MPC9653AFAR2 Freescale Semiconductor, MPC9653AFAR2 Datasheet

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MPC9653AFAR2

Manufacturer Part Number
MPC9653AFAR2
Description
IC PLL CLK GENERATOR 1:8 32-LQFP
Manufacturer
Freescale Semiconductor
Type
Clock Generator, Fanout Distribution, Multiplexer , Zero Delay Bufferr
Datasheet

Specifications of MPC9653AFAR2

Pll
Yes with Bypass
Input
LVCMOS, LVPECL
Output
LVCMOS
Number Of Circuits
1
Ratio - Input:output
1:8
Differential - Input:output
Yes/No
Frequency - Max
125MHz
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
125MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
MPC9653AFAR2TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MPC9653AFAR2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2004. All rights reserved.
3.3 V 1:8 LVCMOS PLL Clock
Generator
zero-delay buffer targeted for high performance low-skew clock distribution in
mid-range to high-performance telecom, networking and computing applications.
With output frequencies up to 125 MHz and output skews less than 150 ps the
device meets the needs of the most demanding clock applications.
Features
Functional Description
input reference clock. Normal operation of the MPC9653A requires the connec-
tion of the QFB output to the feedback input to close the PLL feedback path (external feedback). With the PLL locked, the output
frequency is equal to the reference frequency of the device and VCO_SEL selects the operating frequency range of 25 to
62.5 MHz or 50 to 125 MHz. The two available post-PLL dividers selected by VCO_SEL (divide-by-4 or divide-by-8) and the ref-
erence clock frequency determine the VCO frequency. Both must be selected to match the VCO frequency range. The internal
VCO of the MPC9653A is running at either 4x or 8x of the reference clock frequency. The MPC9653A is guaranteed to lock in a
low power PLL mode in the high frequency range (VCO_SEL = 0) down to PLL = 145 MHz or F
as a zero delay, low skew fanout buffer. The device performance has been tuned and optimized for zero delay performance.
lected input reference clock is bypassing the PLL and routed either to the output dividers or directly to the outputs. The PLL by-
pass configurations are fully static and the minimum clock frequency specification and all other PLL characteristics do not apply.
The outputs can be disabled (high-impedance) and the device reset by asserting the MR/OE pin. Asserting MR/OE also causes
the PLL to loose lock due to missing feedback signal presence at FB_IN. Deasserting MR/OE will enable the outputs and close
the phase locked loop, enabling the PLL to recover to normal operation.
LVCMOS signals while the outputs provide LVCMOS compatible levels with the capability to drive terminated 50 Ω transmission
lines. For series terminated transmission lines, each of the MPC9653A outputs can drive one or two traces giving the devices an
effective fanout of 1:16. The device is packaged in a 7x7 mm
The MPC9653A is a 3.3 V compatible, 1:8 PLL based clock generator and
The MPC9653A utilizes PLL technology to frequency lock its outputs onto an
The MPC9653A has a differential LVPECL reference input along with an external feedback input. The device is ideal for use
The PLL_EN and BYPASS controls select the PLL bypass configuration for test and diagnosis. In this configuration, the se-
The MPC9653A is fully 3.3 V compatible and requires no external loop filter components. The inputs (except PCLK) accept
1:8 PLL based low-voltage clock generator
32-lead Pb-free Package Available
Supports zero-delay operation
3.3 V power supply
Generates clock signals up to 125 MHz
PLL guaranteed to lock down to 145 MHz, output frequency = 36.25 MHz
Maximum output skew of 150 ps
Differential LVPECL reference clock input
External PLL feedback
Drives up to 16 clock lines
32-lead LQFP packaging
Ambient temperature range 0°C to +70°C
Pin and function compatible to the MPC953 and MPC9653
2
32-lead LQFP package.
PLL CLOCK GENERATOR
32-LEAD LQFP PACKAGE
32-LEAD LQFP PACKAGE
MPC9653A
ref
3.3 V LVCMOS 1:8
Pb-FREE PACKAGE
LOW VOLTAGE
= 36.25 MHz.
CASE 873A-03
CASE 873A-03
FA SUFFIX
AC SUFFIX
Rev 4, 10/2004
MPC9653A

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MPC9653AFAR2 Summary of contents

Page 1

... LVCMOS signals while the outputs provide LVCMOS compatible levels with the capability to drive terminated 50 Ω transmission lines. For series terminated transmission lines, each of the MPC9653A outputs can drive one or two traces giving the devices an effective fanout of 1:16. The device is packaged in a 7x7 mm © Freescale Semiconductor, Inc., 2004. All rights reserved. MPC9653A LOW VOLTAGE 3 ...

Page 2

... BYPASS VCO_SEL Figure 2. MPC9653A 32-Lead Package Pinout (Top View) MPC9653A 2 ÷ Ref & 1 ÷ 2 VCO 1 PLL 200-500 MHz FB Note 1. PLL will lock @ 145 MHz Figure 1. MPC9653A Logic Diagram MPC9653A ÷ QFB GND MR/OE 9 PCLK 8 Advanced Clock Drivers Device Data Freescale Semiconductor ...

Page 3

... MR/OE 0 Outputs enabled (active) 1. PLL operation requires BYPASS = 1 and PLL_EN = 1. Advanced Clock Drivers Device Data Freescale Semiconductor PECL reference clock signal PLL feedback signal input, connect to QFB Operating frequency range select PLL and output divider bypass select PLL enable/disable Output enable/disable (high-impedance tristate) and device reset ...

Page 4

... V CC ±20 mA ±50 mA °C 125 Max Unit Condition V + 0.3 V LVCMOS CC 0.8 V LVCMOS mV LVPECL V – 0.6 V LVPECL – Ω ±200 µ Pin CC_PLL 10 mA All V Pins CC = -20 mA and V > Advanced Clock Drivers Device Data Freescale Semiconductor (2) or GND range CMR ...

Page 5

... Refer to the Application Information section for part-to-part skew calculation in PLL zero-delay mode. 12. For a specified temperature and voltage, includes output skew. 13. I/O phase jitter is reference frequency dependent. Refer to 14. –3 dB point of PLL transfer characteristics. Advanced Clock Drivers Device Data Freescale Semiconductor (1) = 0°C to 70°C) A Min (2) ÷ ...

Page 6

... REF ÷ – 50 MHz n/a ÷ – 25 MHz n 125 MHz REF VCO 25 to 62.5 MHz REF VCO and the filter capacitor C F Figure 3, the filter cut-off frequency is around Advanced Clock Drivers Device Data Freescale Semiconductor ⋅ 4 REF ⋅ 8 REF are F ...

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 referred to Freescale Semiconductor application note AN1091. In most high performance clock networks point-to-point distribution of signals is the method of choice point-to-point scheme either series terminated or parallel terminated transmission lines can be used ...

Page 8

... Figure 9. MPC9653A AC Test Reference OutA OutB t = 3.8956 3.9386 Time (ns) Figure 8, should be used. In this case the series MPC9653A Output Ω Ω Buffer S 14 Ω Ω Ω Ω Ω Ω Ω Ω 25 Ω Ω Ω Ω Advanced Clock Drivers Device Data Freescale Semiconductor 12 14 ...

Page 9

... Figure 12. Output Duty Cycle (DC) T JIT(CC N+1 The variation in cycle time of a signal between adjacent cycles, over a random sample of adjacent cycle pairs Figure 14. Cycle-to-Cycle Jitter Advanced Clock Drivers Device Data Freescale Semiconductor V CC ÷ PCLK GND V CC PCLK ÷ 2 ...

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 MPC9653A 11 ...

Page 12

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

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