MPC9819SD [IDT]
Processor Specific Clock Generator, 133.33MHz, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, SSOP-20;
| 型号： | MPC9819SD |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Processor Specific Clock Generator, 133.33MHz, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, SSOP-20 时钟 光电二极管 外围集成电路 晶体 |
| 文件： | 总10页 (文件大小：279K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Clock Generator for PowerQUICC and PowerPC MPC9819
Microprocessors and Microcontrollers
DATA SHEET
NRND
The MPC9819 is a PLL-based clock generator specifically designed for Freescale
Microprocessor and Microcontroller applications including the PowerPC and PowerQUICC.
This device generates the microprocessor input clock and other microprocessor system and
bus clocks at any one of four output frequencies. These frequencies include the popular 66-
and 133-MHz PCI/X bus frequencies. The device offers five low-skew clock outputs plus three
reference outputs. The clock input reference is 25 MHz and may be derived from an external
source or by the addition of a 25-MHz crystal to the on-chip crystal oscillator. The extended
temperature range of the MPC9819 supports telecommunication and networking requirements.
MICROPROCESSOR
CLOCK GENERATOR
Features
•
•
•
•
•
•
•
•
•
•
•
5 LVCMOS outputs for processor and other system circuitry
3 Buffered 25-MHz reference clock outputs
Crystal oscillator or external reference input
25-MHz input reference frequency
SD SUFFIX
20 SSOP PACKAGE
CASE 1461-02
Selectable output frequencies include: 66, 100, 125, or 133 MHz
Low cycle-to-cycle and period jitter
Package: 20-lead SSOP
3.3-V supply
Supports computing, networking, and telecommunications applications
Ambient temperature range: –40°C to +85°C
NOT RECOMMENDED FOR NEW DESIGNS
EN SUFFIX
20 SSOP PACKAGE
Pb-FREE PACKAGE
CASE 1461-02
Functional Description
The MPC9819 uses a PLL with a 25-MHz input reference frequency to generate a single
bank of five configurable LVCMOS output clocks. The output frequency of this bank is
configurable to either 66, 100, 125, or 133 MHz by two FSEL pins. The 25-MHz reference may
be either an external frequency source or a 25-MHz crystal. The 25-MHz crystal is directly connected to the XTAL_IN and XTAL_OUT pins with
no additional components required. An external reference may be applied to the XTAL_IN pin with the XTAL_OUT pin left floating. The input
reference, whether provided by a crystal or an external input, is also directly buffered to a second bank of three LVCMOS outputs. These outputs
may be used as the clock source for processor I/O applications such as an Ethernet PHY.
The MPC9819 is packaged in a 20-lead SSOP package.
MPC9819 REVISION 4 AUGUST 16, 2012
1
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
QA0
XTAL_IN
Ref
OSC
QA1
XTAL_OUT
PLL
400 or 500 MHz
66,100,125,133
MHz
QA2
QA3
FSEL0
FSEL1
QA4
Data
Generator
25 MHz
QREF0
QREF1
QREF2
MR/OE
Figure 1. MPC9819 Logic Diagram
Table 1. Pin Configurations
Pin
QA0, QA1, QA2, QA3, QA4
QREF0, QREF1, QREF2
XTAL_IN
I/O
Output
Output
Input
Output
Input
Input
—
Type
Function
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
—
Clock Outputs
Reference Output (25 MHz)
Crystal Oscillator Input Pin
Crystal Oscillator Output Pin
XTAL_OUT
FSEL0, FSEL1
MR/OE
Configures Bank A Clock Output Frequency (pull-up)
Enables All Outputs (pull-down)
3.3-V Supply
VDD
GND
—
—
Ground
Table 2. Function Table
Control
FSEL0, FSEL1
Default
00
66 MHz
01
10
11
11
125 MHz
100 MHz
133 MHz
MPC9819 REVISION 4 AUGUST 16, 2012
2
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
XTAL_IN
XTAL_OUT
FSEL0
VDD
1
20
19
18
17
16
15
14
13
12
11
VDD
2
QA4
QA3
GND
QA2
QA1
VDD
3
4
FSEL1
QREF2
GND
5
6
7
QREF1
QREF0
VDD
8
QA0
MR/OE
GND
9
10
Figure 2. MPC9819 20-Lead SSOP Package Pinout (Top View)
MPC9819 OPERATION
Crystal Oscillator
20 pF may be used, however, the reference frequency may be
higher than the specified 25 MHz. Externally supplied capacitors on
both the XTAL_IN and XTAL_OUT pins may be used to trim the
frequency as desired.
The crystal should be located as close to the MPC9819 XTAL_IN
and XTAL_OUT pins as possible to avoid any board level parasitic.
The MPC9819 features a fully integrated Pierce oscillator to
minimize system implementation costs. Other than the addition of a
25-MHz crystal, no external components are required.The crystal
selection should be: 25 MHz, parallel resonant type with a load
specification of CL = 10 pF. Crystals with a load specification of CL =
Table 3. Crystal Specifications
Parameter
Crystal Cut
Value
Fundamental AT Cut
Parallel Resonance
5–7 pF
Resonance
Shunt Capacitance (CO)
Load Capacitance (CL)
10 pF
Equivalent Series Resistance (ESR) 20–60
Power Supply Bypassing
External Clock Source
The MPC9819 should have all VDD pins bypassed with
0.01 capacitors and a minimum of one 1.0 capacitor for the overall
package. All capacitors should be located as close to the SSOP pins
as possible.
An external reference source of 25 MHz may be applied to the
XTAL_IN pin. In this mode of operation, the XTAL_OUT pin should
be left floating.
MPC9819 REVISION 4 AUGUST 16, 2012
3
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
Table 4. Absolute Maximum Ratings(1)
Symbol
VDD
IIN
Characteristics
Min
–0.3
—
Max
3.8
Unit
V
Condition
Supply Voltage
DC Input Current
DC Output Current
Storage Temperature
±20
±75
125
mA
mA
°C
IOUT
TS
—
–65
1. Absolute maximum continuous ratings are those maximum values beyond which damage to the device may occur. Exposure to these
conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation at absolute-maximum-rated
conditions is not implied.
Table 5. General Specifications
Symbol
VTT
MM
HBM
LU
Characteristics
Output Termination Voltage
Min
—
Typ
VDD ÷ 2
—
Max
—
Unit
V
Condition
ESD Protection (machine model)
ESD Protection (human body model)
Latch-Up Immunity
200
2000
200
—
—
V
—
—
V
—
—
mA
pF
pF
°C/W
°C
CIN
Input Capacitance
4
—
Inputs
Cpd
Power Dissipation Capacitance
Thermal Resistance (junction-to-ambient)
Ambient Temperature
—
8.5
—
JA
—
80.8
—
TC
–40
85
Table 6. DC Characteristics (VDD = 3.3 V ± 5%, TA = –40° to +85°C)
Symbol
VIH
Characteristics
Input High Voltage (XTAL_IN)
Min
2.4
2.0
—
Typ
—
Max
VDD + 0.3
VDD + 0.3
0.8
Unit
V
Condition
Input threshold = VDD/2
VIH
Input High Voltage
Input Low Voltage
Input Current(1)
—
V
VIL
—
V
LVCMOS
IIN
—
—
150
A
V
VIN = VDDL or GND
VOH
VOL
ZOUT
IDD
Output High Voltage
Output Low Voltage
Output Impedance
Maximum Supply Current
2.4
—
—
—
IOH = –12 mA
IOL = 12 mA
—
0.4
V
—
14
—
fA = 66 MHz
fA = 133 MHz
—
—
23
32
40
50
mA
25 MHz reference
frequency
IDDBASE Base Supply Current(2)
(for dynamic power dissipation calculation)
—
14
—
mA
1. Inputs have pull-down resistors affecting the input current.
2. PD = (VDD * IDDBASE) + 5 (VDD2) * Cpd * fA.
MPC9819 REVISION 4 AUGUST 16, 2012
4
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
Table 7. AC Characteristics(1) (2) (VDD = 3.3 V ± 5%, TA = –40° to +85°C)
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
Input and Output Timing Specification
fref
Input Reference Frequency
VCO Frequency Range
Output Frequency (QAx)
25 MHz Input
XTAL Input
25
25
MHz
MHz
fVCO
fMCX
FSEL0, FSEL1 = 00,01,11
FSEL0, FSEL1 = 10
400
500
MHz
MHz
FSEL0, FSEL1 = 00
FSEL0, FSEL1 = 10
FSEL0, FSEL1 = 01
FSEL0, FSEL1 = 11
66.66
100
125
133.33
25
—
—
—
—
—
MHz
MHz
MHz
MHz
MHz
PLL locked
Output Frequency (QREFx)
Reference Input Pulse Width
Output Duty Cycle
frefPW
DC
10
45
—
—
ns
%
@ 25 MHz
50
55
fout
Output Frequency Accuracy
Crystal(3)
External Reference
—
—
100
0
ppm
ppm
With recommended crystal
see Table 3
PLL Specifications
BW
PLL Closed Loop Bandwidth(4)
500
kHz
ms
tLOCK
Maximum PLL Lock Time
10
Skew and Jitter Specifications
tsk(O)
Output-to-Output Skew (within a bank)
75
ps
ps
tJIT(CC) Cycle-to-Cycle Jitter
150
@ 25 MHz Input Reference
Q
A output
@ 25 MHz Input Reference
A output
tJIT(PER) Period Jitter
100
1
ps
ns
Q
tr, tf
Output Rise/Fall Time
20% to 80%
1. AC characteristics are design targets and pending characterization.
2. AC characteristics apply for parallel output termination of 50 to VTT
.
3. Based upon recommended crystal specifications as outlined in operation section.
4. –3 dB point of PLL transfer characteristics.
Z = 50
Z = 50
Pulse
Generator
Z = 50
RT = 50
RT = 50
DUT MPC9819
VTT
VTT
Figure 3. MPC9819 AC Test Reference (LVCMOS Outputs)
MPC9819 REVISION 4 AUGUST 16, 2012
5
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
Table 8. MPC9819 Pin List
Pin
1
Description
XTAL_IN
Pin
11
12
13
14
Description
GND
2
XTAL_OUT
FSEL0
VDD
MR/OE
QA0
3
4
VDD
5
6
FSEL1
QREF2
GND
15
16
17
18
19
20
QA1
QA2
GND
QA3
QA4
VDD
7
8
QREF1
QREF0
VDD
9
10
MPC9819 REVISION 4 AUGUST 16, 2012
6
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
PACKAGE DIMENSIONS
PAGE 1 OF 3
CASE 1461-02
ISSUE A
20 SSOP PACKAGE
MPC9819 REVISION 4 AUGUST 16, 2012
7
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
PACKAGE DIMENSIONS
PAGE 2 OF 3
CASE 1461-02
ISSUE A
20 SSOP PACKAGE
MPC9819 REVISION 4 AUGUST 16, 2012
8
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
PACKAGE DIMENSIONS
PAGE 3 OF 3
CASE 1461-02
ISSUE A
20 SSOP PACKAGE
MPC9819 REVISION 4 AUGUST 16, 2012
9
©2009 Integrated Device Technology, Inc.
MPC9819 Data Sheet
CLOCK GENERATOR FOR POWERQUICC AND POWERPC MICROPROCESSORS AND MICROCONTROLLERS
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including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not
guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the
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Copyright 2009. All rights reserved.
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