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Número de pieza | QS532806 | |
Descripción | Guaranteed Low Skew 3.3V CMOS Clock Driver/buffer | |
Fabricantes | Integrated Device Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de QS532806 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
No Preview Available ! QS532806/A
GUARANTEED LOW SKEW 3.3V CMOS CLOCK DRIVER/BUFFER
GUARANTEED LOW SKEW
3.3V CMOS CLOCK
DRIVER/BUFFER
INDUSTRIAL TEMPERATURE RANGE
QS532806/A
FEATURES:
− JEDEC compatible LVTTL level
− 10 low skew clock outputs
− Monitor output
− Clock inputs are 5V tolerant
− Pinout and function compatible with QS5806
− 25Ω on-chip resistors for low noise
− Input hysteresis for better noise margin
− Guaranteed low skew:
• 0.7ns output skew (same bank)
• 0.9ns output skew (different bank)
• 1ns part-to-part skew
− Std. and A speed grades
− Available in QSOP and SOIC packages
DESCRIPTION
The QS532806 clock driver/buffer circuit can be used for clock buffering
schemes where low skew is a key parameter. The QS532806 offers two
banks of five inverting outputs. Designed in IDT's proprietary CMOS
process, these devices provide low propagation delay buffering with on-
chip skew of 0.7ns for same-transition, same-bank signals.
The QS532806 has on-chip series termination resistors for lower noise
clock signals. The series resistor versions are recommended for driving
unterminated lines with capacitive loading and other noise sensitive clock
distribution circuits. These clock buffer products are designed for use in
high-performance workstations, embedded and personal computing sys-
tems. Several devices can be used in parallel or scattered throughout a
system for guaranteed low skew, system-wide clock distribution networks.
FUNCTIONAL BLOCK DIAGRAM
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OEA
IN A
IN B
OEB
5
OA5 - OA1
MON
5
OB5 - OB1
INDUSTRIAL TEMPERATURE RANGE
c 1999 Integrated Device Technology, Inc.
1
SEPTEMBER 2000
DSC-5783/-
1 page QS532806/A
GUARANTEED LOW SKEW 3.3V CMOS CLOCK DRIVER/BUFFER
TEST CIRCUITS AND WAVEFORMS
Pulse
Generator
VIN
50Ω
VCC
DUT
VOUT
50pF
INDUSTRIAL TEMPERATURE RANGE
Parameter
Tested
tPLZ, tPZL
All Others
Switch
Position
Closed
Open
500Ω
6.0 V
500Ω
Pulse generator for all pulses: f ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns
INPUT
OUPUT
tPLH
tPHL
tR
PROPAGATION DELAY
tF
3V
1.5V
0V
VOH
2.0V
1.5V
0.8V
VOL
IN PU T
OUPUT 1
tPLH1
tPHL1
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OUPUT 2
tS K( 0 1 )
tS K( 0 1 )
tPLH2
tPHL2
tSK(01) = tPLH2 - tPLH1 or tPHL2 - tPHL1
OUTPUT SKEW (SAME BANK) — tSK(O1)
3V
1.5V
0V
VOH
1.5V
VOL
VOH
1.5V
VOL
INPUT
OUPUT
tPLH
tPHL
tSK(p) = tPHL - tPLH
PULSE SKEW — tSK(P)
3V
1.5V
0V
VOH
1.5V
VOL
INPUT
OUPUT A
tP L HA
tPHLA
OUPUT B
tS K( 0 2 )
tSK(02)
tPLHB
tPHLB
tSK(02) = tPLHB - tPLHA or tPHLB - tPHLA
OUPUT SKEW (DIFFERENT BANKS) — tSK(O2)
3V
1.5V
0V
VOH
1.5V
VOL
VOH
1.5V
VOL
CONTROL
INPUT
OUTPUT
NORMALLY
LOW
OUTPUT
NORMALLY
HIG H
ENABLE
tPZL
SWITCH
CLOSED
tPZH
SWITCH
OPEN
1.5V
1.5V
DISABLE
tP L Z
tPHZ
3V
1.5V
0V
3V
0.3V VOL
0.3V VOH
0V
ENABLE AND DISABLE TIMES
INPUT
PART 1 OUTPUT
PART 2 OUTPUT
5
tPLH1
tPHL1
tSK(t)
tSK(t)
tPLH2
tPHL2
tSK(t) = tPLH2 - tPLH1 or tPHL2 - tPHL1
PART-TO-PART SKEW — tSK(T)
3V
1.5V
0V
VOH
1.5V
VOL
VOH
1.5V
VOL
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet QS532806.PDF ] |
Número de pieza | Descripción | Fabricantes |
QS532805 | GUARANTEED LOW SKEW 3.3V CMOS CLOCK DRIVER/BUFFER | Integrated Device Technology |
QS532805A | GUARANTEED LOW SKEW 3.3V CMOS CLOCK DRIVER/BUFFER | Integrated Device Technology |
QS532805B | GUARANTEED LOW SKEW 3.3V CMOS CLOCK DRIVER/BUFFER | Integrated Device Technology |
QS532806 | Guaranteed Low Skew 3.3V CMOS Clock Driver/buffer | Integrated Device Technology |
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