參數(shù)資料
型號： TDA9330H
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： I2C-bus controlled TV display processors
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝： 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件頁數(shù)： 34/56頁
文件大?。?/td> 228K
代理商： TDA9330H
2000 May 08
34
Philips Semiconductors
Preliminary specification
I
2
C-bus controlled TV display processors
TDA933xH series
nominal scan. At an amplitude of 1.05 times the nominal scan, the output current is limited and the blanking of the
RGB outputs is activated, see Fig.14. In addition to the variation of the vertical amplitude, the picture can be vertically
shifted on the screen via the ‘scroll’ function. The nominal scan height must be adjusted at a position of 19H (25 DEC)
of the vertical ‘zoom’ DAC and 1FH (31 DEC) for the vertical ‘scroll’ DAC.
45. The vertical scroll function is active only in the expand mode of the vertical zoom, i.e. at a DAC position larger
than 10H (16 DEC).
46. With the vertical wait function, the start of the vertical scan can be delayed with respect to the incoming vertical sync
pulse. The operation is different for the various scan modes, see Table 54 and Figs 12 and 13. The minimum value
for the vertical wait is 8 line periods. If the setting is lower than 8, the wait period will remain 8 line periods.
47. In the TDA9330H and TDA9332H, the DAC output is I
2
C-bus controlled. In the TDA9331H, the DAC output voltage
is proportional to the centre frequency of the line-oscillator. In TV mode, the output voltage will always be at the
minimum value. In VGA mode, the output is at the minimum value for the lowest centre frequency (32 kHz) and at
the maximum value for the highest centre frequency (48 kHz). The output impedance of the DAC output depends on
the output voltage. The output consists of an emitter follower with an internal resistor of 50 k
to ground.
Table 54
Operation of the vertical wait function
MODE
START OF VERTICAL SCAN
1f
H
; TV mode
2f
H
; TV mode; VSR = 0
2f
H
; TV mode; VSR = 1
1f
H
; multi sync mode
2f
H
; multi sync mode
fixed; see Fig.12
end of V
D
plus vertical wait setting
start of V
D
plus vertical wait setting
start of V
D
plus vertical wait setting
start of V
D
plus vertical wait setting
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA9331H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled TV display processors
TDA9332 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled TV display processors
TDA9332H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled TV display processors
TDA9380 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TDA938O超級芯片將微處理器(CPU)與TV信號處理器集成在一起
TDA9383 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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