參數(shù)資料
型號: TDA938X
廠商: NXP Semiconductors N.V.
英文描述: TV signal processor-Teletext decoder with embedded m-Controller
中文描述: 電視信號處理器與嵌入式米圖文電視解碼器控制器
文件頁數(shù): 114/140頁
文件大小: 570K
代理商: TDA938X
1999 Sep 28
114
Philips Semiconductors
Preliminary Device Specification
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA935X/6X/8X series
H
ORIZONTAL OUTPUT
;
NOTE
39
H.5.1
H.5.2
LOW level output voltage
maximum allowed output
current
maximum allowed output
voltage
duty factor
switch-on time of horizontal
drive pulse
switch-off time of horizontal
drive pulse
I
O
= 10 mA
10
0.3
V
mA
H.5.3
V
P
V
H.5.4
H.5.5
V
OUT
= LOW (T
ON
)
55
100
%
ms
H.5.6
43
ms
F
LYBACK PULSE INPUT AND SANDCASTLE OUTPUT
H.6.1
required input current during
flyback pulse
output voltage
note 3
100
300
μ
A
H.6.2
during burst key
during blanking
4.8
1.8
2.6
5.3
2.0
3.0
5.8
2.2
3.4
V
V
V
H.6.3
clamped input voltage during
flyback
pulse width
H.6.4
H.6.5
H.6.6
burst key pulse
vertical blanking, note 40
3.3
4.6
3.5
14
4.8
3.7
5.0
μ
s
lines
μ
s
delay of start of burst key to
start of sync
V
ERTICAL OSCILLATOR
;
NOTE
41
H.7.1
H.7.2
H.7.3
H.7.4
free running frequency
locking range
divider value not locked
locking range
45
434/488
50/60
625/525
64.5/72 Hz
722
Hz
lines
lines/
frame
V
ERTICAL RAMP GENERATOR
H.8.1
sawtooth amplitude
(peak-to-peak value)
discharge current
charge current set by external
resistor
vertical slope
charge current increase
LOW level of ramp
VS = 1FH;
C = 100 nF; R = 39 k
3.0
V
H.8.2
H.8.3
1
16
mA
μ
A
note 42
H.8.4
H.8.5
H.8.6
control range (63 steps)
f = 60 Hz
20
19
2.3
+20
%
%
V
V
ERTICAL DRIVE OUTPUTS
H.9.1
differential output current
(peak-to-peak value)
common mode current
output voltage range
VA = 1FH
0.95
mA
H.9.2
H.9.3
0
400
4.0
μ
A
V
NUMBER
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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