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): 113/140頁
文件大?。?/td> 570K
代理商: TDA938X
1999 Sep 28
113
Philips Semiconductors
Preliminary Device Specification
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA935X/6X/8X series
Horizontal and vertical synchronization and drive circuits
S
YNC VIDEO INPUT
H.1.1
H.1.2
H.1.3
sync pulse amplitude
slicing level for horizontal sync
slicing level for vertical sync
note 3
note 35
note 35
50
300
50
30
350
mV
%
%
H
ORIZONTAL OSCILLATOR
H.2.1
H.2.2
free running frequency
spread on free running
frequency
frequency variation with respect
to the supply voltage
frequency variation with
temperature
15625
±
2
Hz
%
H.2.3
V
P
= 8.0 V
±
10%; note 6
0.2
0.5
%
H.2.4
T
amb
= 0 to 70
°
C; note 6
80
Hz
F
IRST CONTROL LOOP
;
NOTE
36
H.3.1
H.3.2
H.3.3
holding range PLL
catching range PLL
signal-to-noise ratio of the video
input signal at which the time
constant is switched
hysteresis at the switching point
±
0.6
±
0.9
±
0.9
20
±
1.2
kHz
kHz
dB
note 6
H.3.4
3
dB
S
ECOND CONTROL LOOP
H.4.1
H.4.2
control sensitivity
control range from start of
horizontal output to flyback at
nominal shift position
horizontal shift range
control sensitivity for dynamic
compensation
Voltage to switch-on the ‘flash’
protection
Input current during protection
control range of the
parallelogram correction
control range of the bow
correction
150
19
μ
s/
μ
s
μ
s
H.4.3
H.4.4
63 steps
±
2
7.6
μ
s
μ
s/V
H.4.5
note 37
6
V
H.4.6
H.4.7
±
0.5
1
mA
μ
s
note 38
H.4.8
note 38
±
0.5
μ
s
NUMBER
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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