P123-08H PhaseLink Corp., P123-08H Datasheet

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P123-08H

Manufacturer Part Number
P123-08H
Description
3.3v Zero Delay Buffer
Manufacturer
PhaseLink Corp.
Datasheet
1.P123-08H.pdf (10 pages)
FEATURES
•
•
•
•
•
•
•
•
•
BLOCK DIAGRAM
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 7/19/07 Page 1
Zero input-output propagation delay, adjustable by
capacitive load on FBK input
Multiple configurations, see “Available Configura-
tions” table
Multiple low-skew outputs
Two banks of four outputs, three-stateable by two
select inputs
10 MHz to 134 MHz operating range
Low cycle-to-cycle jitter
16 pin SOP or TSSOP packages
3.3V operation
Commercial and industrial temperature available
REF
S1
S2
PLL
Decoding
Selector
(-082, -083)
Divider
Extra
Mux
/2
/2
`
Extra Divider (-083)
DESCRIPTION
The PL123-08 is a PLL-based zero-delay buffer family,
used to distribute up to eight outputs. Select inputs S2
and S1 control the state of the two output banks.
An external feedback pin enables removing delay from
external components. It also provides adjustable input-
to-output delay by varying its loading relative to the
output pin loading.
Various options are available to multiply the input fre-
quency by 0.5, 1, 2, or 4x (see the Available Configura-
tion table for details). Standard (8 mA) and High (12
mA) drive strengths may also be ordered. In the spe-
cial case when S2:S1 is 1:0, the PLL is bypassed and
REF is output from DC to the maximum frequency, thus
behaving like a (non-zero delay) fan-out buffer.
These parts are not intended for 5V input-tolerant ap-
plications.
FBK
CLKA1
CLKA2
CLKA3
CLKA4
CLKB1
CLKB2
CLKB3
CLKB4
(Preliminary)
3.3V Zero Delay Buffer
CLKA1
CLKA2
CLKB1
CLKB2
GND
VDD
REF
S2
1
2
3
4
5
6
7
8
PL123-08
16
15
14
13
12
11
10
9
FBK
CLKA4
CLKA3
VDD
GND
CLKB4
CLKB3
S1

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P123-08H Summary of contents

Page 1

FEATURES • Zero input-output propagation delay, adjustable by capacitive load on FBK input • Multiple configurations, see “Available Configura- tions” table • Multiple low-skew outputs • Two banks of four outputs, three-stateable by two select inputs • 10 MHz to ...

Page 2

PIN DESCRIPTION Pin Name Type 1 REF I [1] 2 CLKA1 O [2] 3 CLKA2 O [2] 4 VDD P 5 GND P 6 CLKB1 O [2] 7 CLKB2 [3] 10 ...

Page 3

ZERO-DELAY AND SKEW CONTROL The PLL’s feedback path must be closed by connecting FBK to one of the available eight outputs. The output driv- ing the FBK pin will drive an (internal) output pin load of 7pF plus any additional ...

Page 4

LAYOUT RECOMMENDATIONS The following guidelines are to assist you with a performance optimized PCB design: Signal Integrity and Termination Considerations - Keep traces short - Trace = Inductor. With a capacitive load, equals ringing - Long trace = Transmission Line. ...

Page 5

ELECTRICAL C HARACTERISTICS Parameter Description VIL Input LOW Voltage VIH Input HIGH Voltage IIL Input LOW Current IIH Input HIGH Current VOL Output LOW Voltage VOH Output HIGH Voltage IDD (PD Power Down Supply mode) Current Supply Current IDD (Unloaded ...

Page 6

SWITCHING CHARACTERISTICS Pa- Name rame- t Output Frequency 1 t Output Frequency 1 t Output Frequency 1 Duty Cycle = t2 ÷ t1 [7] Duty Cycle = t2 ÷ t1 [7] Rise Time [ (–08, –082, –083) t ...

Page 7

SWITCHING WAVEFORMS Duty Cycle Timing All Outputs Rise/Fall Time Output-Output Skew Input-Output Propagation Delay Device-Device Skew 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 7/19/07 Page 1.4V 2.0V OUTPUT 0.8V t ...

Page 8

TEST CIRCUITS Test Circuit #1 VDD 0.1 μF OUTPUTS VDD 0.1 μF GND GND PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT) 16 PIN Narrow SOP, TSSOP ( mm ) SOIC Symbo Max Min 1.3 1 0.1 ...

Page 9

... SOP (Tape and Reel) P123-083 16-Pin SOP Tube P123-083 16-Pin SOP (Tape and Reel) P123-08H 16-Pin TSSOP Tube P123-08H 16-Pin TSSOP (Tape and Reel) Industrial P123-08 16-Pin SOP Tube P123-08 16-Pin SOP (Tape and Reel) P123-08H 16-Pin SOP Tube P123-08H 16-Pin SOP (Tape and Reel) ...

Page 10

... SOP (Tape and Reel) P123-083 16-Pin SOP Tube P123-083 16-Pin SOP (Tape and Reel) P123-08H 16-Pin TSSOP Tube P123-08H 16-Pin TSSOP (Tape and Reel) Industrial P123-08 16-Pin SOP Tube P123-08 16-Pin SOP (Tape and Reel) P123-08H 16-Pin SOP Tube P123-08H 16-Pin SOP (Tape and Reel) ...

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