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Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ...

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Electrical Characteristics<br />

11.3.1 RGB/CRT DAC Display DC Characteristics (Intel ®<br />

82<strong>945G</strong>/82<strong>945G</strong>C/82<strong>945G</strong>Z GMCH Only)<br />

Table 11-6. RGB/CRT DAC Display DC Characteristics: Functional Operating Range<br />

(VCCA_DAC = 2.5 V �5%)<br />

270<br />

Parameter Min<br />

Typica<br />

l<br />

Max Units Notes<br />

DAC Resolution 8 — — Bits 1<br />

Max Luminance (full-scale) 0.665 0.700 0.770 V<br />

Min Luminance — 0.000 — V<br />

LSB Current — 73.2 — �A 4, 5<br />

Integral Linearity (INL) -1.0 — +1.0 LSB 1, 6<br />

Differential Linearity (DNL) -1.0 — +1.0 LSB 1, 6<br />

Video channel-channel voltage amplitude<br />

mismatch<br />

Monotonicity Ensured<br />

— — 6 % 7<br />

1, 2, 4 (white video<br />

level voltage)<br />

1, 3, 4 (black video<br />

level voltage)<br />

NOTES:<br />

1. Measured at each R, G, B termination according to the VESA Test Procedure – Evaluation of Analog<br />

Display Graphics Subsystems Proposal (Version 1, Draft 4, December 1, 2000).<br />

2. Maximum steady-state amplitude<br />

3. Minimum steady-state amplitude<br />

4. Defined for a double 75-� termination.<br />

5. Set by external reference resistor value.<br />

6. INL and DNL measured and calculated according to VESA Video Signal Standards.<br />

7. Max full-scale voltage difference among R, G, B outputs (percentage of steady-state full-scale voltage).<br />

§

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