參數(shù)資料
型號: BT457KPJ80
英文描述: Video DAC with Color Palette (RAMDAC)
中文描述: 視頻DAC的調(diào)色板(的RAMDAC)
文件頁數(shù): 47/60頁
文件大?。?/td> 647K
代理商: BT457KPJ80
Bt457/Bt458
5.0 Parametric Information
125 MHz/135 MHz/165 MHz Monolithic CMOS 256 Color Palette RAMDAC
5.2 AC Electrical Parameters
L45801 Rev. N
Conexant
5-5
5.2 AC Electrical Parameters
Table 5-4. AC Characteristics for 165 MHz and 135 MHz Devices
(1 of 2)
165 MHz Devices
135 MHz Devices
Parameter
Symbol
Min
Typ
Max
Min
Typ
Max
Units
Clock Rate
Fmax
165
135
MHz
LD* Rate
LDmax
41.25
33.75
MHz
R/W, C0, C1 Setup Time
1
0
0
ns
R/W, C0, C1 Hold Time
2
15
15
ns
CE* Low Tiime
3
50
50
ns
CE* High Time
4
25
25
ns
CE* Asserted to Data Bus Driven
5
7
7
ns
CE* Asserted to Data Valid
6
75
75
ns
CE* Negated to Data Bus 3-Stated
7
15
15
ns
Write Data Setup Time
8
35
35
ns
Write Data Hold Time
9
3
3
ns
Pixel and Control Setup Time
10
3
3
ns
Pixel and Control Hold Time
11
2
2
ns
Clock Cycle Time
12
6.06
7.4
ns
Clock Pulse Width High Time
13
2.6
3
ns
Clock Pulse Width Low Time
14
2.6
3
ns
LD* Cycle Time
15
24.24
29.63
ns
LD* Pulse Width High Time
16
10
12
ns
LD* Pulse Width Low Time
17
10
12
ns
Analog Output Delay
18
12
12
ns
Analog Output Rise/Fall Time
19
2
2
ns
Analog Output Settling Time
20
8
8
ns
Clock and Data Feedthrough
(1)
35
35
pV
sec
Glitch Impulse
(1)
50
50
pV
sec
Analog Output Skew
(2)
0
2
0
2
ns
Pipeline Delay
6
10
Clocks
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