IDT5T995PFI Integrated Device Technology, Inc., IDT5T995PFI Datasheet

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IDT5T995PFI

Manufacturer Part Number
IDT5T995PFI
Description
Manufacturer
Integrated Device Technology, Inc.
Datasheet

Specifications of IDT5T995PFI

Case
TQFP
Dc
03+

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Part Number:
IDT5T995PFI
Manufacturer:
ALTERA
0
FEATURES:
• Ref input is 3.3V tolerant
• 4 pairs of programmable skew outputs
• Low skew: 185ps same pair, 250ps all outputs
• Selectable positive or negative edge synchronization:
• Synchronous output enable
• Input frequency:
• Output frequency:
• 3-level inputs for skew and PLL range control
• 3-level inputs for feedback divide selection multiply / divide
• PLL bypass for DC testing
• External feedback, internal loop filter
• 12mA balanced drive outputs
• Low Jitter: <100ps cycle-to-cycle
• Power-down mode
• Lock indicator
• Standard and A speed grades
• Available in TQFP package
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
IDT5T995/A
2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II
c
Excellent for DSP applications
– Std: 2MHz to 160MHz
– A: 2MHz to 200MHz
– Std: 6MHz to 160MHz
– A: 6MHz to 200MHz
ratios of (1-6, 8, 10, 12) / (2, 4)
2006
Integrated Device Technology, Inc.
DS1:0
1F1:0
2F1:0
3F1:0
4F1:0
REF
FB
2.5V PROGRAMMABLE
SKEW PLL CLOCK DRIVER
TURBOCLOCK™ II
3
/ N
PD
3
1
DESCRIPTION:
for high performance computing and data-communications applications. A
key feature of the programmable skew is the ability of outputs to lead or lag
the REF input signal. The IDT5T995 has eight programmable skew outputs
in four banks of 2. Skew is controlled by 3-level input signals that may be
hard-wired to appropriate high-mid-low levels.
the use of the DS[1:0] inputs. This provides the user with frequency
multiplication from 1 to 12 without using divided outputs for feedback.
However, if sOE is held high, all the outputs except 2Q0 and 2Q1 are
synchronously disabled. The LOCK output asserts to indicate when Phase
Lock has been achieved.
the positive edge of the REF clock input. When PE is held low, all the outputs
are synchronized with the negative edge of REF. The IDT5T995 has
LVTTL outputs with 12mA balanced drive outputs.
The IDT5T995 is a high fanout 2.5V PLL based clock driver intended
The feedback input allows divide-by-functionality from 1 to 12 through
When the sOE pin is held low, all the outputs are synchronously enabled.
Furthermore, when PE is held high, all the outputs are synchronized with
PE
TEST
3
3
3
3
3
3
3
3
3
Select
Select
Select
Select
Skew
Skew
Skew
Skew
PLL
FS
3
LOCK
sOE
INDUSTRIAL TEMPERATURE RANGE
1Q
1Q
2Q
2Q
3Q
3Q
4Q
4Q
0
1
0
1
0
1
0
1
DECEMBER 2006
IDT5T995/A
DSC 5850/7

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IDT5T995PFI Summary of contents

Page 1

... Low Jitter: <100ps cycle-to-cycle • Power-down mode • Lock indicator • Standard and A speed grades • Available in TQFP package FUNCTIONAL BLOCK DIAGRAM The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE c 2006 Integrated Device Technology, Inc. 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK™ ...

Page 2

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II PIN CONFIGURATION sOE DDQ V DDQ GND ...

Page 3

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II PROGRAMMABLE SKEW Output skew with respect to the REF input is adjustable to compensate for PCB trace delays, backplane propagation delays or to accommodate requirements for special timing relationships between clocked ...

Page 4

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II DIVIDE SELECTION TABLE 1 NOTE: 1. Permissible output division ratios connected to FB. The frequency ...

Page 5

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Symbol Parameter V Input HIGH Voltage IH V Input LOW Voltage IL V Input HIGH Voltage (1) IHH V Input MID Voltage (1) IMM V ...

Page 6

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II INPUT TIMING REQUIREMENTS Symbol Maximum input rise and fall times, 0. Input clock pulse, HIGH or LOW PWC D Input duty cycle H ...

Page 7

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II SWITCHING CHARACTERISTICS OVER OPERATING RANGE Symbol Parameter F VCO Frequency Range NOM t REF Pulse Width HIGH (1) RPWH t REF Pulse Width LOW (1) RPWL t Programmable Skew Time Unit ...

Page 8

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II AC TEST LOADS AND WAVEFORMS Output For LOCK output V Output 20pF t ORISE t 1.7V PWH V = 1.25V TH t 0.7V PWL 2.5V Output Waveform ≤1ns 2.5V 1.7V = ...

Page 9

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II AC TIMING DIAGRAM REF φ OTHER Q INVERTED Q REF DIVIDED BY 2 REF DIVIDED BY 4 NOTES: PE: The AC Timing Diagram applies to PE=V of ...

Page 10

IDT5T995/A 2.5V PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK II ORDERING INFORMATION IDT XXXXX XX Package Device Type CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 X Package I PF PFG 5T995 5T995A for SALES: 800-345-7015 or 408-284-8200 ...

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