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參數(shù)資料
| 型號： | SAA5254 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Integrated VIP and teletext decoder IVT1.1X |
| 中文描述： | 綜合貴賓和圖文電視解碼器IVT1.1X |
| 文件頁數(shù)： | 4/36頁 |
| 文件大?。?/td> | 805K |
| 代理商： | SAA5254 |
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1996 Nov 07
4
Philips Semiconductors
Preliminary specification
Integrated VIP and teletext decoder
(IVT1.1X)
SAA5254
PINNING
SYMBOL
PIN
DESCRIPTION
V
DD1
OSCOUT
OSCIN
OSCGND
V
SS1
REF+
BLACK
CVBS
1
2
3
4
5
6
7
8
+5 V supply 1
27 MHz crystal oscillator output
27 MHz crystal oscillator input
0 V crystal oscillator ground
0 V ground 1
Positive reference voltage for the ADC. This pin should be connected to +5 V.
Video black level storage pin, connected to ground via a 100 nF capacitor.
Composite video input pin. A positive-going 1 V (peak-to-peak) input is required,
connected via a 100 nF capacitor.
Reference current input pin, connected to ground via a 27 k
resistor.
+5 V supply 2
STTV/LFB/FFB polarity selection pin
Sync to TV output pin/line flyback input pin. Function controlled by an internal register bit
(scan sync mode).
PLL time constant switch/field flyback input pin. Function controlled by an internal register
bit (scan sync mode).
0 V ground 2
Dot rate character output of the RED colour information.
Dot rate character output of the GREEN colour information.
Dot rate character output of the BLUE colour information.
DC input voltage to define the output high level on the RGB pins.
Dot rate fast blanking output.
0 V ground 3
Programmable active LOW output to provide contrast reduction of the TV picture for mixed
text and picture displays or when viewing newsflash/subtitle pages; open drain output.
25 Hz output synchronized with the CVBS inputs field sync pulses to produce a
non-interlaced display by adjustment of the vertical deflection currents.
Dot rate character output of teletext foreground colour information; open drain output.
Serial clock input for the I
2
C-bus. It can still be driven during power-down of the device.
Serial input/output data port for the I
2
C-bus; open drain output. It can still be driven during
power-down of the device.
Internally connected. Must be left open-circuit in application.
IREF
V
DD2
POL
STTV/LFB
9
10
11
12
VCR/FFB
13
V
SS2
R
G
B
RGBREF
BLAN
V
SS3
COR
14
15
16
17
18
19
20
21
ODD/EVEN
22
Y
SCL
SDA
23
24
25
i.c.
26 to 40
相關PDF資料 |
PDF描述 |
|---|---|
| SAA5254P | Integrated VIP and teletext decoder IVT1.1X |
| SAA5261 | 10-page intelligent teletext decoders |
| SAA5262PS | 10-page intelligent teletext decoders |
| SAA5261PS | 10-page intelligent teletext decoders |
| SAA5262 | 10-page intelligent teletext decoders |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5254GP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| SAA5254P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated VIP and teletext decoder IVT1.1X |
| SAA5261 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-page intelligent teletext decoders |
| SAA5261PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-page intelligent teletext decoders |
| SAA5262 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-page intelligent teletext decoders |
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