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): 111/140頁
文件大小: 570K
代理商: TDA938X
1999 Sep 28
111
Philips Semiconductors
Preliminary Device Specification
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA935X/6X/8X series
F
AST BLANKING
S.3.1
S.3.2
S.3.3
S.3.4
input voltage
no data insertion
data insertion
insertion
data insertion; note 6
0.9
0.4
3.0
tbf
V
V
V
ns
maximum input pulse
delay time from RGB in to
RGB out
delay difference between
insertion to RGB out and
RGB in to RGB out
input current
suppression of internal RGB
signals
suppression of external RGB
signals
S.3.5
data insertion; note 6
tbf
ns
S.3.6
S.3.7
55
0.2
mA
dB
notes 6 and 28; insertion;
f
i
= 0 to 5 MHz
notes 6 and 28; no insertion;
f
i
= 0 to 5 MHz
S.3.8
55
dB
Chrominance filters
C
HROMINANCE TRAP CIRCUIT
;
NOTE
32
F.1.1
F.1.2
F.1.3
F.1.4
F.1.5
trap frequency
Bandwidth at f
SC
= 3.58 MHz
Bandwidth at f
SC
= 4.43 MHz
colour subcarrier rejection
trap frequency during SECAM
reception
24
f
osc
2.8
3.4
26
4.3
MHz
MHz
MHz
dB
MHz
3 dB
3 dB
C
HROMINANCE BANDPASS CIRCUIT
F.2.1
F.2.2
F.2.3
centre frequency (CB = 0)
centre frequency (CB = 1)
bandpass quality factor
f
osc
1.1
×
f
osc
3
MHz
MHz
C
LOCHE FILTER
F.3.1
F.3.2
centre frequency
Bandwidth
4.26
241
4.29
268
4.31
295
MHz
kHz
NUMBER
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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