I2560B-08SR
| Model | I2560B-08SR |
| Description | Low Frequency EMI Reduction |
| PDF file | Total 7 pages (File size: 188K) |
| Chip Manufacturer | ALSC |
November 2003
rev 1.0
Pin Configuration
P2560B
P2560B
Standby Mode Selection
CLKIN
Disabled
Disabled
Enabled
Enabled
SSON/SBM
0
1
0
1
Spread Spectrum
N/A
N/A
Off
On
ModOUT
Disabled
Disabled
Reference
Normal
PLL
Disabled
Free
running
Disabled
Normal
Mode
Standby
Free running
Buffer out
Normal
Spread Range Selection, VDD = 3.3 V
CLKIN frequency
20 MHz
25 MHz
27 MHz
30 MHz
32 MHz
Pin Description
Pin# Pin Name
1
2
3
4
5
6
7
8
XIN/CLK
XOUT
DIV2
VSS
SR0
SSON#
MODOUT
VDD
Spreading range
±1.16%
±1.13%
±1.11%
±1.0%
±1.0%
(CLKIN/10) * 20.83 kHz
Modulation rate
Type
I
O
I
P
I
I
O
P
Description
Crystal connection or external reference frequency input. This pin has dual
functions. It can be connected to either an external crystal or an external
reference clock.
Crystal connection. If using an external reference, this pin must be left
unconnected.
Digital logic input used to select normal output mode or divide-by-2 output mode.
When this pin is HIGH, the frequency of the output clock is the same as the input
clock frequency. When it is tied LOW, the output frequency is half the input clock
frequency. This pin has an internal pull-up resistor.
Ground to entire chip.
Digital logic input used to select Spreading Range (Refer Spread Deviation
Table). This pin has an internal pull-up resistor.
Digital logic input used to enable Spread Spectrum function (Active LOW).
Spread Spectrum function enabled when LOW, disabled when HIGH. This pin
has an internal pull-low resistor.
Spread spectrum low EMI output.
Power supply for the entire chip (5V).
Low Frequency EMI Reduction
Notice: The information in this document is subject to change without notice.
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