MPC9608AC Freescale Semiconductor, MPC9608AC Datasheet

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MPC9608AC

Manufacturer Part Number
MPC9608AC
Description
IC CLOCK BUFFER 1:10 32-LQFP
Manufacturer
Freescale Semiconductor
Type
Fanout Distribution, Multiplexer , Zero Delay Bufferr
Datasheet

Specifications of MPC9608AC

Pll
Yes with Bypass
Input
LVCMOS
Output
LVCMOS
Number Of Circuits
1
Ratio - Input:output
1:10
Differential - Input:output
No/No
Frequency - Max
200MHz
Divider/multiplier
Yes/No
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-LQFP
Frequency-max
200MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MPC9608AC
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
MPC9608ACR2
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2004. All rights reserved.
1:10 LVCMOS Zero Delay
Clock Buffer
a very wide frequency range and low output skews the MPC9608 is targeted for
high performance and mid-range clock tree designs.
Features
Functional Description
low-skew clock output phase to the reference clock phase, providing virtually
zero propagation delay. This enables nested clock designs with near-zero
insertion delay. Designs using the MPC9608 as PLL fanout buffer will show
significantly lower clock skew than clock distributions developed from traditional
fanout buffers. The device offers one reference clock input and two banks of 5 outputs for clock fanout. The input frequency and
phase is reproduced by the PLL and provided at the outputs. A selectable frequency divider sets the bank B outputs to generate
either an identical copy of the bank A clocks or one half of the bank A clock frequency. Both output banks remain synchronized
to the input reference for both bank B configurations.
diagnosis, the MPC9608 outputs can also be set to high-impedance state by connecting
device provides a PLL bypass mode for low frequency test purpose. In PLL bypass mode, the minimum frequency and static
phase offset specification do not apply.
PLL losing lock.
signals while the outputs provide LVCMOS compatible levels with the capability to drive terminated 50 Ω transmission lines on
the incident edge. For series terminated transmission lines, each of the MPC9608 outputs can drive one or two traces giving the
devices an effective fanout of 1:20. The device is packaged in a 7x7 mm
The MPC9608 is a 3.3 V compatible, 1:10 PLL based zero-delay buffer. With
The MPC9608 uses an internal PLL and an external feedback path to lock its
Outputs are only disabled or enabled when the outputs are already in logic low state (CLK_STOP). For system test and
CLK_STOP and
The MPC9608 is fully 3.3 V compatible and requires no external components for the internal PLL. All inputs accept LVCMOS
1:10 outputs LVCMOS zero-delay buffer
Selectable divide-by-two for one output bank
Synchronous output enable control (CLK_STOP)
Supports networking, telecommunications and computer applications
Ambient Temperature Range -40°C to +85°C
32-lead Pb-free Package Available
Single 3.3 V supply
Supports a clock I/O frequency range of 12.5 to 200 MHz
Output tristate control (output high impedance)
PLL bypass mode for low frequency system test purpose
Supports a variety of microprocessors and controllers
Compatible to PowerQuicc I and II
OE
do not affect the PLL feedback output (QFB) and down stream clocks can be disabled without the internal
2
32-lead LQFP package.
OE
LVCMOS 1:10 ZERO-DELAY
to logic high level. Additionally, the
32-LEAD LQFP PACKAGE
32-LEAD LQFP PACKAGE
LOW VOLTAGE 3.3 V
Pb-FREE PACKAGE
MPC9608
CLOCK BUFFER
CASE 873A-03
CASE 873A-03
FA SUFFIX
AC SUFFIX
Rev 4, 10/2004
MPC9608

Related parts for MPC9608AC

MPC9608AC Summary of contents

Page 1

... LVCMOS compatible levels with the capability to drive terminated 50 Ω transmission lines on the incident edge. For series terminated transmission lines, each of the MPC9608 outputs can drive one or two traces giving the devices an effective fanout of 1:20. The device is packaged in a 7x7 mm © Freescale Semiconductor, Inc., 2004. All rights reserved. Rev 4, 10/2004 MPC9608 LOW VOLTAGE 3 ...

Page 2

... Figure 2. MPC9608 32-Lead Package Pinout (Top View) MPC9608 2 CCLK PLL STOP VCO Figure 1. MPC9608 Logic Diagram MPC9608 Bank A QA0 QA1 QA2 QA3 QA4 Bank B QB0 QB1 ÷ 2 QB2 QB3 QB4 PLL feedback QFB QB4 14 QB3 13 QB2 12 GND 11 QB1 10 QB0 Advanced Clock Drivers Device Data Freescale Semiconductor ...

Page 3

... Advanced Clock Drivers Device Data Freescale Semiconductor PLL reference clock signal PLL feedback signal input, connect to a QFB output PLL frequency range select Frequency divider select for bank B outputs PLL enable/disable Output enable/disable (high-impedance tristate) Synchronous clock enable/stop Clock outputs PLL feedback signal output. Connect to FB_IN Negative power supply PLL positive power supply (analog power supply) ...

Page 4

... Alternatively, the device drives up to two 50 Ω series terminated transmission lines. TT Max Unit Condition ÷ Per output pF Inputs Max Unit Condition ±20 mA ±50 mA °C 125 Max Unit Condition V + 0.3 V LVCMOS CC 0.8 V LVCMOS - 0. 0. Ω ±200 µ GND Pin CCA 4.0 mA All V Pins CC Advanced Clock Drivers Device Data Freescale Semiconductor (1) ...

Page 5

... Applies for bank A and for bank B if BSEL = 0. If BSEL = 1, the minimum and maximum output frequency of bank B is divided by two. 5. Calculation of reference duty cycle limits 100 MHz the input duty cycle range is 20% < DC < 80%. REF point of PLL transfer characteristics. Advanced Clock Drivers Device Data Freescale Semiconductor (1) = -40° to 85°C) A Min (2) F_RANGE = 00 ...

Page 6

... MPC9608 V CCLK CC Common QFB Device 1 Any Q are Device 1 F QFB Device2 Any Q Device 2 Max. skew Figure 4. MPC9608 Maximum Device-to-Device Skew . + ∅ SK(O) PD, LINE(FB) JIT PD,LINE(FB) -t (∅) t JIT(∅) +t SK(O) +t (∅) t JIT(∅) +t SK(O) t SK(PP) Advanced Clock Drivers Device Data Freescale Semiconductor ...

Page 7

... With an output impedance of less than 20 Ω the drivers can drive either parallel or series terminated transmission lines. For more information on transmission lines the reader is re- ferred to Freescale Semiconductor application note AN1091. In most high performance clock networks point-to-point distri- bution of signals is the method of choice point-to-point scheme either series terminated or parallel terminated trans- mission lines can be used ...

Page 8

... Figure 8. CCLK MPC9608 AC Test Reference for V MPC9608 8 MPC9608 Output Buffer 14 Ω Figure 7. Optimized Dual Line Termination should MPC9608 DUT = 50 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω 25 Ω Ω Ω Ω 3 Advanced Clock Drivers Device Data Freescale Semiconductor ...

Page 9

... Figure 11. Output Duty Cycle (DC) T JIT(CC The variation in cycle time of a signal between adjacent cycles, over a random sample of adjacent cycle pairs. Figure 13. Cycle-to-Cycle Jitter Figure 15. Output Transition Time Test Reference Advanced Clock Drivers Device Data Freescale Semiconductor V CC ÷ CCLK CC GND V CC ÷ FB_IN CC GND Figure 10 ...

Page 10

... A2 1.35 1.45 b 0.30 0.45 b1 0.30 0.40 c 0.09 0.20 c1 0.09 0.16 D 9.00 BSC D1 7.00 BSC e 0.80 BSC E 9.00 BSC E1 7.00 BSC L 0.50 0.70 L1 1.00 REF q 0˚ 7˚ REF R1 0.08 0.20 R2 0.08 --- S 0.20 REF Advanced Clock Drivers Device Data Freescale Semiconductor ...

Page 11

... Advanced Clock Drivers Device Data Freescale Semiconductor NOTES MPC9608 11 ...

Page 12

... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...

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