參數(shù)資料
型號: BT458LPJ80
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): 45/60頁
文件大?。?/td> 647K
代理商: BT458LPJ80
Bt457/Bt458
5.0 Parametric Information
125 MHz/135 MHz/165 MHz Monolithic CMOS 256 Color Palette RAMDAC
5.1 DC Electrical Parameters
L45801 Rev. N
Conexant
5-3
Table 5-3. DC Characteristics
(1 of 2)
Parameter
Symbol
Min
Typ
Max
Units
Analog Outputs
Resolution (Each DAC)
8 (4)
8 (4)
8 (4)
Bits
Accuracy (Each DAC)
Integral Linearity Error
IL
±1 (1/8)
LSB
Differential Linearity Error
DL
±1 (1/16)
LSB
Gray-Scale Error
±5
%Gray Scale
Monotonicity
Guaranteed
Coding
Binary
Digital Inputs (Except CLOCK, CLOCK*)
Input High Voltage
VIH
2.0
VAA + 0.5
V
Input Low Voltage
VIL
GND
0.5
0.8
V
Input High Current (Vin = 4.0 V)
IIH
1
μA
Input Low Current (Vin = 0.4 V)
IIL
1
μA
Input Capacitance (f = 1 MHz, Vin = 2.4 V)
CIN
4
10
pF
Clock Inputs (CLOCK, CLOCK*)
Differential Input Voltage
VIN
0.6
6
V
Input High Current (Vin = 4.0 V)
IKIH
1
μA
Input Low Current (Vin = 0.4 V)
IIKIL
1
μA
Input Capacitance (f = 1 MHz, Vin = 4.0 V)
CKIN
4
10
pF
Digital Outputs D[7:0]
Output High Voltage (IOH =
800 μA)
VOH
2.4
V
Output Low Voltage (IOL = 6.4 mA)
VOL
0.4
V
3-State Current
IOZ
10
μA
Output Capacitance
CDOUT
10
pF
Analog Outputs
Output Current
White Level Relative to Blank
17.69
19.05
20.40
mA
White Level Relative Black
16.74
17.62
18.50
mA
Black Level Relative to Blank
0.95
1.44
1.90
mA
Blank Level on IOR, IOB
0
5
50
μA
Blank Level on IOG or IOUT
6.29
7.62
8.96
mA
Sync Level on IOG or IOUT
0
5
50
μA
LSB Size
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