MPC93R51ACR2 IDT, Integrated Device Technology Inc, MPC93R51ACR2 Datasheet - Page 9

• Manufacturer Part Number: MPC93R51ACR2
• Description: IC PLL CLK DRIVER LV 32-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PLL Clock Generatorr

Specifications of MPC93R51ACR2

• Pll: Yes with Bypass
• Input: LVCMOS, LVPECL
• Output: LVCMOS
• Number Of Circuits: 1
• Ratio - Input:output: 2:9
• Differential - Input:output: Yes/No
• Frequency - Max: 240MHz
• Divider/multiplier: Yes/Yes
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 240MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IDT™ Low Voltage PLL Clock Driver
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
MPC93R51
Low Voltage PLL Clock Driver
Advanced Clock Drivers Devices
Freescale Semiconductor
3.0
2.5
2.0
1.5
1.0
0.5
0
Figure 8. Single versus Dual Waveforms
t
D
2
= 3.8956
OutA
In
4
Differential Pulse
Generator
Generator
Z = 50Ω
Z = 50Ω
Pulse
6
Figure 10. TCLK MPC93R51 AC Test Reference for V
TIME (ns)
t
D
= 3.9386
OutB
8
Figure 11. PCLK MPC9R351 AC Test Reference
10
Z
O
V
= 50Ω
TT
Z
O
12
R
= 50Ω
R
T
T
= 50Ω
= 50Ω
14
V
TT
MPC93R51 DUT
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MPC93R51 DUT
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
terminating resistors are reduced such that when the parallel
combination is added to the output buffer impedance, the line
impedance is perfectly matched.
Since this step is well above the threshold region it will not
Figure 9. Optimized Dual Line Termination
Figure 9
MPC93R51
OUTPUT
BUFFER
14Ω
14Ω + 22Ω || 22Ω = 50Ω || 50Ω
Z
Z
O
O
CC
= 50Ω
= 50Ω
should be used. In this case, the series
= 3.3 V
R
R
25Ω = 25Ω
R
R
T
T
S
S
= 50Ω
= 50Ω
= 22Ω
= 22Ω
V
V
TT
TT
Z
Z
O
O
= 50Ω
= 50Ω
MPC93R51
NETCOM
MPC93R51
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