參數(shù)資料
型號(hào): CS1311
文件頁數(shù): 21/25頁
文件大?。?/td> 542K
代理商: CS1311
Revision 2.2
21
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G
Signal Definitions
(Continued)
2.2.12 Power, Ground, and No Connections
Signal Name
Ball
No.
Type
Description
V
DDQ
K20
PWR
Quiet V
DD
for the PLL Subsystem.
Should be supplied from V
DD
through a low-Q series inductor. It should be bypassed for AC to V
SSQ
,
using a dual capacitor bypass (high and low frequency AC bypass).
V
SSQ
L19
GND
Quiet V
SS
for the PLL Subsystem.
Should be AC bypassed to V
DDQ
,
otherwise left DC floating. It is connected on-chip to V
SS
. No external
coil or other connection to board ground is needed; such a connection
would create a ground loop.
V
DD
See Table
2-3 on
page 12
PWR
2.5V CS1301 Core Power Connection (Total of 24).
2.2V CS1311 Core Power Connection (Total of 24).
V
CC
See Table
2-3 on
page 12
PWR
3.3V I/O Power Connection (Total of 24).
V
SS
See Table
2-3 on
page 12
GND
Ground Connection (Total of 50).
NC
A9, A10,
A11, B9,
B10, B11,
E19, D19
---
No Connection.
For normal operation, leave unconnected.
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