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| 型號(hào)： | SAA5250 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Interface for data acquisition and control for multi-standard teletext systems |
| 中文描述： | 接口數(shù)據(jù)采集和控制的多標(biāo)準(zhǔn)圖文電視系統(tǒng) |
| 文件頁(yè)數(shù)： | 27/35頁(yè) |
| 文件大?。?/td> | 173K |
| 代理商： | SAA5250 |
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January 1987
27
Philips Semiconductors
Product specification
Interface for data acquisition and control
(for multi-standard teletext systems)
SAA5250
Notes to the characteristics
1.
Unless R7 = 00 the value given is unacceptable.
2.
When CBI signal is maintained at 0 V (R7 = 00) and if SD input signal is correctly referenced to ground, no coupling
capacitor is required.
3.
DCK
+
50 is the DCK period plus 50 ns.
4.
3
×
DCK
110 is 3
×
DCK period
110 ns.
5.
3
×
DCK is 3
×
DCK period.
6.
2
×
DCK is 2
×
DCK period.
7.
X = irrelevant.
Demodulator interface
(see SD and DCK D.C.
CHARACTERISTICS)
DCK LOW
Fig.14
conversion
rate < 7,5 MHz
conversion
rate < 7,5 MHz
t
DCKL
55
ns
DCK HIGH
t
DCKH
t
SSD
t
HSD
t
SVALI
t
HVALI
55
0
30
50
50
ns
ns
ns
ns
ns
Serial data set-up time
Serial data hold time
Validation signal set-up time
Validation signal hold time
Other I/O signals
Fig.15
User definable width as a
multiple of DCK period
Validation signal width
User definable delay as a
multiple of DCK period
t
WCBB
t
WVAL
0
X
12
63
X
DCK
DCK
note 7
t
DVAL
0
127
DCK
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5250P | Interface for data acquisition and control for multi-standard teletext systems |
| SAA5250T | Interface for data acquisition and control for multi-standard teletext systems |
| SAA5252 | Line twenty-one acquisition and display LITOD |
| SAA5252P | Line twenty-one acquisition and display LITOD |
| SAA5252T | Line twenty-one acquisition and display LITOD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SAA5250T | 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 |
| SAA5252 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Line twenty-one acquisition and display LITOD |
| SAA5252P | 制造商:NXP Semiconductors 功能描述:TELETEXT DECODER, PDIP24 |
| SAA5252T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Line twenty-one acquisition and display LITOD |
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