參數(shù)資料
型號(hào): TDA9321
廠商: NXP Semiconductors N.V.
英文描述: I2C-bus controlled TV input processor
中文描述: 的I2C控制的電視處理器總線輸入
文件頁數(shù): 14/44頁
文件大小: 249K
代理商: TDA9321
1998 Dec 16
14
Philips Semiconductors
Preliminary specification
I
2
C-bus controlled TV input processor
TDA9321H
Notes
1.
When bit ECMB = 1 the subcarrier frequency is present on pin 30. The YCF and CCF signals coming from the comb
filter are only switched on when a signal is received that can be combed.
X = don’t care.
AUTO YC means the decoder switches between CVBS and Y/C depending on the presence of the burst signal on
these signals.
AUTO COMB means the decoder switches to Y/C mode if the burst is present on the C input and to the comb filter
output if the burst is present on the CVBS signal.
2.
3.
4.
Table 24
Video switch outputs
Table 25
Enable YUV input (on RGB1 input)
Table 26
External RGB clamp mode
Table 27
Enable fast blanking RGB1
Table 28
Enable fast blanking RGB2
TXT2
PIP2
TXT1
PIP1
TXT0
PIP0
0
1
0
1
0
1
OUTPUT SIGNAL TXT
OUTPUT SIGNAL PIP
0
0
0
1
1
1
1
0
1
1
0
0
1
1
CVBS
int
CVBS1
CVBS2
CVBS3
Y3 + C3
CVBS4
Y4 + C4
YUV
MODE
0
1
RGB1 input active
YUV input active
ECL
MODE
0
1
off; internal clamp pulse used
on; external clamp pulse has to be supplied to
pin HA/CLP
IE1
FAST BLANKING
0
1
not active
active
IE2
FAST BLANKING
0
1
not active
active
Table 29
Output switches OS0 and OS1
Table 30
Fast filter IF-PLL
Table 31
IF circuit not active
Table 32
Group delay correction
Table 33
Modulation standard
Table 34
AFC window
OS0; OS1
CONDITIONS
0
1
output = LOW
output = HIGH
FFI
CONDITIONS
0
1
normal time constant
fast time constant
IFO
MODE
0
1
normal operation of IF amplifier
IF amplifier switched off
GD
GROUP DELAY CHARACTERISTIC
0
1
flat
according to BG standard
MOD
MODULATION
0
1
negative
positive
AFW
AFC WINDOW
0
1
normal
enlarged
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