MPC9772FA Freescale Semiconductor, MPC9772FA Datasheet - Page 10

• Manufacturer Part Number: MPC9772FA
• Description: IC CLOCK GEN PLL LV 1:12 52-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Clock Generator, Fanout Distribution, Multiplexer , Zero Delay Bufferr

Specifications of MPC9772FA

• Pll: Yes with Bypass
• Input: LVCMOS
• Output: LVCMOS
• Number Of Circuits: 1
• Ratio - Input:output: 3:12
• Differential - Input:output: No/No
• Frequency - Max: 240MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-LQFP
• Frequency-max: 240MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MOTOROLA
SYNC Output Description
QSYNC. In configurations with the output frequency
relationships are not integer multiples of each other QSYNC
provides a signal for system synchronization purposes. The
MPC9772 monitors the relationship between the A bank and
the B bank of outputs. The QSYNC output is asserted (logic
low) one period in duration and one period prior to the
MPC9772
The MPC9772 has a system synchronization pulse output
QA(÷12)
QSYNC
QSYNC
QSYNC
QSYNC
QSYNC
QSYNC
QSYNC
QC(÷2)
QC(÷6)
QC(÷2)
QC(÷8)
QC(÷2)
QA(÷6)
QA(÷4)
QA(÷8)
QA(÷6)
f
VCO
QC
QC
QA
QA
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 6. QSYNC Timing Diagram
Go to: www.freescale.com
1:1 Mode
2:1 Mode
3:1 Mode
3:2 Mode
4:1 Mode
4:3 Mode
6:1 Mode
10
coincident rising edges of the QA and QC outputs. The duration
and the placement of the pulse is dependent QA and QC output
frequencies: the QSYNC pulse width is equal to the period of
the higher of the QA and QC output frequencies. Figure 6
shows various waveforms for the QSYNC output. The QSYNC
output is defined for all possible combinations of the bank A and
bank C outputs.
TIMING SOLUTIONS