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參數(shù)資料
| 型號： | SAA5249GP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 圖文 |
| 英文描述： | Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX |
| 中文描述： | TELETEXT DECODER, PQFP64 |
| 封裝： | PLASTIC, SOT-319, QFP-64 |
| 文件頁數(shù)： | 4/44頁 |
| 文件大?。?/td> | 821K |
| 代理商： | SAA5249GP |
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1996 Nov 07
4
Philips Semiconductors
Preliminary specification
Integrated VIP and Teletext with
Background Memory Controller
SAA5249
PINNING
SYMBOL
PIN
DESCRIPTION
SOT240-1
SOT319-1
(1)
n.c.
n.c.
V
DD1
OSCOUT
OSCIN
GNDO
V
SS1
REF+
1
2
3
4
5
6
7
8
1
2
25
27
28
29
12
32
not connected
not connected
+5 V supply
27 MHz crystal oscillator output
27 MHz crystal oscillator input
0 V crystal oscillator ground
0 V ground
positive reference voltage; this pin should be connected to ground via a
100 nF capacitor
video black level storage pin; this pin should be connected to ground via a
100 nF capacitor
composite video input pin; a positive-going 1 V (p-p) input is required,
connected via a 100 nF capacitor
reference current input pin; connected to ground via a 27 k
resistor
+5 V supply
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 input pin; function controlled by an internal
register bit (scan sync mode)
0 V ground
negative reference voltage; this pin should be connected to REF+ via a
100 nF capacitor
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
input DC voltage to define the output high level on the RGB pins
dot rate fast blanking output
0 V ground; internally connected for SOT319
column address select to external DRAM for BMCX function
column address select to external DRAM for BMCX function for second
DRAM where two 256 k
×
4 devices are used
address output to external DRAM for BMCX function
address output to external DRAM for BMCX function
programmable 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 input field sync pulses to
produce a non-interlaced display by adjustment of the vertical deflection
currents
BLACK
9
35
CVBS
10
36
IREF
V
DD2
POL
STTV/LFB
11
12
13
14
37
38
39
40
VCR/FFB
15
42
V
SS2
REF
16
30
31
R
G
B
RGBREF
BLANK
V
SS3
CAS0
CAS1
17
18
19
20
21
22
23
24
49
50
51
52
53
54, 55
56
57
A4
A3
COR
25
26
27
58
59
60
ODD/EVEN
28
61
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5249 | Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX |
| SAA5249P | Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX |
| SAA5250 | Interface for data acquisition and control for multi-standard teletext systems |
| SAA5250P | Interface for data acquisition and control for multi-standard teletext systems |
| SAA5250T | Interface for data acquisition and control for multi-standard teletext systems |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5249GP/E | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX |
| SAA5249P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX |
| SAA5249P/E | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX |
| SAA5250 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Interface for data acquisition and control for multi-standard teletext systems |
| SAA5250P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Interface for data acquisition and control for multi-standard teletext systems |
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