參數(shù)資料
型號: SAA55XX
廠商: NXP Semiconductors N.V.
英文描述: TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)
中文描述: 與隱藏字幕(CC)和屏幕顯示(OSD電視微控制器)
文件頁數(shù): 74/84頁
文件大小: 352K
代理商: SAA55XX
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
相關PDF資料
PDF描述
SAA6712E ECONOLINE: RB & RA - Dual Output from a Single Input Rail- Power Sharing on Output- Industry Standard Pinout- 1kVDC & 2kVDC Isolation- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 85%
SAA6713AH XGA analog input flat panel controller
SAA6713H XGA dual input flat panel controller
SAA7110 Digital Multistandard Colour Decoder(數(shù)字多標準彩色譯碼器)
SAA7111 Video Input Processor VIP
相關代理商/技術參數(shù)
參數(shù)描述
SAA5603 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
SAA5645 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5645HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5647 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5647HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD