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): 126/140頁
文件大小: 570K
代理商: TDA938X
1999 Sep 28
126
Philips Semiconductors
Preliminary Device Specification
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA935X/6X/8X series
Table 122
Output current of the phase detector in the various conditions
Note
1.
Only during vertical retrace, width 22
μ
s. In the other conditions the width is 5.7
μ
s and the gating is continuous.
I
2
C-BUS COMMANDS
IC CONDITIONS
-1 CURRENT/MODE
VID
0
POC
FOA
FOB
IFI
SL
NOISE
SCAN
V-RETR
GATING
yes
(1)
yes
no
yes
no
yes
yes
no
no
MODE
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
0
0
0
1
1
0
0
1
yes
yes
yes
yes
yes
yes
yes
no
yes
yes
no
yes
no
yes
yes
no
yes
no
yes
180
30
180
30
180
180
30
180
6
270
30
270
30
270
270
30
270
6
auto
auto
auto
slow
slow
fast
slow
fast
OSD
off
Fig.42 Simplified diagram crystal oscillator.
f
osc
C
i
L
i
C
tot
C
tot
×
+
C
×
2
π
-------------------1
=
C
tot
C
p
C
a
C
b
C
b
×
+
C
+
=
C
a
= C
i
+ C
x1
C
b
= C
o
+ C
x2
handbook, halfpage
MGR447
276
XTALO
crystal
or
ceramic
resonator
Ri
Li
Ci
gm
Cp
Ca
Cb
piXTALI
C
x2
C
C
o
C
i
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