XC9855VF [NXP]
500MHz, PROC SPECIFIC CLOCK GENERATOR, PBGA100, MAPBGA-100;![XC9855VF](http://pdffile.icpdf.com/pdf2/p00309/img/icpdf/XC9855VM_1860986_icpdf.jpg)
型号: | XC9855VF |
厂家: | ![]() |
描述: | 500MHz, PROC SPECIFIC CLOCK GENERATOR, PBGA100, MAPBGA-100 时钟 外围集成电路 晶体 |
文件: | 总12页 (文件大小:166K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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Freescale Semiconductor, Inc.
MOTOROLA
Order number: XC9855
Rev 0, 07/2004
SEMICONDUCTOR TECHNICAL DATA
Clock Generator for PowerQUICC
and PowerPC Microprocessors
XC9855
The MPC9855 is a PLL based clock generator specifically designed for
Motorola Microprocessor and Microcontroller applications including the
PowerPC and PowerQUICC. This device generates a microprocessor input
clock. The microprocessor clock is selectable in output frequency to any of the
commonly used microprocessor input and bus frequencies. The device offers
eight low skew clock outputs in two banks, each configurable to support
different clock frequencies. The extended temperature range of the MPC9855
supports telecommunication and networking requirements.
MICROPROCESSOR
CLOCK GENERATOR
Features
•
•
•
•
8 LVCMOS outputs for processor and other circuitry
Crystal oscillator or external reference input
25 or 33 MHz Input reference frequency
Selectable output frequencies include = 200, 166, 133,125, 111, 100, 83,
66, 50, 33, or 16 MHz
VF SUFFIX
•
•
•
•
•
•
•
Buffered reference clock output (2 copies)
Low cycle-to-cycle and period jitter
VM SUFFIX (Pb-FREE)
100 MAPBGA PACKAGE
CASE 1462-01
100-lead PBGA package
100-lead Pb-free Package Available
3.3 V supply with 3.3 V or 2.5 V LVCMOS output supplies
Supports computing, networking, telecommunications applications
Ambient temperature range –40°C to +85°C
Functional Description
The MPC9855 uses either a 25 or 33 MHz reference frequency to generate 8 LVCMOS output clocks, of which, the frequency is
selectable from 16 MHz to 200 MHz. The reference is applied to the input of a PLL and multiplied to 2 GHz. Output dividers, divide
this frequency by 10, 12, 15, 16, 18, 20, 24, 30, 40, 60, or 120 to produce output frequencies of 200, 166, 133, 125, 111, 100, 83, 66,
50, 33, or 16 MHz. The single-ended LVCMOS outputs provide 8 low skew outputs for use in driving a microprocessor or
microcontroller clock input as well as other system components. The input reference, either crystal or external input is also buffered
to a separate dual outputs that my be used as the clock source for a Ethernet PHY if desired.
The reference clock may be provided by either an external clock input of 25 or 33 MHz. An internal oscillator requiring a 25 MHz
crystal for frequency control may also be used. The external clock source my be applied to either of two clock inputs and selected via
the CLK_SEL control input. Both single ended LVCMOS and differential LVPECL inputs are available. The crystal oscillator or external
clock input is selected via the input pin of XTAL_SEL. Other than the crystal, no external components are required for crystal oscillator
operation. The REF_33 MHz configuration pin is used to select between a 33 and 25 MHz input frequency.
The MPC9855 is packaged in a 100 lead MAPBGA package to optimize both performance and board density.
For More Information On This Product,
© Motorola, Inc. 2004
Go to: www.freescale.com
Freescale Semiconductor, Inc.
XC9855
CLK
0
1
1
0
PCLK
PCLK
÷N
QA0
QA1
Ref
0
1
CLK_SEL
PLL
XTAL_IN
XTAL_OUT
XTAL_SEL
2000 MHz
QA2
QA3
OSC
÷N
QB0
QB1
PLL_BYPASS
REF_33 MHz
QB2
QB3
CLK_A[0:5]
CLK_B[0:5]
REF_OUT0
REF_OUT1
MR
REF_OUT1_E
Figure 1. XC9855 Logic Diagram
TIMING SOLUTIONS
MOTOROLA
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Go to: www.freescale.com
Freescale Semiconductor, Inc.
XC9855
Table 1. Pin Configurations
Pin
I/O
Type
Function
Supply
Active/State
CLK
Input
LVCMOS PLL Reference Clock Input (pull-down)
VDD
PCLK, PCLK
Input
LVPECL PLL reference clock input
V
—
—
DD
(PCLK — pull-down, PCLK — pull-up and pull-down)
QA0, QA1,
QA2, QA3
QB0, QB1,
QB2, QB3
Output LVCMOS Clock Outputs
V
DDOA
REF_OUT0
REF_OUT1
Output LVCMOS Reference Output (25 MHz or 33 MHz)
V
—
DD
XTAL_IN
Input
LVCMOS Crystal Oscillator Input Pin
V
V
V
V
—
—
DD
DD
DD
DD
XTAL_OUT
CLK_SEL
XTAL_SEL
Output LVCMOS Crystal Oscillator Output Pin
Input
Input
LVCMOS Select between CLK and PCLK input (pull-down)
High
High
LVCMOS Select between External Input and Crystal Oscillator Input
(pull-down)
REF_33 MHz
REF_OUT1_E
MR
Input
Input
Input
Input
Input
Input
—
LVCMOS Selects 33MHz input (pull-down)
V
V
V
V
V
V
High
High
Low
High
—
DD
DD
DD
DD
DD
DD
LVCMOS Enables REF_OUT! output (pull-down)
LVCMOS Master Reset (pull-up)
PLL_BYPASS
LVCMOS Select PLL or static test mode (pull-up)
LVCMOS Configures Bank A clock output frequency (pull-up)
LVCMOS Configures Bank B clock output frequency (pull-up)
CLK_A[0:5]1
CLK_B[0:5]2
—
V
—
—
—
—
—
3.3 V Supply
—
—
—
—
—
—
DD
V
V
V
—
Analog Supply
—
DDA
—
Output Supply — Bank A
Output Supply — Bank B
Ground
—
DDOA
DDOB
—
—
GND
—
—
1. PowerPC bit ordering (bit 0 = msb, bit 5 = lsb).
2. PowerPC bit ordering (bit 0 = msb, bit 5 = lsb)
Table 2. Function Table
Control
CLK_SEL
Default
0
1
0
0
0
0
0
1
CLK
CLKx
PCLK
XTAL
XTAL_SEL
PLL_BYPASS
REF_OUT1_E
REF_33 MHz
MR
Normal
Bypass
Disables REF_OUT1
Selects 25 MHz Reference
Reset
Enables REF_OUT1
Selects 33 MHz Reference
Normal
CLK_A and CLK_B control output frequencies. See Table 3 for specific device configuration
MOTOROLA
TIMING SOLUTIONS
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Freescale Semiconductor, Inc.
XC9855
Table 3. Output Configurations (Banks A & B)
CLK_x[0]
(msb)
CLK_x[5]
(lsb)
Frequency
(MHz)
CLK_x[0:5]1
CLK_x[1]
CLK_x[2]
CLK_x[3]
CLK_x[4]
N
111111
111100
101000
011110
010100
001111
001100
001010
001001
001000
000111
000110
000101
000100
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
1
1
1
1
0
0
0
0
1
1
0
1
1
1
1
0
0
0
1
1
1
1
1
0
0
1
0
1
0
1
0
0
1
1
0
0
1
0
0
0
0
1
0
0
1
0
1
0
1
0
126
120
80
60
40
30
24
20
18
16
15
12
10
15.87
16.67
25.00
33.33
50.00
66.67
83.33
100.00
111.11
125.00
133.33
166.67
200.00
250
82
1. PowerPC bit ordering (bit 0 = msb, bit 5 = lsb)
2. Minimum value for N
TIMING SOLUTIONS
MOTOROLA
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Freescale Semiconductor, Inc.
XC9855
OPERATION INFORMATION
Output Frequency Configuration
CLK_x[0:5]. To achieve N = 15 CLK_x[0:5] is configured to
00111 or 7.
The XC9855 was designed to provide the commonly used
frequencies in PowerQUICC, PowerPC and other
Crystal Input Operation
microprocessor systems. Table 3 lists the configuration values
that will generate those common frequencies. The XC9855 can
generate numerous other frequencies that may be useful in
specific applications. The output frequency (fout) of either Bank
A or Bank B may be calculated by the following equation.
TBD
Power-Up and MR Operation
Figure 2 defines the release time and the minimum pulse
length for MR pin. The MR release time is based upon the
power supply being stable and within VDD specifications. See
Table 9 for actual parameter values. The XC9855 may be
configured after release of reset and the outputs will be stable
for use after lock indication is obtained.
fout = 2000 / N
where fout is in MHz and N = 2 * CLK_x[0:5]
This calculation is valid for all values of N from 8 to 126. Note
that N = 15 is a modified case of the configuration inputs
VDD
MR
treset_rel
treset_pulse
Figure 2. MR Operation
Power Supply Bypassing
The XC9855 is a mixed analog/digital product. The
architecture of the XC9855 supports low noise signal operation
at high frequencies. In order to maintain its superior signal
quality, all VDD pins should be bypassed by high-frequency
ceramic capacitors connected to GND. If the spectral
frequencies of the internally generated switching noise on the
supply pins cross the series resonant point of an individual
bypass capacitor, its overall impedance begins to look inductive
and thus increases with increasing frequency. The parallel
capacitor combination shown ensures that a low impedance
path to ground exists for frequencies well above the noise
bandwidth.
VDD
VDD
22 µF
15 Ω
0.1 µF
0.1 µF
XC9855
VDDA
Figure 3. VCC Power Supply Bypass
MOTOROLA
TIMING SOLUTIONS
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Freescale Semiconductor, Inc.
XC9855
Table 4. Absolute Maximum Ratings1
Symbol
Characteristics
Min
Max
Unit
Condition
VDD
Supply Voltage (core)
–0.3
3.8
V
VDDA
VDDOx
VIN
Supply Voltage (Analog Supply Voltage)
Supply Voltage (LVCMOS output for Bank A and B)
DC Input Voltage
–0.3
–0.3
–0.3
–0.3
VDD
VDD
V
V
VDD+0.3
VDDx+0.3
±20
V
DC Output Voltage2
DC Input Current
VOUT
IIN
IOUT
TS
V
mA
mA
°C
DC Output Current
±50
Storage Temperature
–65
125
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.
2. VDDx references power supply pin associated with specific output pin.
Table 5. General Specifications
Symbol
Characteristics
Output Termination Voltage
Min
Typ
Max
Unit
Condition
VTT
V
VDD ÷ 2
MM
HBM
CDM
LU
ESD Protection (Machine Model)
ESD Protection (Human Body Model)
ESD Protection (Charged Device Model)
Latch-Up Immunity
125
2000
500
V
V
V
100
mA
pF
CIN
Input Capacitance
4
Inputs
Per Output
CPD
θJA
TA
Power Dissipation Capacitance
10
pF
Thermal Resistance (junction-to-ambient)
54.5
°C/W Air flow = 0
°C
–40
85
Ambient Temperature
Table 6. DC Characteristics (TA = –40°C to 85°C)
Symbol
Supply Current for VDD = 3.3 V ± 5%, VDDOA = 3.3 V ± 5 and VDDOB = 3.3 V ± 5%
DD + IDDA Maximum Quiescent Supply Current (Core)
Characteristics
Min
Typ
Max
Unit
Condition
I
200
mA
VDD + VDDA
pins
IDDA
Maximum Quiescent Supply Current (Analog Supply)
Maximum Bank A and B Supply Current
15
mA
mA
VDDIN pins
IDDOA
,
175
VDDOA and
VDDOB pins
IDDOB
Supply Current for VDD = 3.3 V ± 5%, VDDOA = 2.5 V ± 5% and VDDOB= 2.5 V ± 5%
DD + IDDA Maximum Quiescent Supply Current (Core)
I
200
mA
VDD + VDDA
pins
IDDA
Maximum Quiescent Supply Current (Analog Supply)
Maximum Bank A and B Supply Current
15
mA
mA
VDDIN pins
IDDOA
,
100
VDDOA and
IDDOB
V
DDOB pins
TIMING SOLUTIONS
MOTOROLA
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Freescale Semiconductor, Inc.
XC9855
Table 7. LVPECL DC Characteristics (TA = –40°C to 85°C)1
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
Differential LVPECL Clock Inputs (CLK1, CLK1) for VDD = 3.3 V ± 0.5%
Differential Voltage2 (peak-to-peak)
Differential Input Crosspoint Voltage3
(LVPECL)
(LVPECL)
VPP
250
1.0
mV
V
VCMR
VDD – 0.6
1. AC characteristics are design targets and pending characterization.
2. VPP is the minimum differential input voltage swing required to maintain AC characteristics including tPD and device-to-device skew.
3. VCMR (AC) is the crosspoint of the differential input signal. Normal AC operation is obtained when the crosspoint is within the VCMR (AC) range
and the input swing lies within the VPP (AC) specification. Violation of VCMR (AC) or VPP (AC) impacts the device propagation delay, device and
part-to-part skew.
Table 8. LVCMOS I/O DC Characteristics (TA = –40°C to 85°C)
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
LVCMOS for VDD = 3.3 V ± 5%
VIH
VIL
IIN
Input High Voltage
Input Low Voltage
2.0
VDD + 0.3
0.8
V
V
LVCMOS
LVCMOS
Input Current1
± 200
µA
VIN = VDDL or GND
LVCMOS for VDD = 3.3 V ± 5%, VDDOA = 3.3 V ± 5 and VDDOB = 3.3 V ± 5%
VOH
VOL
Output High Voltage
Output Low Voltage
Output Impedance
2.4
V
V
Ω
IOH = –24 mA
IOL = 24 mA
0.5
0.4
ZOUT
14 – 17
18 – 22
LVCMOS for VDD= 3.3 V ± 5%, VDDOA = 2.5 V ± 5% and VDDOB= 2.5 V ± 5%
VOH
VOL
Output High Voltage
Output Low Voltage
Output Impedance
1.9
V
V
Ω
IOH = –15 mA
IOL = 15 mA
ZOUT
1. Inputs have pull-down resistors affecting the input current.
MOTOROLA
TIMING SOLUTIONS
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Freescale Semiconductor, Inc.
XC9855
Table 9. AC Characteristics (VDD = 3.3 V ± 5%, VDDOAB = 3.3 V ± 5%, TA= –40°C to +85°C)1 2
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
Input and Output Timing Specification
fref
Input Reference Frequency (25 MHz input)
Input Reference Frequency (33 MHz input)
XTAL Input
Input Reference Frequency in PLL Bypass Mode3
25
33
25
MHz
MHz
MHz
MHz
250
PLL bypass
VCO Frequency Range4
fVCO
fMCX
2000
MHz
Output Frequency
Bank A output
Bank B output
Bank C output
15.87
15.87
50
200
200
500
MHz
MHz
MHz
PLL locked
frefPW
frefCcc
tr, tf
Reference Input Pulse Width
Input Frequency Accuracy
Output Rise/Fall Time
Output Duty Cycle
2
ns
ppm
ns
100
500
150
20% to 80%
DC
43
47
50
50
57
53
%
Bank A and B
Bank C
PLL Specifications
tLOCK
treset_ref
treset_pulse
Maximum PLL Lock Time
10
ms
ns
ns
MR Hold Time on Power Up
MR Hold Time
10
10
Skew and Jitter Specifications
tsk(O) Output-to-Output Skew (within a bank)
tsk(O) Output-to-Output Skew (across banks A and B)
50
ps
ps
400
VDDOA = 3.3 V
VDDOB = 3.3 V
tJIT(CC)
Cycle-to-Cycle Jitter
200
150
ps
ps
Bank A and B
Bank C
tJIT(PER)
tJIT(∅)
tr, tf
Period Jitter
200
50
ps
ps
ns
Bank A and C
Bank A and C
20% to 80%
I/O Phase Jitter
Output Rise/Fall Time
RMS (1 σ)
TBD
1. AC characteristics are design targets and pending characterization.
2. AC characteristics apply for parallel output termination of 50Ω to VTT
3. In bypass mode, the XC9855 divides the input reference clock.
.
4. The input reference frequency must match the VCO lock range divided by the total feedback divider ratio: fref = (fVCO ÷ M) ⋅ N.
ZO = 50Ω
ZO = 50Ω
Pulse
Generator
Z = 50Ω
DUT XC9855
RT = 50Ω
VTT
RT = 50Ω
VTT
Figure 4. XC9855 AC Test Reference (LVCMOS Outputs)
TIMING SOLUTIONS
MOTOROLA
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Freescale Semiconductor, Inc.
XC9855
Table 10. XC9855 Pin Diagram (Top View)
1
2
3
4
5
6
7
8
9
VDDOA
VDDOA
VDD
10
VDDOA
VDDOA
VDDOA
RSVD
VDDOA
VDDOA
RSVD
CLKA[1]
CLKA[0]
VDD
CLKA[3]
CLKA[2]
VDD
CLKA[5]
CLKA[4]
VDD
VDD
QA0
VDD
GND
GND
GND
GND
VDD
QB0
QA1
QA2
QA3
VDD
VDD
VDD
VDD
VDD
VDD
QB3
A
B
C
D
E
F
VDDOA
VDD
VDDOA
REF_OUT[0]
REF_OUT[1]
GND
VDDA
VDDA
VDD
GND
GND
GND
GND
GND
GND
VDD
RSVD
VDD
XTAL_SEL
PCLK
CLK
VDD
GND
GND
PCLK
VDD
GND
GND
RSVD
PLL_BYPASS
RSVD
VDDOB
RSVD
CLK_SEL
XTAL_IN
VDDOB
REF_33MHz
XTAL_OUT
VDDOB
VDD
GND
GND
MR
G
H
J
VDD
VDD
VDD
REF_OUT1E
VDDOB
CLKB[0]
CLKB[2]
CLKB[4]
VDDOB
Table 11. MPC9855 Pin List
100 Pin
100 Pin
MAPBGA
100 Pin
MAPBGA
100 Pin
MAPBGA
100 Pin
MAPBGA
Signal
Signal
Signal
Signal
Signal
MAPBGA
VDDOA
VDDOA
CLKA[1]
CLKA[3]
CLKA[5]
VDD
A1
RSVD
RSVD
VDD
C1
XTAL_SEL
CLK
E1
CLK_SEL
REF_33MHz
VDD
G1
VDDOB
VDDOB
CLKB[0]
CLKB[2]
CLKB[4]
QB0
J1
J2
A2
A3
A4
A5
A6
A7
A8
A9
A10
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
C2
C3
C4
C5
C6
C7
C8
C9
C10
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
E2
E3
E4
E5
E6
E7
E8
E9
E10
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
G2
G3
G4
G5
G6
G7
G8
G9
G10
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
VDD
J3
VDD
GND
GND
GND
GND
VDD
GND
J4
VDD
GND
J5
VDD
GND
J6
QA1
VDD
GND
VDDOB
QB3
J7
QA2
VDD
VDD
J8
VDDOA
VDDOA
VDDOA
VDDOA
CLKA[0]
CLKA[2]
CLKA[4]
QA0
VDD
VDD
PLL_BYPASS
MR
VDDOB
VDDOB
VDDOB
VDDOB
CLKB[1]
CLKB[3]
CLKB[5]
VDD
J9
REF_OUT[0]
VDDA
VDDA
VDD
GND
PCLK
PCLK
VDD
J10
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
XTAL_IN
XTAL_OUT
VDD
GND
GND
GND
GND
GND
VDD
VDD
GND
VDD
GND
VDD
VDDOA
QA3
GND
VDD
QB1
VDD
VDD
QB2
VDDOA
VDDOA
RSVD
REF_OUT[1]
RSVD
RSVD
RSVD
REF_OUT1E
VDDOB
VDDOB
MOTOROLA
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XC9855
PACKAGE DIMENSIONS
VF SUFFIX
100 MAP PBGA PACKAGE
CASE 1462-01
ISSUE O
B
C
11
A1 INDEX
AREA
K
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETERS.
2. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
3. MAXIMUM SOLDER BALL DIAMETER MEASURED
PARALLEL TO DATUM A.
11
4. DATUM A, SEATING PLANE, IS DEFINED BY THE
SPHERICAL CROWNS OF THE SOLDER BALLS.
5. PARALLELISM MEASUREMENT SHALL EXCLUDE
ANY EFFECT OF MARK ON TOP SURFACE OF
PACKAGING.
4X
0.2
TOP VIEW
SIDE VIEW
9X
1
0.5
5
0.35
A
K
J
(1.18)
H
G
F
9X
1
1.7 MAX
E
D
C
B
A
0.43
0.29
100X
SEATING
PLANE
4
A
0.12
A
0.5
0.55
0.45
3
100X
DETAIL K
ROTATED 90˚ CLOCKWISE
M
M
0.25
A B C
1
2
3
4
5
6
7
8
9
10
A1 INDEX
AREA
0.10
A
BOTTOM VIEW
MOTOROLA
10
TIMING SOLUTIONS
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XC9855
NOTES
TIMING SOLUTIONS
11
MOTOROLA
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could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or
unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all
claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated
with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service names are the property of their
respective owners.
© Motorola, Inc. 2004
HOW TO REACH US:
USA/EUROPE/LOCATIONS NOT LISTED:
Motorola Literature Distribution
P.O. Box 5405, Denver, Colorado 80217
1-800-521-6274 or 480-768-2130
JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center
3-20-1 Minami-Azabu. Minato-ku, Tokyo 106-8573, Japan
81-3-3440-3569
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre
2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong
852-26668334
HOME PAGE: http://motorola.com/semiconductors
XC9855
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