P2811 ALSC [Alliance Semiconductor Corporation], P2811 Datasheet - Page 2

• Manufacturer Part Number: P2811
• Description: Low-Power EMI Reduction IC
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

October 2003
rev
Pin Configuration
Pin Description
Pin#
Input/Output Frequency Range Selections
1
2
3
4
5
6
7
8
Pin 6
FRS
0
1
Pin Name
ModOut
XOUT
VDD
VSS
D_C
SRS
FRS
XIN
(MHz)
10-20
20-40
Input
P2811 (1X)
Type
P
O
P
I
I
I
I
I
Notice: The information in this document is subject to change without notice.
Connect to externally generated clock signal or crystal.
Ground Connection. Connect to system ground.
Digital logic input used to select Down (LOW) or Center (HIGH) Spread
Options (see Output Frequency Deviation and Spread Option Selections).
This pin has an internal pull-up resistor.
Spread Range Selection. Digital logic input used to select frequency
deviation (see Output Frequency Deviation and Spread Option Selections).
This pin has an internal pull-up resistor.
Spread Spectrum clock output (see Input/Output Frequency Range
Selections and Output Frequency Deviation and Spread Option Selections).
Frequency Range Selection. Digital logic input used to select input fre-
quency range (see Input/Output Frequency Range Selections). This pin has
an internal pull-up resistor.
Connect to +3.3 V
Connect to crystal. No connect if externally generated clock signal is used.
Output
(MHz)
10-20
20-40
Low Power EMI Reduction IC
(MHz)
10-20
20-40
Input
Part number
P2812 (2X)
Output
(MHz)
20-40
40-80
Description
(MHz)
10-20
20-40
Input
P2814 (4X)
Output
80-160
(MHz)
40-80
P2811/12/14
2 of 8
Input frequency
Input frequency
Modulation
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rate