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參數(shù)資料
| 型號(hào)： | SAA5540PS |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | TV Microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)(帶關(guān)閉字幕和全屏顯示的TV控制器) |
| 中文描述： | 電視微控制器與隱藏字幕（CC）和屏幕顯示（OSD）（帶關(guān)閉字幕和全屏顯示的電視控制器） |
| 文件頁(yè)數(shù)： | 74/84頁(yè) |
| 文件大?。?/td> | 318K |
| 代理商： | SAA5540PS |
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2000 Feb 23
74
Philips Semiconductors
Preliminary specification
TV microcontrollers with Closed Captioning (CC)
and On-Screen Display (OSD)
SAA55xx
Table 29
I
2
C-bus characteristics
Notes
1.
A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the V
IH(min
) of the SCL
signal) in order to bridge the undefined region of the falling edge of SCL.
The maximum f
HD;DAT
has only to be met if the device does not stretch the LOW period t
LOW
of the SCL signal.
A fast-mode I
2
C-bus device can be used in a standard-mode I
2
C-bus system, but the requirement t
SU;DAT
≥
250 ns
must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal.
If such a device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line
t
rmax
+ t
SU;DAT
= 1000 + 250 = 1250 ns (according to the standard-mode I
2
C-bus specification) before the SCL line
is released.
C
b
= total capacitance of one bus line in pF.
2.
3.
4.
SYMBOL
PARAMETER
FAST-MODE I
2
C-bus
UNIT
MIN.
MAX.
f
SCL
t
BUF
t
HD;STA
SCL clock frequency
bus free time between a STOP and START condition
hold time (repeated) START condition. After this period, the first
clock pulse is generated.
LOW period of the SCL clock
HIGH period of the SCL clock
set up time for a repeated START condition
data hold time; notes 1 and 2
data set up time; note 3
rise time of both SDA and SCL signals; note 4
fall time of both SDA and SCL signals; note 4
set up time for STOP condition
capacitive load for each bus line
0
1.3
0.6
400
kHz
μ
s
μ
s
t
LOW
t
HIGH
t
SU;STA
t
HD;DAT
t
SU;DAT
t
r
t
f
t
SU;STO
C
b
1.3
0.6
0.6
0
100
20
20
0.6
0.9
300
300
400
μ
s
μ
s
μ
s
μ
s
ns
ns
ns
μ
s
pF
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| SAA5542PS | TV Microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)(帶關(guān)閉字幕和全屏顯示的TV控制器) |
| SAA5543PS | TV Microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)(帶關(guān)閉字幕和全屏顯示的TV控制器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5540PS/NNNN | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD) |
| SAA5541PS/NNNN | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD) |
| SAA5542 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
| SAA5542PS/NNNN | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD) |
| SAA5542TRI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic |
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