參數(shù)資料
型號(hào): 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(yè)數(shù): 51/60頁(yè)
文件大小: 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
5-9
Table 5-6. AC Characteristics for 80 MHz Device
(1 of 2)
80 MHz Devices
Parameter
Symbol
Min
Typ
Max
Units
Clock Rate
Fmax
80
MHz
LD* Rate
LDmax
20
MHz
R/W, C0, C1 Setup Time
1
0
ns
R/W, C0, C1 Hold Time
2
15
ns
CE* Low Time
3
50
ns
CE* High Time
4
25
ns
CE* Asserted to Data Bus Driven
5
7
ns
CE* Asserted to Data Valid
6
75
ns
CE* Negated to Data Bus 3-Stated
7
15
ns
Write Data Setup Time
8
35
ns
Write Data Hold Time
9
3
ns
Pixel and Control Setup Time
10
4
ns
Pixel and Control Hold Time
11
2
ns
Clock Cycle Time
12
12.5
ns
Clock Pulse Width High Time
13
5
ns
Clock Pulse Width Low Time
14
5
ns
LD* Cycle Time
15
50
ns
LD* Pulse Width High Time
16
20
ns
LD* Pulse Width Low Time
17
20
ns
Analog Output Delay
18
12
ns
Analog Output Rise/Fall Time
19
2
ns
Analog Output Settling Time
20
8
ns
Clock and Data Feedthrough
(1)
35
pV
sec
Glitch Impulse
(1)
50
pV
sec
Analog Output Skew
(2)
0
2
ns
Pipeline Delay
6
10
Clocks
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