參數(shù)資料
型號(hào): ADV7172KST
廠商: ANALOG DEVICES INC
元件分類: 顏色信號(hào)轉(zhuǎn)換
英文描述: Digital PAL/NTSC Video Encoder with Six DACs 10 Bits, Color Control and Enhanced Power Management
中文描述: COLOR SIGNAL ENCODER, PQFP48
封裝: PLASTIC, TQFP-48
文件頁數(shù): 7/59頁
文件大?。?/td> 455K
代理商: ADV7172KST
ADV7172/ADV7173
–7–
REV. A
3.3 V TIMING SPECIFICATIONS
(V
AA
= +3.0 V–3.6 V
1
, V
REF
= 1.235 V, R
SET1,2
= 600
V
. All specifications T
MIN
to T
MAX2
unless
otherwise noted.)
Parameter
Conditions
Min
Typ
Max
Units
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
ANALOG OUTPUTS
3, 5
Analog Output Delay
DAC Analog Output Skew
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 1st clock is generated
relevant for repeated Start Condition.
300
300
0.6
7
0
ns
ns
CLOCK CONTROL AND
PIXEL PORT
4, 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
14
Pipeline Delay, t
15
TELETEXT PORT
3, 4, 7
Digital Output Access Time, t
16
Data Setup Time, t
17
Data Hold Time, t
18
RESET CONTROL
3, 4
RESET
Low Time
27
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Clock Cycles
8
8
4.0
5
5
3
20
12
37
23
2
6
ns
ns
ns
3
ns
NOTES
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 3.0 V to 3.6 V range.
2
Temperature range T
to T
: 0
°
C to +70
°
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:
P7–P0
Pixel Controls:
HSYNC
, FIELD/
VSYNC
,
BLANK, VSO,
CSO_HSO
, CLAMP
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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ADV7173 制造商:AD 制造商全稱:Analog Devices 功能描述:Digital PAL/NTSC Video Encoder with Six DACs 10 Bits, Color Control and Enhanced Power Management