursive; note 4
3.5
4.0
4.5
dB
PL3
peak level 3
0 dB recursive
0
0.4
1.0
dB
FEEDBACK LOOP NORMAL APPLICATION
DCL
dark-clip level
50
60
70
%
WCL
white-clip level
180
187
194
%
V5
SQPB input voltage
playback mode
4.0
−−
V
Record storage capacitor for f0 processor and playback storage capacitor for envelope detector (pin 7)
VI
DC voltage
record mode
1.2
V
VNOR
DC voltage of normal mode
playback mode;
Vi = 350 mV (p-p); pin 14 HIGH
2.3
3.3
4.0
V
VOFF
DC voltage of dropout
correction (DOC) off mode
playback mode
0
1.3
V
VNS
DC voltage at no input
signal
playback mode
1.1
1.6
2.1
V
GEon
envelope detector
switch-on level
(dropout active)
playback mode;
0dB=Vi = 350 mV (p-p);
fi = 3.8 MHz; pin 14 HIGH
−13
−10
−7dB
tenv
envelope detector operating
time
Ci = 0.1 µF
380
500
620
µs
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT


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