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參數資料
| 型號： | ADV7170 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Digital PAL/NTSC Video Encoder with 10-Bit SSAF⑩ and Advanced Power Management |
| 中文描述： | 數碼PAL / NTSC視頻編碼器與10位SSAF⑩和高級電源管理 |
| 文件頁數： | 5/55頁 |
| 文件大小： | 754K |
| 代理商： | ADV7170 |
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ADV7170/ADV7171
–5–
REV. 0
5 V TIMING SPECIFICATIONS
(V
AA
= 4.75 V – 5.25 V
1
, V
REF
= 1.235 V, R
SET
= 150
V
. All specifications T
MIN
to T
MAX2
unless
otherwise noted.)
Parameter
MPU PORT
3, 4
SCLOCK Frequency
SCLOCK High Pulsewidth, t
1
SCLOCK Low Pulsewidth, t
2
Hold Time (Start Condition), t
3
Setup Time (Start Condition), t
4
Data Setup Time, t
5
SDATA, SCLOCK Rise Time, t
6
SDATA, SCLOCK Fall Time, t
7
Setup Time (Stop Condition), t
8
Conditions
Min
Typ
Max
Units
0
0.6
1.3
0.6
0.6
100
400
kHz
μ
s
μ
s
μ
s
μ
s
ns
ns
ns
μ
s
After This Period the First Clock Is Generated
Relevant for Repeated Start Condition
300
300
0.6
ANALOG OUTPUTS
3, 5
Analog Output Delay
DAC Analog Output Skew
7
0
ns
ns
CLOCK CONTROL AND
PIXEL PORT
5, 6
f
CLOCK
Clock High Time, t
9
Clock Low Time, t
10
Data Setup Time, t
11
Data Hold Time, t
12
Control Setup Time, t
11
Control Hold Time, t
12
Digital Output Access Time, t
13
Digital Output Hold Time, t
144
Pipeline Delay, t
154
27
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Clock Cycles
8
8
3.5
4
4
3
11
8
48
16
TELETEXT
3, 4, 7
Digital Output Access Time, t
16
Data Setup Time, t
17
Data Hold Time, t
18
20
2
6
ns
ns
ns
RESET CONTROL
3, 4
RESET
Low Time
6
ns
NOTES
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 4.75 V to 5.25 V range.
2
Temperature range T
MIN
to T
MAX
: 0
o
C to +70
o
C.
3
TTL input values are 0 to 3 volts, with input rise/fall times
≤
3 ns, measured between the 10% and 90% points. Timing reference points at 50% for inputs and
outputs. Analog output load
≤
10 pF.
4
Guaranteed by characterization.
5
Output delay measured from the 50% point of the rising edge of CLOCK to the 50% point of full-scale transition.
6
Pixel Port consists of the following:
Pixel Inputs:
P15–P0
Pixel Controls:
HSYNC
, FIELD/
VSYNC
,
BLANK
Clock Input:
CLOCK
7
Teletext Port consists of the following:
Teletext Output:
TTXREQ
Teletext Input:
TTX
Specifications subject to change without notice.
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