asm3p2812ag-08tt PulseCore Semiconductor, asm3p2812ag-08tt Datasheet - Page 2

• Manufacturer Part Number: asm3p2812ag-08tt
• Description: Low Power Emi Reduction Ic
• Manufacturer: PulseCore Semiconductor

XIN /CLKIN
April 2008
rev 1.6
Block Diagram
Pin Configuration
Pin Description
XOUT
Pin#
1
2
3
4
5
6
7
8
XIN / CLKIN
Pin Name
Oscillator
ModOUT
Crystal
XOUT
VDD
VSS
D_C
SRS
FRS
Type
O
O
P
P
XIN / CLKIN
I
I
I
I
Notice: The information in this document is subject to change without notice.
Frequency
Feedback
Divider
Divide
VSS
D_C
SRS
Crystal connection or external Clock input.
Ground to entire chip.
Digital logic input used to select Down (LOW) or Center (HIGH) spread options.
(Refer Frequency Deviation and Spread Selection Table).
This pin has an internal pull-up resistor.
Spread range select. Digital logic input used to select frequency deviation
(Refer Frequency Deviation and Spread Selection Table).
This pin has an internal pull-up resistor.
Spread spectrum clock output
Frequency range select. Digital logic input used to select Input frequency range
(Refer Input/Output Frequency Range Selection Table).
This pin has an internal pull-up resistor.
Power supply for the entire chip.
Crystal connection. If using an external reference, this pin must be left
unconnected.
Low Power EMI Reduction IC
1
3
4
2
D_C SRS FRS
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
Modulation
Detector
Phase
8
7
6
5
ModOUT
FRS
XOUT
VDD
Loop
Filter
Description
VDD
VSS
VCO
PLL
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
Divider
Output
2 of 11
ModOUT