MPC9446AC Freescale Semiconductor, MPC9446AC Datasheet - Page 7

• Manufacturer Part Number: MPC9446AC
• Description: IC CLOCK FANOUT BUFFER 32-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Fanout Buffer (Distribution), Divider, Multiplexerr

Specifications of MPC9446AC

• Number Of Circuits: 1
• Ratio - Input:output: 2:10
• Differential - Input:output: No/No
• Input: LVCMOS
• Output: LVCMOS
• Frequency - Max: 250MHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 250MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Advanced Clock Drivers Devices
Freescale Semiconductor
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 pin-to-pin skew is defined as the worst case difference
in propagation delay between any two similar delay paths
within a single device.
Figure 7. Output Transition Time Test Reference
t
F
Figure 9. Output-to-Output Skew t
Figure 11. Output Duty Cycle (DC)
t
P
Figure 6. CCLK0, 1 MPC9446 AC Test Reference for V
Generator
T
Z = 50Ω
0
Pulse
DC = t
t
SK(LH)
t
R
P
/T
0
x 100%
V
CC
0.55
= 3.3V
2.4
t
SK(LH, HL)
SK(HL)
Z
V
V
GND
O
CC
CC
R
= 50Ω
V
V
V
GND
V
V
GND
T
CC
CC
CC
CC
CC
÷2
= 50Ω
1.8V
0.6V
÷2
÷2
= 2.5V
V
TT
MPC9446 DUT
Figure 10. Output Pulse Skew (t
CCLK
Figure 8. Propagation Delay (t
Q
CCLK
The variation in cycle time of a signal between adjacent
cycles, over a random sample of adjacent cycle pairs.
X
Qx
CC
Figure 12. Cycle-to-Cycle Jitter
Z
t
= 3.3 V and V
(LH)
O
T
= 50 Ω
N
t
(LH)
t
SK(P)
T
R
N+1
T
= 50Ω
= | t
CC
PLH
t
(HL)
V
– t
TT
= 2.5 V
t
(HL)
PHL
T
SK(P)
PD
JIT(CC)
|
) Test Reference
) Test Reference
= |T
N
-T
N+1
V
V
GND
V
V
GND
CC
CC
CC
CC
|
MPC9446
÷2
÷2
V
V
GND
V
V
GND
CC
CC
CC
CC
÷2
÷2
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