IDT5T9302PGI IDT, Integrated Device Technology Inc, IDT5T9302PGI Datasheet

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IDT5T9302PGI

Manufacturer Part Number
IDT5T9302PGI
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Driverr
Datasheet

Specifications of IDT5T9302PGI

Number Of Clock Inputs
2
Mode Of Operation
Differential
Output Frequency
450MHz
Output Logic Level
LVDS
Operating Supply Voltage (min)
2.3V
Operating Supply Voltage (typ)
2.5V
Operating Supply Voltage (max)
2.7V
Package Type
TSSOP
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization and/or qualification.
Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
2.5V LVDS, 1:2 CLOCK BUFFER
TERABUFFER™ II
General Description
The IDT5T9302 2.5V differential clock buffer is a user-selectable
differential input to two LVDS outputs. The fanout from a
differential input to two LVDS outputs reduces loading on the
preceding driver and provides an efficient clock distribution
network. The IDT5T9302 can act as a translator from a differential
HSTL, eHSTL, LVEPECL (2.5V), LVPECL (3.3V), CML, or LVDS
input to LVDS outputs. A single-ended 3.3V / 2.5V LVTTL input
can also be used to translate to LVDS outputs. The redundant
input capability allows for an asynchronous change-over from a
primary clock source to a secondary clock source. Selectable
reference inputs are controlled by SEL.
The IDT5T9302 outputs can be asynchronously enabled/disabled.
When disabled, the outputs will drive to the value selected by the
GL pin. Multiple power and grounds reduce noise.
Applications
Pin Assignment
IDT™ LVDS CLOCK BUFFER TERABUFFER™ II
Clock distribution
4.4mm x 6.5mm x 1.0mm package body
GND
GND
20-Lead TSSOP
SEL
V
V
PD
Q1
Q1
DD
DD
nc
G
G Package
Top View
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
A2
GND
Q2
A1
A2
V
Q2
V
A1
DD
DD
1
Features
Guaranteed low skew: 5ps (typical)
Very low duty cycle distortion: 20ps (typical)
High speed propagation delay: 1.35ns (typical)
Up to 450MHz operation
Selectable inputs
Hot insertable and over-voltage tolerant inputs
3.3V/2.5V LVTTL, HSTL eHSTL, LVEPECL (2.5V), LVPECL
(3.3V), CML or LVDS input interface
Selectable differential inputs to two LVDS outputs
Power-down mode
2.5V V
-40°C to 85°C ambient operating temperature
Available in TSSOP package
DD
IDT5T9302 REV. A APRIL 29, 2008
PRELIMINARY
IDT5T9302

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IDT5T9302PGI Summary of contents

Page 1

LVDS, 1:2 CLOCK BUFFER TERABUFFER™ II General Description The IDT5T9302 2.5V differential clock buffer is a user-selectable differential input to two LVDS outputs. The fanout from a differential input to two LVDS outputs reduces loading on the preceding driver ...

Page 2

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Block Diagram SEL IIDT™ LVDS CLOCK BUFFER TERABUFFER™ PRELIMINARY OUTPUT CONTROL OUTPUT CONTROL IDT5T9302 REV. A APRIL 29, 2008 Q1 Q1 ...

Page 3

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Table 1. Pin Descriptions Name Type A[1:2] Input Adjustable A[1:2] Input Adjustable G Input LVTTL GL Input LVTTL Q[1:2] Output LVDS Q{1:2} Output LVDS SEL Input LVTTL PD Input LVTTL V Power ...

Page 4

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Function Tables Table 3A. Gate Control Output Table Control Output GL G Q[1: Toggling 0 1 LOW 1 0 Toggling 1 1 HIGH Table 3B. Input Selection Table Selection SEL ...

Page 5

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ Electrical Characteristics Table 4A. LVDS Power Supply DC Characteristics Symbol Parameter I Quiescent V Power Supply Current DDQ DD I Total Power V Supply Current TOT DD I Total Power Down ...

Page 6

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Table 4D. LVDS DC Characteristics Symbol Parameter Differential Output Voltage for the V OT(+) True Binary State Differential Output Voltage for the V OT(–) False Binary State Change in V Between ∆V ...

Page 7

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Table 5B. eHSTL AC Differential Input Characteristics, T Symbol Parameter (1) V Input Signal Swing DIF V Differential Input Signal Crossing Point X D Duty Cycle H V Input Timing Measurement Reference ...

Page 8

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Table 5D. LVDS Differential Input AC Characteristics, T Symbol Parameter (1) V Input Signal Swing DIF V Differential Input Cross Point Voltage X D Duty Cycle H V Input Timing Measurement Reference ...

Page 9

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II (1,5) Table 5E. AC Characteristics Symbol Parameter tsk(o) Same Device Output Pin-to-Pin Skew (3) tsk(p) Pulse Skew (4) tsk(pp) Part-to-Part Skew tp Propagation Delay, Low-to-High LH tp Propagation Delay, High-to-Low HL (6) ...

Page 10

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Differential AC Timing Waveforms Output Propagation and Skew Waveforms 1/ [1:2] [1:2] t PLH SK( NOTE 1: Pulse skew is calculated using ...

Page 11

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Power Down Timing NOTE recommended that outputs be disabled before entering power-down mode. It ...

Page 12

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Test Circuit for Differential Input V Pulse Generator V Table 6A. Differential Input Test Conditions Symbol V = 2.5V ± 0. Crossing of A and A THI IIDT™ LVDS CLOCK ...

Page 13

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Test Circuit for DC Outputs and Power Down Tests V A Pulse Generator D.U.T. A Test Circuit for Propagation, Skew, and Gate Enable/Disable Timing A Pulse Generator A Table 6B. Differential Input ...

Page 14

... LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Ordering Information XX IDT XXXXX Package Device Type Table 7. Ordering Information Part/Order Number Marking 5T9302PGI IDT5T9302PGI 5T9302PGI8 IDT5T9302PGI 5T9302PGGI IDT5T9302PGGI 5T9302PGGI8 IDT5T9302PGGI IIDT™ LVDS CLOCK BUFFER TERABUFFER™ Process I PG PGG 5T9302 Package 20 Lead TSSOP 20 Lead TSSOP “ ...

Page 15

IDT5T9302 2.5V LVDS 1:2 CLOCK BUFFER TERABUFFER™ II Contact Information: www.IDT.com Sales 800-345-7015 (inside USA) +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT © 2008 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the ...

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