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): 97/140頁
文件大?。?/td> 570K
代理商: TDA938X
1999 Sep 28
97
Philips Semiconductors
Preliminary Device Specification
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA935X/6X/8X series
Table 94
Auto Volume Levelling
Table 95
Nominal frequency FM demodulator
Table 96
Enable fast blanking ext.RGB/YUV
Table 97
RGB blanking
Table 98
Black current stabilization
AVL
MODE
0
1
not active
active
FMA
FMB
FREQUENCY
0
0
1
1
0
1
0
1
5.5 MHz
4.5 MHz
6.0 MHz
6.5 MHz
IE2
FAST BLANKING
0
1
not active
active
RBL
RGB BLANKING
0
1
not active
active
AKB
MODE
0
1
active
not active
Table 99
Cathode drive level (15 steps; 3.5 V/step)
Note
1.
The given values are valid for the following conditions:
a) - Nominal CVBS input signal
b) - Nominal settings for contrast, WPA and peaking
c) - Black- and blue-stretch switched-off
d) - Gain of output stage such that no clipping occurs
e) - Beam current limiting not active
f) The tolerance on these values is about
±
3 V.
Table 100
RGB / YUV switch
Table 101
RGB blanking mode (110
°
types)
Table 102
Black stretch
CL3
CL2
CL1
CL0
SETTING CATHODE
DRIVEAMPLITUDE;NOTE
1
0
0
1
0
1
1
0
1
1
0
1
1
50 V
BL-WH
75 V
BL-WH
95 V
BL-WH
YUV
STATUS
0
1
RGB input activated
YUV input activated
HBL
MODE
0
1
normal blanking (horizontal flyback)
wide blanking
BKS
BLACK STRETCH MODE
0
1
off
on
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