P1P40167 Datasheet, PDF (1/8 Pages) ON Semiconductor – Low Power Clock Generator with Spread Spectrum

P1P40167
1.8V, 4-PLL Low Power
Clock Generator with
Spread Spectrum
Functional Description
The P1P40167 is a high precision frequency synthesizer designed to
operate with a 27 MHz fundamental mode crystal. Device has 4 PLL’s
with four LVCMOS outputs and a reference clock. The frequencies
generated are 22.5792 MHz, 24.576 MHz, 48 MHz and 37 MHz as
well as a 27 MHz copy of the reference clock. Device offers flexible
spread spectrum options configurable through I²C bus. All output
clocks are generated with high precision, zero PPM frequency
conversion, thus making it suitable for high−end multimedia and
consumer applications. I²C is included to support various system
configuration options.
Features
• Low Power Architecture to Support Portable Applications
• Integrated Loop Filter
• Input: 27 MHz Crystal or External Input
• Outputs:
♦ 27 MHz Reference Output
♦ Fixed Output Frequencies of 48 MHz and 22.5792 MHz
♦ Configurable Spread Spectrum for 37 MHz Output
♦ Selectable Audio Clock Frequency of Either 22.5792 MHz or
24.576 MHz
• LVCMOS Input and Outputs
• Supply Voltage: 1.8 V
• 16−pin QFN Package
• Operating Temperature Range: −10°C to +80°C
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Portable Gaming
• Audio/Video Multimedia
VDD
3
VDDO
2
27 MHz clock or
Crystal Input
Crystal
Oscillator
27M
PLL1
(SSC)
37M
SCLK
I²C
Control
PLL2
SDATA
Logic
48M
http://onsemi.com
MARKING
DIAGRAM
QFN16
CASE 485G
P1P
40167
ALYWG
G
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
PLL3
22/24M
PLL4
22M
2
VSS
Figure 1. Block Diagram
© Semiconductor Components Industries, LLC, 2012
1
August, 2012 − Rev. 1
Publication Order Number:
P1P40167/D