AC82G41SLGQ3 Datasheet, PDF (566/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Electrical Characteristics
14.3.3 R, G, B / CRT DAC Display DC Characteristics (Intel^®
82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only)
Table 52.
R, G, B / CRT DAC Display DC Characteristics: Functional Operating Range
(VCCA_DAC = 3.3 V 5%)
Parameter
Min Typical Max Unit
Notes
DAC Resolution
Max Luminance (full-scale)
Min Luminance
LSB Current
Integral Linearity (INL)
Differential Linearity (DNL)
—
.665
—
-1.0
-1.0
8
.700
0.000
73.2
—
—
—
.770
—
—
+1.0
+1.0
Bits
V
V
uA
LSB
LSB
1
1, 2, 4 _{(white video level voltage)}
1, 3, 4 _{(black video level voltage)}
4,5
1,6
1,6
Video channel-channel voltage
amplitude mismatch
—
—
6
%
7
Monotonicity
Ensured
NOTES:
1. Measured at each R, G, B termination according to the VESA Test Procedure - Evaluation of Analog Display Graphics Subsystems
Proposal (Version 1, Draft 4, December 1, 2000).
2. Max steady-state amplitude
3. Min steady-state amplitude
4. Defined for a double 75 ohm termination.
5. Set by external reference resistor value.
6. INL and DNL measured and calculated according to VESA Video Signal Standards.
7. Max full-scale voltage difference among R, G, B outputs (percentage of steady-state full-scale voltage).
14.3.4 Di/dt Characteristics
To decrease voltage regulator costs, design time and to improve voltage regulator
efficiency, di/dt values can be used for these purposes. Also, di/dt values can be used
to understand how customer's Voltage Regulator (VR) feedback mechanism has to
work to limit the noise within voltage tolerance specifications.
For example, when a sudden current change (di/dt) is seen by VR, it will not follow that
demand, it will have some slow response. During that time, its output voltage will tend
to go low, if the response is not fast enough, they will violate voltage tolerance
specifications.
Cost of VR is also a function of how fast the response time is, by having di/dt data,
customers can hold dV in voltage tolerance specifications using minimum cost.
Two sets of di/dt values are provided:
"at VR level: used to optimize VR
"at package pin level: used to optimize motherboard edge capacitor
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Datasheet