ASM3I2111BF-08SR PULSECORE [PulseCore Semiconductor], ASM3I2111BF-08SR Datasheet

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ASM3I2111BF-08SR

Manufacturer Part Number
ASM3I2111BF-08SR
Description
Peak EMI Reducing Solution
Manufacturer
PULSECORE [PulseCore Semiconductor]
Datasheet
February 2007
rev 0.2
Features
Product Description
The ASM3P2111B is a versatile spread spectrum
frequency
interference (EMI) at the clock source. The ASM3P2111B
Block Diagram
1715 S. Bascom Ave Suite 200, Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018
XIN /CLKIN
Generates an EMI optimized clock at the output.
Input frequency: 25MHz.
Frequency outputs:
Modulation rate: 30KHz.
Supply voltage range: 3.3V ± 0.3V.
Available in 8-pin SOIC Package.
Commercial and Industrial Temperature range.
RoHS Compliant
• 60MHz (unmodulated)
• 2 x 48MHz (unmodulated)
• 66.6MHz (modulated): -1.7% down spread
modulator
XOUT
that
Notice: The information in this document is subject to change without notice.
reduces
Oscillator
48 MHz_1
Crystal
PulseCore Semiconductor Corporation
electromagnetic
Peak EMI Reducing Solution
www.pulsecoresemi.com
V
V
SS
DD
allows significant system cost savings by reducing the
number of circuit board layers and shielding that are
required to pass EMI regulations. The ASM3P2111B
modulates the output of PLL in order to spread the
bandwidth of a synthesized clock, thereby decreasing the
peak amplitudes of its harmonics. This results in
significantly lower system EMI compared to the typical
narrow band signal produced by oscillators and most
clock generators. Lowering EMI by increasing a signal’s
bandwidth is called spread spectrum clock generation.
Applications
ASM3P2111B is targeted towards EMI management for
high speed digital applications such as PC peripheral
devices, consumer electronics and embedded controller
systems.
PLL1
PLL2
ASM3P2111B
66.6 MHz
Modulated
48 MHz_2
60 MHz
48 MHz_1

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ASM3I2111BF-08SR Summary of contents

Page 1

February 2007 rev 0.2 Features • Generates an EMI optimized clock at the output. • Input frequency: 25MHz. • Frequency outputs: • 60MHz (unmodulated) • 48MHz (unmodulated) • 66.6MHz (modulated): -1.7% down spread • Modulation rate: 30KHz. • ...

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February 2007 rev 0.2 Pin Configuration XIN/ CLKIN Pin Description Pin # Pin Name Type 1 XIN / CLKIN I 2 XOUT 60MHz O 5 48MHz_2 O 6 48MHz_1 O 7 66.6MHz O 8 ...

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February 2007 rev 0.2 Absolute Maximum Ratings Symbol Voltage on any pin with respect to Ground Storage temperature STG T Operating temperature A T Max. Soldering Temperature (10 sec Junction Temperature J ...

Page 4

February 2007 rev 0.2 DC Electrical Characteristics Parameter Symbol Overall Supply Current Dynamic Supply Current, I DDL Static All input pins High-Level Input V IH Voltage Low-Level Input V IL Voltage High-Level Input I IH Current Low-Level Input ...

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February 2007 rev 0.2 Typical Crystal Oscillator Circuit Typical Crystal Specifications Fundamental AT cut parallel resonant crystal Nominal frequency Frequency tolerance Operating temperature range Storage temperature Load capacitance Shunt capacitance ESR Notice: The information in this document is subject to ...

Page 6

February 2007 rev 0.2 Package Information Symbol θ Notice: The information in this document is subject to change without notice. 8-lead (150-mil) SOIC Package ...

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... February 2007 rev 0.2 Ordering Codes Part number Marking ASM3P2111BF-08ST 3P2111BF ASM3P2111BF-08SR 3P2111BF ASM3I2111BF-08ST 3I2111BF ASM3I2111BF-08SR 3I2111BF ASM3P2111BG-08ST 3P2111BG ASM3P2111BG-08SR 3P2111BG ASM3I2111BG-08ST 3I2111BG ASM3I2111BG-08SR 3I2111BG Ordering Information Licensed under US patent #5,488,627, #6,646,463 and #5,631,920. Notice: The information in this document is subject to change without notice. ...

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February 2007 rev 0.2 PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003 © Copyright ...

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