CS5530A datasheet(246/259 Pages) AMD

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246

AMD Geode™ CS5530A Companion Device Data Book

Electrical Specifications

Revision 1.1

6.6

Display Characteristics

The following tables and figures describe the characteris-

tics of the CRT, TFT/TV and MPEG Display interfaces. It is

divided into the following categories:

• CRT Display Recommended Operating Conditions

• CRT Display Analog (DAC) Characteristics

• Display Miscellaneous Characteristics

• CRT, TFT/TV and MPEG Display Timing

Additionally, Figure 6-13 on page 249 is provided showing

a typical video connection diagram.

Table 6-14. CRT Display Recommended Operating Conditions

Symbol

Parameter

Min

Typ

Max

Units

Comments

AVDD

Power Supply connected to

AVDD1, AVDD2 and AVDD3

3.14

3.3

3.46

Output Load on each of the pins

IOUTR, IOUTG and IOUTB

37.5

Ohms

R1, R2, and R3 as shown in

Figure 6-13 on page 249

IOUT

Output Current on each of the

pins IOUTR, IOUTG and IOUTB

RSET

Value of the full-scale adjust

resistor connected to IREF

680

Ohms

This resistor should have a

1% tolerance.

VEXTREF

External voltage reference con-

nected to the EXTVREFIN pin

1.235

Table 6-15. CRT Display Analog (DAC) Characteristics

Symbol

Parameter

Min

Typ

Max

Units

Comments (Note 1)

VOM

Output Voltage

0.735

VOC

Output Current

INL

Integral Linearity Error

+/-1

LSB

DNL

Differential Linearity Error

+/-1

LSB

tFS

Full Scale Settling Time

2.5

DAC-to-DAC matching

Power Supply Rejection

0.7

@ 1 KHz

tRISE

Output Rise Time

3.8

Note 2 and Note 3

tFALL

Output Fall Time

3.8

Note 2 and Note 4

All tests, unless otherwise specified, are at VDD = 3.14V to 3.46V, TC = 0°C to 85°C, and CL = 50 pF.

Timing measurements are made with a 75 ohm doubly-terminated load, with VEXTREF = 1.235V and

RSET = 680 ohms.

10% to 90% of full-scale transition.

Full-scale transition: time from output minimum to maximum, not including clock and data feedthrough.

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