AC207-DS00-R datasheet(26/60 Pages) BOARDCOM

26 / 60 page

AC207

Preliminary Data Sheet

07/08/02

B roa dcom

Page 16 Pin Descriptions

Document

AC207-DS04-405-R

Table 11: Clock and Reset

Pin Name

Pin #

Type

Description

RESET*

I,U

Reset to initial and defaulted state.

CLK

25-MHz-system-clock reference input. This pin shall be connected to an exter-

nal 25-MHz-clock source. Multiple devices should be synchronous to the same

external clock source.

Table 12: Power and Ground

Pin Name

Pin #

Type

Description

DVCC

115, 126, 10, 23, 39, 46

2.5V power for digital circuit, total of 9 pins.

DGND

114, 116, 117, 5, 15, 32, 45, 49

Ground for digital circuit, total 10 pins.

AVCC

108, 109, 110, 57, 58, 59

2.5V power for analog circuit, total 16 pins.

AGND

105, 62, 65, 66, 69, 74, 77, 78,

81, 86, 89, 90, 93, 98, 101, 102

Ground for analog circuit, total 16 pins

GAVDD

113

2.5V power supply for common analog circuit

GAGND

111, 56

Ground for common analog circuit

Table 13: No Connects

Pin Name

Pin #

Type

Description

N/C

1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13,

14, 16, 17, 18, 19, 20, 21, 22, 24,

25, 26, 27

N/C

No Connects

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