MPC961CACR2 [NXP]
961 SERIES, PLL BASED CLOCK DRIVER, 17 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32, PLASTIC, LQFP-32;型号: | MPC961CACR2 |
厂家: | NXP |
描述: | 961 SERIES, PLL BASED CLOCK DRIVER, 17 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32, PLASTIC, LQFP-32 驱动 输出元件 逻辑集成电路 |
文件: | 总12页 (文件大小:294K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MPC961C/D
The MPC961 is a 2.5V or 3.3V compatible, 1:18 PLL based zero delay
buffer. With output frequencies of up to 200MHz, output skews of 150ps
the device meets the needs of the most demanding clock tree
applications.
LOW VOLTAGE
• Fully Integrated PLL
ZERO DELAY BUFFER
• Up to 200MHz I/O Frequency
• LVCMOS Outputs
• Outputs Disable in High Impedance
• LVCMOS Reference Clock Options
• LQFP Packaging
• ±50ps Cycle–Cycle Jitter
• 150ps Output Skews
The MPC961 is offered with two different input configurations. The
MPC961C offers an LVCMOS reference clock while the MPC961P offers
an LVPECL reference clock.
FA SUFFIX
32–LEAD LQFP PACKAGE
CASE 873A–02
When pulled high the OE pin will force all of the outputs (except QFB)
into a high impedance state. Because the OE pin does not affect the QFB
output, down stream clocks can be disabled without the internal PLL
losing lock.
The MPC961 is fully 2.5V or 3.3V compatible and requires no external
loop filter components. All control inputs accept LVCMOS compatible
levels and the outputs provide low impedance LVCMOS outputs capable
of driving terminated 50 transmission lines. For series terminated lines
the MPC961 can drive two lines per output giving the device an effective
fanout of 1:36. The device is packaged in a 32 lead LQFP.
Q0
Q1
Q2
Q3
PLL
CCLK
FB_IN
Ref
100 – 200 MHz
O
1
50k
50k
50 – 100 MHz
FB
Q14
Q15
Q16
F_RANGE
OE
50k
50k
QFB
The MPC961C requires an external RC filter for the analog power supply pin V . Please see applications section for details.
CCA
Figure 1. MPC961C Logic Diagram
03/01
Motorola, Inc. 2001
For More Information On This Product,
Go to: www.freescale.cRoEmV 1
Freescale Semiconductor, Inc.
MPC961C
24 23 22 21 20 19 18 17
25
26
27
28
29
30
31
32
16
15
14
13
12
11
10
9
VCC
Q12
Q13
Q14
GND
Q15
Q16
QFB
Q5
Q4
Q3
GND
MPC961C
Q2
Q1
Q0
VCC
1
2
3
4
5
6
7
8
Figure 2. 32–Lead Pinout (Top View)
Table 1: PIN CONFIGURATIONS
Pin
I/O
Input
Type
Function
CCLK
FB_IN
LVCMOS
PLL reference clock signal
Input
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
Ground
PLL feedback signal input, connect to a QFB output
PLL frequency range select
F_RANGE
OE
Input
Input
Output enable/disable
Q0 - Q16
QFB
Output
Output
Supply
Supply
Clock outputs
PLL feedback signal output, connect to a FB_IN
Negative power supply
GND
VCCA
VCC
PLL positive power supply (analog power supply). The MPC961C requires
an external RC filter for the analog power supply pin V
plications section for details.
. Please see ap-
CCA
VCC
NC
Supply
VCC
Positive power supply for I/O and core
Not connected
Table 2: FUNCTION TABLE
Control
Default
0
1
F_RANGE
0
PLL high frequency range. MPC961C input reference
and output clock frequency range is 100 – 200 MHz
PLL low frequency range. MPC961C input reference
and output clock frequency range is 50 – 100 MHz
OE
0
Outputs enabled
Outputs disabled (high–impedance state)
For More Information On This Product,
MOTOROLA
2
TIMING SOLUTIONS
DL207 — Rev 0
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
Table 3: ABSOLUTE MAXIMUM RATINGS*
Symbol
Parameter
Min
–0.3
–0.3
–0.3
Max
Unit
V
V
V
V
Supply Voltage
3.6
CC
DC Input Voltage
DC Output Voltage
DC Input Current
DC Output Current
V
V
+ 0.3
V
IN
CC
+ 0.3
V
OUT
CC
I
I
±20
mA
mA
°C
IN
±50
OUT
T
Storage Temperature Range
–40
125
S
* Absolute maximum continuous ratings are those 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 under absolute–maximum–rated conditions is
not implied.
Table 4: DC CHARACTERISTICS (V
CC
= 3.3V ± 5%, T = –40° to 85°C)
A
Symbol
Characteristic
Input HIGH Voltage
Min
2.0
Typ
Max
V + 0.3
CC
Unit
V
Condition
LVCMOS
LVCMOS
V
IH
V
V
V
Input LOW Voltage
–0.3
2.4
0.8
V
IL
a
= –20mA
Output HIGH Voltage
V
I
OH
OL
OUT
OH
OL
a
= 20mA
Output LOW Voltage
0.55
20
V
I
Z
Output Impedance
14
I
Input Current
±120
µA
pF
pF
mA
mA
V
IN
C
C
Input Capacitance
4.0
8.0
2.0
IN
Power Dissipation Capacitance
Maximum PLL Supply Current
Maximum Quiescent Supply Current
Output Termination Voltage
10
Per Output
V Pin
PD
I
I
5.0
CCA
CC
CCA
All VCC Pins
V
V
2
TT
CC
a. The MPC961C is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated
transmission line to a termination voltage of V . Alternatively, the device drives up two 50Ω series terminated transmission lines.
TT
a
= 3.3V ± 5%, T = –40° to 85°C)
A
Table 5: AC CHARACTERISTICS (V
CC
Symbol
Characteristic
Min
Typ
Max
Unit
Condition
f
Input Frequency
F_RANGE = 0
F_RANGE = 1
100
50
200
100
MHz
ref
f
Maximum Output Frequency
F_RANGE = 0
F_RANGE = 1
100
50
200
100
MHz
max
f
Reference Input Duty Cycle
TCLK Input Rise/Fall Time
25
75
3.0
120
%
ns
ps
refDC
t , t
r f
0.8 to 2.0V
PLL locked
t
(
Propagation Delay
(static phase offset)
CCLK to FB_IN
–80
)
b
t
Output–to–Output Skew
90
150
ps
%
sk(O)
DC
Output Duty Cycle
F_RANGE = 0
F_RANGE = 1
42
45
50
50
55
55
O
t , t
r f
Output Rise/Fall Time
Output Disable Time
Output Enable Time
Cycle–to–Cycle Jitter
Period Jitter
0.1
1.0
10
10
15
10
15
10
ns
ns
ns
ps
ps
ns
ms
0.55 to 2.4V
t
t
t
t
t
t
,
PLZ HZ
,
PZL LZ
c
RMS (1
RMS (1
RMS (1
)
JIT(CC)
)
)
7.0
JIT(PER)
I/O Phase Jitter
JIT(
lock
)
Maximum PLL Lock Time
a. AC characteristics apply for parallel output termination of 50 to V
b. See applications section for part–to–part skew calculation
TT
c. See applications section for calculation for other confidence factors than 1
For More Information On This Product,
TIMING SOLUTIONS
DL207 — Rev 0
3
MOTOROLA
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
Table 6: DC CHARACTERISTICS (V
= 2.5V ± 5%, T = –40° to 85°C)
A
CC
Symbol
Characteristic
Input HIGH Voltage
Min
1.7
Typ
Max
V + 0.3
CC
Unit
V
Condition
LVCMOS
LVCMOS
V
IH
V
V
V
Input LOW Voltage
–0.3
1.8
0.7
V
IL
a
= –15mA
Output HIGH Voltage
V
I
OH
OL
OUT
OH
OL
a
= 15mA
Output LOW Voltage
0.6
26
V
I
Z
Output Impedance
18
I
Input Current
±120
µA
pF
pF
mA
mA
V
IN
C
C
Input Capacitance
4.0
8.0
2.0
IN
Power Dissipation Capacitance
Maximum PLL Supply Current
Maximum Quiescent Supply Current
Output Termination Voltage
10
Per Output
V Pin
PD
I
I
5.0
CCA
CCA
All VCC Pins
CC
V
V
2
TT
CC
a. The MPC961C is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated
transmission line to a termination voltage of V . Alternatively, the device drives up two 50Ω series terminated transmission lines.
TT
a
= 2.5V ± 5%, T = –40° to 85°C)
A
Table 7: AC CHARACTERISTICS (V
CC
Symbol
Characteristic
Min
Typ
Max
Unit
Condition
f
Input Frequency
F_RANGE = 0
F_RANGE = 1
100
50
200
100
MHz
ref
f
Maximum Output Frequency
F_RANGE = 0
F_RANGE = 1
100
50
200
100
MHz
max
refDC
f
Reference Input Duty Cycle
TCLK Input Rise/Fall Time
25
75
3.0
120
%
ns
ps
t , t
r f
0.7 to 1.7V
PLL locked
t
(
Propagation Delay
(static phase offset)
CCLK to FB_IN
–80
)
b
t
Output–to–Output Skew
90
150
ps
%
sk(O)
DC
Output Duty Cycle
F_RANGE = 0
F_RANGE = 1
40
45
50
50
60
55
O
t , t
r f
Output Rise/Fall Time
Output Disable Time
Output Enable Time
Cycle–to–Cycle Jitter
Period Jitter
0.1
1.0
10
10
15
10
15
10
ns
ns
ns
ps
ps
ns
ms
0.6 to 1.8V
t
t
t
t
t
t
,
PLZ HZ
,
PZL LZ
c
RMS (1
RMS (1
RMS (1
)
JIT(CC)
)
)
7.0
JIT(PER)
I/O Phase Jitter
JIT(
lock
)
Maximum PLL Lock Time
a. AC characteristics apply for parallel output termination of 50 to V
b. See applications section for part–to–part skew calculation
TT
c. See applications section for calculation for other confidence factors than 1
For More Information On This Product,
MOTOROLA
4
TIMING SOLUTIONS
DL207 — Rev 0
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
Power Supply Filtering
adequate to eliminate power supply noise related problems
in most designs.
The MPC961C is a mixed analog/digital product and as
such it exhibits some sensitivities that would not necessarily
be seen on a fully digital product. Analog circuitry is naturally
susceptible to random noise, especially if this noise is seen
on the power supply pins. The MPC961C provides separate
power supplies for the output buffers (V ) and the
phase–locked loop (V
CCA
design technique is to isolate the high switching noise digital
outputs from the relatively sensitive internal analog
phase–locked loop. In a controlled environment such as an
evaluation board this level of isolation is sufficient. However,
in a digital system environment where it is more difficult to
minimize noise on the power supplies a second level of
isolation may be required. The simplest form of isolation is a
Driving Transmission Lines
The MPC961C clock driver was designed to drive high
speed signals in a terminated transmission line environment.
To provide the optimum flexibility to the user the output
drivers were designed to exhibit the lowest impedance
possible. With an output impedance of less than 15Ω the
drivers can drive either parallel or series terminated
transmission lines. For more information on transmission
lines the reader is referred to application note AN1091.
CC
) of the device. The purpose of this
In most high performance clock networks point–to–point
distribution of signals is the method of choice. In a
point–to–point scheme either series terminated or parallel
terminated transmission lines can be used. The parallel
technique terminates the signal at the end of the line with a
50Ω resistance to VCC/2. This technique draws a fairly high
level of DC current and thus only a single terminated line can
be driven by each output of the MPC961C clock driver. For
the series terminated case however there is no DC current
draw, thus the outputs can drive multiple series terminated
lines. Figure 4. illustrates an output driving a single series
terminated line vs two series terminated lines in parallel.
When taken to its extreme the fanout of the MPC961C clock
driver is effectively doubled due to its capability to drive
multiple lines.
power supply filter on the V
pin for the MPC961C.
CCA
Figure 3. illustrates a typical power supply filter scheme.
The MPC961C is most susceptible to noise with spectral
content in the 10kHz to 10MHz range. Therefore the filter
should be designed to target this range. The key parameter
that needs to be met in the final filter design is the DC voltage
drop that will be seen between the V
pin of the MPC961C. From the data sheet the I
(the current sourced through the V
(5mA maximum), assuming that a minimum of 2.375V (V
supply and the V
CC
CCA
current
CCA
pin) is typically 2mA
CCA
=
CC
3.3V or V
= 2.5V) must be maintained on the V
pin.
The resistor R shown in Figure 3. must have a resistance of
CC
CCA
F
270Ω (V
= 3.3V) or 5 to 15Ω (V = 2.5V) to meet the
CC
CC
voltage drop criteria. The RC filter pictured will provide a
broadband filter with approximately 100:1 attenuation for
noise whose spectral content is above 20kHz. As the noise
frequency crosses the series resonant point of an individual
capacitor it’s 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
bandwidth of the PLL.
MPC961
OUTPUT
BUFFER
Z
= 50Ω
O
R = 36Ω
S
14Ω
IN
IN
OutA
MPC961
OUTPUT
BUFFER
Z
O
= 50Ω
= 50Ω
R = 36Ω
S
OutB0
OutB1
R = 270Ω for V = 3.3V
F
F
CC
14Ω
R = 5–15Ω for V = 2.5V
CC
Z
O
R = 36Ω
S
R
F
VCCA
VCC
22 µF
10 nF
MPC961C
Figure 4. Single versus Dual Transmission Lines
VCC
The waveform plots of Figure 5. show the simulation
results of an output driving a single line vs two lines. In both
cases the drive capability of the MPC961C output buffer is
more than sufficient to drive 50Ω transmission lines on the
incident edge. Note from the delay measurements in the
simulations a delta of only 43ps exists between the two
differently loaded outputs. This suggests that the dual line
driving need not be used exclusively to maintain the tight
output–to–output skew of the MPC961C. The output
waveform in Figure 5. shows a step in the waveform, this
step is caused by the impedance mismatch seen looking into
the driver. The parallel combination of the 36Ω series resistor
plus the output impedance does not match the parallel
33...100 nF
Figure 3. Power Supply Filter
Although the MPC961C has several design features to
minimize the susceptibility to power supply noise (isolated
power and grounds and fully differential PLL) there still may
be applications in which overall performance is being
degraded due to system power supply noise. The power
supply filter schemes discussed in this section should be
For More Information On This Product,
TIMING SOLUTIONS
DL207 — Rev 0
5
MOTOROLA
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
combination of the line impedances. The voltage wave
launched down the two lines will equal:
SPICE level and IBIS output buffer models are available
for engineers who want to simulate their specific interconnect
schemes.
VL = VS ( Zo / (Rs + Ro +Zo))
Zo = 50Ω || 50Ω
Rs = 36Ω || 36Ω
Using the MPC961C in zero-delay applications
Ro = 14Ω
Nested clock trees are typical applications for the
MPC961C. Designs using the MPC961C as LVCMOS PLL
fanout buffer with zero insertion delay will show significantly
lower clock skew than clock distributions developed from
CMOS fanout buffers. The external feedback option of the
MPC961C clock driver allows for its use as a zero delay
buffer. By using the QFB output as a feedback to the PLL the
propagation delay through the device is virtually eliminated.
The PLL aligns the feedback clock output edge with the clock
input reference edge resulting a near zero delay through the
device. The maximum insertion delay of the device in
zero-delay applications is measured between the reference
clock input and any output. This effective delay consists of
the static phase offset, I/O jitter (phase or long-term jitter),
feedback path delay and the output-to-output skew error
relative to the feedback output.
VL = 3.0 (25 / (18 + 14 + 25) = 3.0 (25 / 57)
= 1.31V
At the load end the voltage will double, due to the near
unity reflection coefficient, to 2.62V. It will then increment
towards the quiescent 3.0V in steps separated by one round
trip delay (in this case 4.0ns).
3.0
OutA
= 3.8956
OutB
= 3.9386
t
D
2.5
2.0
1.5
1.0
0.5
0
t
D
In
Calculation of part-to-part skew
The MPC961C zero delay buffer supports applications
where critical clock signal timing can be maintained across
several devices. If the reference clock inputs of two or more
MPC961C are connected together, the maximum overall
timing uncertainty from the common CCLK input to any
output is:
t
= t
+ t
+ t
+ t
CF
This maximum timing uncertainty consist of 4
SK(PP)
( )
SK(O)
PD, LINE(FB)
JIT( )
2
4
6
8
10
12
14
TIME (nS)
components: static phase offset, output skew, feedback
board trace delay and I/O (phase) jitter:
Figure 5. Single versus Dual Waveforms
Since this step is well above the threshold region it will not
cause any false clock triggering, however designers may be
uncomfortable with unwanted reflections on the line. To
better match the impedances when driving multiple lines the
situation in Figure 6. should be used. In this case the series
terminating resistors are reduced such that when the parallel
combination is added to the output buffer impedance the line
impedance is perfectly matched.
CCLK
Common
t
PD,LINE(FB)
–t
(
)
QFB
Device 1
t
JIT(
)
Any Q
Device 1
+t
SK(O)
+t
(
)
MPC961
OUTPUT
BUFFER
Z
= 50Ω
= 50Ω
QFB
O
R = 22Ω
Device2
S
t
JIT(
)
14Ω
Any Q
Device 2
+t
SK(O)
Z
O
R = 22Ω
S
Max. skew
t
SK(PP)
Figure 7. MPC961C max. device-to-device skew
14Ω + 22Ω 22Ω = 50Ω 50Ω
25Ω = 25Ω
Due to the statistical nature of I/O jitter a rms value (1 ) is
specified. I/O jitter numbers for other confidence factors (CF)
can be derived from Table 8.
Figure 6. Optimized Dual Line Termination
For More Information On This Product,
MOTOROLA
6
TIMING SOLUTIONS
DL207 — Rev 0
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
convection and thermal conductivity of package and board.
This section describes the impact of these parameters on the
junction temperature and gives a guideline to estimate the
MPC961C die junction temperature and the associated
device reliability. For a complete analysis of power
consumption as a function of operating conditions and
associated long term device reliability please refer to the
application note AN1545. According the AN1545, the
long-term device reliability is a function of the die junction
temperature:
Table 8: Confidence Facter CF
CF
Probability of clock edge within the distribution
± 1
± 2
± 3
± 4
± 5
± 6
0.68268948
0.95449988
0.99730007
0.99993663
0.99999943
0.99999999
The feedback trace delay is determined by the board
layout and can be used to fine-tune the effective delay
through each device. In the following example calculation a
I/O jitter confidence factor of 99.7% (± 3 ) is assumed,
resulting in a worst case timing uncertainty from input to any
output of -275 ps to 315 ps relative to CCLK:
Table 9: Die junction temperature and MTBF
Junction temperature (°C)
MTBF (Years)
100
110
120
130
20.4
9.1
4.2
2.0
t
=
=
[–80ps...120ps] + [–150ps...150ps] +
[(15ps –3)...(15ps 3)] + t
SK(PP)
PD, LINE(FB)
[–275ps...315ps] + t
PD, LINE(FB)
Increased power consumption will increase the die
junction temperature and impact the device reliability
(MTBF). According to the system-defined tolerable MTBF,
the die junction temperature of the MPC961C needs to be
controlled and the thermal impedance of the board/package
should be optimized. The power dissipated in the MPC961C
is represented in equation 1.
t
SK(PP)
Due to the frequency dependence of the I/O jitter,
Figure 8. “Max. I/O Jitter versus frequency” can be used for
a more precise timing performance analysis.
Where I
is the static current consumption of the
is the power dissipation capacitance per
CCQ
MPC961C, C
PD
output, (Μ)ΣC represents the external capacitive output
L
load, N is the number of active outputs (N is always 27 in
case of the MPC961C). The MPC961C supports driving
transmission lines to maintain high signal integrity and tight
timing parameters. Any transmission line will hide the lumped
capacitive load at the end of the board trace, therefore, ΣC is
L
zero for controlled transmission line systems and can be
eliminated from equation 1. Using parallel termination output
termination results in equation 2 for power dissipation.
In equation 2, P stands for the number of outputs with a
Figure 8. Max. I/O Jitter versus frequency
parallelorthevenintermination, V , I , V
and I
are a
OL OL OH
OH
function of the output termination technique and DC is the
Power Consumption of the MPC961C and Thermal
Management
Q
clock signal duty cyle. If transmission lines are used ΣC is
L
The MPC961C AC specification is guaranteed for the
entire operating frequency range up to 200 MHz. The
MPC961C power consumption and the associated long-term
reliability may decrease the maximum frequency limit,
depending on operating conditions such as clock frequency,
supply voltage, output loading, ambient temperature, vertical
zero in equation 2 and can be eliminated. In general, the use
of controlled transmission line techniques eliminates the
impact of the lumped capacitive loads at the end lines and
greatly reduces the power dissipation of the device. Equation
3 describes the die junction temperature T as a function of
J
the power consumption.
PTOT
ICCQ VCC fCLOCK
N
CPD
CL
VCC
Equation 1
Equation 2
M
PTOT
VCC
ICCQ VCC fCLOCK
N
CPD
CL
DCQ IOH VCC VOH
1
DCQ IOL VOL
M
P
Equation 3
Equation 4
TJ
TA PTOT Rthja
TJ,MAX TA
Rthja
1
N
fCLOCK,MAX
ICCQ VCC
CPD
V2CC
For More Information On This Product,
TIMING SOLUTIONS
DL207 — Rev 0
7
MOTOROLA
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
Where R
is the thermal impedance of the package
T
should be selected according to the MTBF system
J,MAX
thja
(junction to ambient) and T is the ambient temperature.
requirements and Table 9. R
The R
boards will result in a lower thermal impedance than
indicated below.
can be derived from Table10.
A
thja
represent data based on 1S2P boards, using 2S2P
According to Table 9, the junction temperature can be used to
estimate the long-term device reliability. Further, combining
equation 1 and equation 2 results in a maximum operating
frequency for the MPC961C in a series terminated
transmission line system.
thja
If the calculated maximum frequency is below 200 MHz, it
becomes the upper clock speed limit for the given application
conditions. The following two derating charts describe the
safe frequency operation range for the MPC961C. The charts
were calculated for a maximum tolerable die junction
temperature of 110°C, corresponding to an estimated MTBF
of 9.1 years, a supply voltage of 3.3V and series terminated
transmission line or capacitive loading. Depending on a given
set of these operating conditions and the available device
convection a decision on the maximum operating frequency
can be made. There are no operating frequency limitations if
a 2.5V power supply or the system specifications allow for a
MTBF of 4 years (corresponding to a max. junction
temperature of 120°C.
Table 10: Thermal package impedance of the 32ld
LQFP
Convection, LFPM
Still air
R
(1P2S board), K/W
thja
80
70
61
57
56
55
100 lfpm
200 lfpm
300 lfpm
400 lfpm
500 lfpm
200
200
f
(AC)
f
(AC)
MAX
MAX
180
160
140
120
100
80
180
160
140
120
100
80
T = 85°C
A
T = 75°C
A
T = 85°C
A
60
60
Safe operation
Safe operation
40
40
20
20
0
0
500
400
300
200
100
0
500
400
300
200
100
0
I
, CONVECTION
I
, CONVECTION
FPM
FPM
Figure 9. Maximum MPC961C frequency, V
= 3.3V, MTBF
Figure 10. Maximum MPC961C frequency,
V = 3.3V, MTBF 9.1 years, 4 pF load per line
CC
CC
9.1 years, driving series terminated transmission lines
MPC961C DUT
Pulse
Generator
Z = 50
Z
O
= 50Ω
Z = 50Ω
O
R = 50Ω
T
R = 50Ω
T
V
TT
V
TT
Figure 11. TCLK MPC961C AC test reference for V = 3.3V and V = 2.5V
cc
cc
For More Information On This Product,
MOTOROLA
8
TIMING SOLUTIONS
DL207 — Rev 0
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
V
CC
V
CC
V
CC
GND
2
2
CCLK
FB_IN
V
CC
2
2
GND
V
OH
V
CC
V
CC
V
CC
GND
GND
t
SK(O)
t
(
)
The pin–to–pin skew is defined as the worst case difference in prop-
agation delay between any similar delay path within a single device
Figure 12. Output–to–output Skew t
SK(O)
Figure 13. Propagation delay (t , static phase
PD
offset) test reference
V
CC
V
CC
GND
2
CCLK
FB_IN
t
P
T
0
DC = t /T x 100%
P 0
T
JIT
= |T –T mean|
0 1
)
The time from the PLL controlled edge to the non controlled edge,
divided by the time between PLL controlled edges, expressed as a
percentage
The deviation in t for a controlled edge with respect to a t mean in a
random sample of cycles
0
0
Figure 14. Output Duty Cycle (DC)
Figure 15. I/O Jitter
T
= |T –T
N+1
|
T
= |T –1/f |
JIT(CC)
N
JIT(PER) N 0
T
N
T
N+1
T
0
The variation in cycle time of a signal between adjacent cycles, over a
random sample of adjacent cycle pairs
The deviation in cycle time of a signal with respect to the ideal period over
a random sample of cycles
Figure 16. Cycle–to–cycle Jitter
Figure 17. Period Jitter
V =3.3V
CC
V =2.5V
CC
2.4
0.55
1.8V
0.6V
t
F
t
R
Figure 18. Output Transition Time Test
Reference
For More Information On This Product,
TIMING SOLUTIONS
DL207 — Rev 0
9
MOTOROLA
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
OUTLINE DIMENSIONS
FA SUFFIX
LQFP PACKAGE
CASE 873A–02
ISSUE A
4X
A
A1
0.20 (0.008) AB T–U
Z
32
25
1
–U–
V
–T–
B
AE
AE
P
B1
DETAIL Y
–Z–
V1
17
8
DETAIL Y
9
4X
0.20 (0.008) AC T–U
Z
9
NOTES:
S1
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
S
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE –AB– IS LOCATED AT BOTTOM OF
LEAD AND IS COINCIDENT WITH THE LEAD
WHERE THE LEAD EXITS THE PLASTIC BODY AT
THE BOTTOM OF THE PARTING LINE.
4. DATUMS –T–, –U–, AND –Z– TO BE DETERMINED
AT DATUM PLANE –AB–.
DETAIL AD
G
5. DIMENSIONS S AND V TO BE DETERMINED AT
SEATING PLANE –AC–.
–AB–
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS
0.250 (0.010) PER SIDE. DIMENSIONS A AND B
DO INCLUDE MOLD MISMATCH AND ARE
DETERMINED AT DATUM PLANE –AB–.
7. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. DAMBAR PROTRUSION SHALL
NOT CAUSE THE D DIMENSION TO EXCEED
0.520 (0.020).
SEATING
PLANE
–AC–
0.10 (0.004) AC
BASE
METAL
N
8. MINIMUM SOLDER PLATE THICKNESS SHALL BE
0.0076 (0.0003).
9. EXACT SHAPE OF EACH CORNER MAY VARY
FROM DEPICTION.
F
D
8X M
MILLIMETERS
DIM MIN MAX
7.000 BSC
INCHES
MIN MAX
0.276 BSC
0.138 BSC
0.276 BSC
0.138 BSC
R
J
A
A1
B
3.500 BSC
7.000 BSC
3.500 BSC
SECTION AE–AE
E
C
B1
C
1.400
1.600 0.055
0.063
0.018
0.057
0.016
D
E
F
0.300
1.350
0.300
0.450 0.012
1.450 0.053
0.400 0.012
W
G
H
J
K
M
N
P
0.800 BSC
0.031 BSC
Q
H
K
X
0.050
0.090
0.500
0.150 0.002
0.200 0.004
0.700 0.020
0.006
0.008
0.028
12 REF
12 REF
0.006
0.016 BSC
DETAIL AD
0.090
0.160 0.004
0.400 BSC
Q
R
1
5
1
5
0.150
0.250 0.006
0.010
S
9.000 BSC
0.354 BSC
S1
V
V1
W
X
4.500 BSC
9.000 BSC
4.500 BSC
0.200 REF
1.000 REF
0.177 BSC
0.354 BSC
0.177 BSC
0.008 REF
0.039 REF
For More Information On This Product,
MOTOROLA
10
TIMING SOLUTIONS
DL207 — Rev 0
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
NOTES
For More Information On This Product,
TIMING SOLUTIONS
DL207 — Rev 0
11
MOTOROLA
Go to: www.freescale.com
Freescale Semiconductor, Inc.
MPC961C
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or
guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the
applicationor use of any product or circuit, and specifically disclaims any and all liability, includingwithoutlimitationconsequentialorincidental
damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in differentapplications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application
by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are
not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the Motorola product 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,
BuyershallindemnifyandholdMotorolaanditsofficers, employees, subsidiaries, affiliates, anddistributorsharmlessagainstallclaims, 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
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;
JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3–20–1,
P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 Minami–Azabu. Minato–ku, Tokyo 106–8573 Japan. 81–3–3440–3569
Technical Information Center: 1–800–521–6274
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://www.motorola.com/semiconductors/
For More Information On This Product,
◊
MPC961C/D
Go to: www.freescale.com
DL207 — Rev 0
相关型号:
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明