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P1P40167 Datasheet

4-PLL Low Power Clock Generator

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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 highend 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
16pin QFN Package
Operating Temperature Range: 10°C to +80°C
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Portable Gaming
Audio/Video Multimedia
27 MHz clock or
Crystal Input
SCLK
SDATA
VDD
3
VDDO
2
Crystal
Oscillator
I2C
Control
Logic
PLL1
(SSC)
PLL2
27M
37M
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 = PbFree 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
2
VSS
Figure 1. Block Diagram
22M
© Semiconductor Components Industries, LLC, 2012
August, 2012 Rev. 1
1
Publication Order Number:
P1P40167/D


  ON Semiconductor Electronic Components Datasheet  

P1P40167 Datasheet

4-PLL Low Power Clock Generator

No Preview Available !

P1P40167
VDD 1
VDD 2
48M 3
VDD 4
16 15 14 13
Exposed Pad (EP)
P1P40167
12 VDDO
11 37M
10 VDDO
9 VSS
5678
Figure 2. Pin Configuration (Top View)
Table 1. PIN DESCRIPTION
Pin#
Pin Name
Type
1
VDD
Power
2
VDD
Power
3 48M Output
Description
1.8 V power supply for Core
1.8 V power supply for Core
48 MHz clock output. Has internal pull down resistor.
4
VDD
Power 1.8 V power supply for Core
5 22M Output 22.5792 MHz clock output. Has internal pull down resistor.
6
SCLK
Input
I2C bus Clock input, internal pullup resistor
7
SDATA
Input /
I2C bus Data pin, Internal pullup resistor
Output
8
22/24M
Output 24.576 MHz or 22.5792 MHz clock output. Has internal pull down resistor.
9
VSS
Power 0 V device ground
10 VDDO Power 1.8 V power supply for Output Clocks
11 37M Output 37 MHz clock output. Has internal pull down resistor.
12 VDDO Power 1.8 V power supply for Output Clocks
13 VSS Power 0 V device ground
14 27M Output Buffered 27 MHz reference clock output. Has internal pull down resistor.
15 XOUT Output Crystal connection. If using an external reference, this pin must be left unconnected.
16 XIN
Input
Crystal connection. Connect to 27 MHz crystal or External clock input
EP
The Exposed Pad (EP) on the QFN16 package bottom is thermally connected to the die for
improved heat transfer out of package. The pad is electrically connected to the die, and can
be electrically and thermally connected to device ground on the PC board.
http://onsemi.com
2


Part Number P1P40167
Description 4-PLL Low Power Clock Generator
Maker ON Semiconductor
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