Intel D2500 DF8064101055400 数据表

Datasheet - Volume 1 of 2

23

DDR3_REFP
DDR3_REFN

Differential DDR3 I/O Clock In

I

Diff Clk 

CMOS

HPLL_REFCLK_N
HPLL_REFCLK_P

Differential Host Clock In

I

Diff Clk 

CMOS

DMI_REFCLKP
DMI_REFCLKN

Differential DMI Clock In

I

Diff Clk 

CMOS

DPL_REFCLKN
DPL_REFCLKP

Differential PLL Clock In. 27 MHz XTAL required 

to reduce error to <1000 ppm

I

Diff Clk 

CMOS

DPL_REFSSCLKN
DPL_REFSSCLKP

Differential Spread Spectrum Clock In

I

Diff Clk 

CMOS

CRT_RED

RED Analog Video Output: this signal is a CRT analog video signal 

output from the internal color palette DAC. The DAC is designed to 

drive a double terminated 75 Ohm DC resistance without the need 

for external buffering. A dual 150 Ohm termination scheme is 

implemented on the board for optimal signal integrity: one 150 

Ohm termination to ground placed in close proximity to the chip and 

one 150 Ohm termination resistor to ground placed in close 

proximity to the VGA connector. The equivalent DC resistance of the 

two 150 Ohm termination resistors with the 75 Ohm termination 

within the CRT display is 37.5 Ohms (DC).

O

Analog

CRT_GREEN

GREEN Analog Video Output: this signal is a CRT analog video signal 

output from the internal color palette DAC. The DAC is designed to 

drive a double terminated 75 Ohm DC resistance without the need 

for external buffering. A dual 150 Ohm termination scheme is 

implemented on the board for optimal signal integrity: one 150 

Ohm termination to ground placed in close proximity to the chip and 

one 150 Ohm termination resistor to ground placed in close 

proximity to the VGA connector. The equivalent DC resistance of the 

two 150 Ohm termination resistors with the 75 Ohm termination 

within the CRT display is 37.5 Ohms (DC).

O

Analog

CRT_BLUE

BLUE Analog Video Output: this signal is a CRT analog video signal 

output from the internal color palette DAC. The DAC is designed to 

drive a double terminated 75 Ohm DC resistance without the need 

for external buffering. A dual 150 Ohm termination scheme is 

implemented on the board for optimal signal integrity: one 150 

Ohm termination to ground placed in close proximity to the chip and 

one 150 Ohm termination resistor to ground placed in close 

proximity to the VGA connector. The equivalent DC resistance of the 

two 150 Ohm termination resistors with the 75 Ohm termination 

within the CRT display is 37.5 Ohms (DC).

O

Analog