1PS8589K 11/06/08
Features
•Maximum rated frequency: 140 MHz
•Low cycle-to-cycle jitter
•Input to output delay, less than 150ps
•External feedback pin allows outputs to be synchronized
to the clock input
•5V tolerant CLKIN input
•Operates at 3.3V VDD
•Test mode allows bypass of the PLL for system testing
purposes (e.g., IBIS measurements)
•Clock frequency multipliers ½x to 4x dependent on option
•Packaging (Pb-free and Green available):
-16-pin, 150-mil SOIC (W)
-16-pin 173-mil TSSOP (L)
Description
The PI6C2408 is a PLL-based, zero-delay buffer, with the ability
to distribute eight outputs of up to 140 MHz at 3.3 V. Two banks of
four outputs exist, and, depending on product option ordered, can
supply either reference frequency, prescaled half frequency, or
multiplied 2x or 4x input clock frequencies. The PI6C2408 family has
a power-sparing feature: when input SEL2 is 0, the component will
3-state one or both banks of outputs depending on the state of input
SEL1. A PLL bypass test mode also exists. This product line is
available in high-drive and industrial environment versions.
An external feedback pin is used to synchronize the outputs to the
input; the relationship between loading of this signal and the other
outputs determines the input-output delay.
The PI6C2408 is characterized for both commercial and industrial
operation.
Block Diagram Pin Configuration
Zero-Delay Clock Buffer
PI6C2408
1
2
3
VDD 4
GND 5
OUTA2
6
OUTB2 7
SEL18
OUTB1
FB_IN
OUTA3
VDD
OUTB4
OUTB3
SEL2
16
15
14
13
12
11
10
9
CLKIN
OUTA1
GND
OUTA4
16-Pin
W, L
PLL
Option (-3, -4)
CLKIN
FB_IN
SEL1
SEL2
Decode
Logic
Decode
Logic
OUTA1
OUTA2
OUTA3
OUTA4
OUTB2
OUTB3
OUTB4
OUTB1
PI6C2408 (-1, -1H, -2, -3, -4)
÷2
PLL
CLKIN
FB_IN
SEL2
SEL1
OUTA1
OUTA2
OUTA3
OUTA4
OUTB2
OUTB3
OUTB4
OUTB1
PI6C2408-6
MUX
÷2
÷2
Option (-2, -3)
MUX
MUX
08-0298
2PS8589K 11/06/08
PI6C2408
Zero-Delay Clock Buffer
2LES1LES]4-1[ATUO]4-1[BTUOecruoStuptuOLLP
00 etatS-3etatS-3LLPFFO
01 LLPetatS-3LLPNO
10 NIKLCNIKLCNIKLCFFO
11 LLPLLPLLPNO
Input Select Decoding for PI6C2408 (-1, -1H,-4)
eciveDmorFkcabdeeFycneuqerF]4-1[ATUOycneuqerF]4-1[BTUO
1-8042C6IPBTUOroATUONIKLCNIKLC
H1-8042C6IPBTUOroATUONIKLCNIKLC
2-8042C6IPATUONIKLC2/NIKLC
2-8042C6IPBTUONIKLCX2NIKLC
3-8042C6IPATUONIKLCX2NIKLCroNIKLC
)1(
3-8042C6IPBTUONIKLCX4NIKLCX2
4-8042C6IPBTUOroATUONIKLCX2NIKLCX2
6-8042C6IPATUONIKLC2/NIKLCroNIKLC
6-8042C6IPBTUONIKLCX2roNIKLCNIKLC
PI6C2408 Configurations
2LES1LES]4-1[ATUO]4-1[BTUOecruoStuptuOLLP
00 etatS-3etatS-3LLPFFO
01 NIKLC2/NIKLCNIKLCFFO
10 LLPLLPLLPNO
11 LLP2/LLPLLPNO
Input Select Decoding for PI6C2408-6
Note:
1. Output phase is indeterminant (0° or 180° from CLKIN)
2LES1LES]4-1[ATUO]4-1[BTUOecruoStuptuOLLP
00 etatS-3etatS-3LLPFFO
01 LLPetatS-3LLPNO
10 NIKLC2/NIKLCNIKLCFFO
11 LLPLLPLLPNO
Input Select Decoding for PI6C2408 (-2,-3)
08-0298
3
PI6C2408
Zero-Delay Clock Buffer
PS8589K 11/06/08
The relationship between loading of the FB_IN signal and other outputs determines the input-output delay. Zero delay is achieved when
all outputs, including feedback, are loaded equally.
Zero Delay and Skew Control
CLKIN Input to Output Bank Delay vs. Difference in Loading between FB_IN pin and OUTA/OUTB pins
Maximum Ratings
Supply Voltage to Ground Potential ............................................................................................................................. –0.5V to +7.0V
DC Input Voltage (Except CLKIN) ........................................................................................................................ –0.5V to VDD +0.5V
DC Input Voltage CLKIN ......................................................................................................................................................–0.5 to 7V
Storage Temperature................................................................................................................................................... –65ºC to +150ºC
Maximum Soldering Temperature (10 seconds)...........................................................................................................................260ºC
Junction Temperature ..................................................................................................................................................................150ºC
Static Discharge Voltage (per MIL-STD-883, Method 3015).................................................................................................... >2000V
niPlangiSnoitpircseD
1NIKLC )nwod-llupkaew(ycneuqerfecnereferkcolctupnI
51,41,3,2]4-1[ATUO)nwod-llupkaew(AknaB,tuptuokcolC
31,4V
DD
ylppusV3.3
21,5DNGdnuorG
11,01,7,6]4-1[BTUO)nwod-llupkaew(BknaB,tuptuokcolC
82LES)pu-llupkaew(2tib,tupnitceleS
91LES)pu-llupkaew(1tib,tupnitceleS
61NI_BFtupnikcabdeefLLP
Pin Description
Output Load Difference: FB_IN Load - OUTA/OUTB Load (pF)
CLKIN - Input to OUTA/OUTB Delay (ps)
600
800
400
200
0
-200
-400
-600
-800
-900
-1000
-25 -20 -15 -10 -5 0 5 10 15 20 25
PI6C2408-1H
PI6C2408-1,2,3,4,6
08-0298
4PS8589K 11/06/08
PI6C2408
Zero-Delay Clock Buffer
retemaraPnoitpircseD.niM.xaMstinU
V
DD
egatloVylppuS laicremmoC0.36.3 V
lairtsudnI531.3564.3
T
A
erutarepmeTgnitarepOlaciremmoC007Cº
erutarepmeTgnitarepOlairtsudnI04–58
C
L
zHM001woleb,ecnaticapaCdaoL ⎯03
Fp
zHM041otzHM001morf,ecnaticapaCdaoL ⎯51
C
NI
ecnaticapaCtupnI ⎯7
Operating Conditions
DC Electrical Characteristics for Industrial Temperature Devices
retemaraPnoitpircseDsnoitidnoCtseT.niM.xaMstinU
V
LI
egatloVWOLtupnI 8.0 V
V
HI
egatloVHGIHtupnI 0.2
I
LI
tnerruCWOLtupnIV
NI
=V00.05
μA
I
HI
tnerruCHGIHtupnIV
NI
=V
DD
0.001
V
LO
egatloVWOLtuptuOI
LO
I;)6–,4–,3–,2–,1–(Am8=
LO
)H1–(Am21=4.0 V
V
HO
egatloVHGIHtuptuOI
HO
I;)6–,4–,3–,2–,1–(Am8–=
HO
)H1–(Am21–=4.2
I
DD
)edomDP(tnerruCylppuSnwDrwP)6–(0=2LES;)H1–,4–,3–,2–,1–(0=1LES0.52 μA
I
DD
tnerruCylppuS ,zHM001stuptuodedaolnU VtastupnitceleS
DD
DNGro
0.45
Am
)H1–(0.07
)H1–(tpecxe,NIKLC,zHM66stuptuodedaolnU0.93
)H1–(tpecxe,NIKLC,zHM33stuptuodedaolnU0.02
08-0298
5
PI6C2408
Zero-Delay Clock Buffer
PS8589K 11/06/08
Notes:
1. See Switching Waveforms on page 7.
sretemaraPemaNsnoitidnoCtseT.niM.pyT.xaMstinU
F
O
ycneuqerFtuptuO daolFp03 01 001 zHM
daolFp51041
t
CD
elcyCytuD
)1(
)6–,4–,3–,2–,1–( VtaderusaeM
DD
F,2/
TUO
daolFp03zHM76.66< 04
05
06
%
VtaderusaeM
DD
F,2/
TUO
daolFp51zHM041<
VtaderusaeM
DD
F,2/
TUO
daolFp03zHM54<5455
elcyCytuD
)1(
)H1–( VtaderusaeM
DD
F,2/
TUO
daolFp03zHM76.66<54
VtaderusaeM
DD
F,2/
TUO
daolFp51zHM041<0406
VtaderusaeM
DD
F,2/
TUO
daolFp03zHM54<5455
t
R
emiTesiR
)1(
)6–,4–,2–,1–( daolFp03,V0.2dnaV8.0neewtebderusaeM5.2
sn
daolFp51,V0.2dnaV8.0neewtebderusaeM8.1
emiTesiR
)1(
)H1–(daolFp03,V0.2dnaV8.0neewtebderusaeM6.1
t
F
emiTllaF
)1(
)6–,4–,2–,1–( daolFp03,V0.2dnaV8.0neewtebderusaeM2.2
daolFp51,V0.2dnaV8.0neewtebderusaeM5.1
emiTllaF
)1(
)H1–(daolFp03,V0.2dnaV8.0neewtebderusaeM52.1
t
)O(KS
wekStuptuOottuptuO
)1(
nihtiw
knaBemas dedaolyllauqestuptuollA 052
sp
knaBtuptuOotAknaBtuptuO wekSB
)1(
004
t
0
egdEgnisiRNIKLC,yaleD egdEgnisiRNI_BFot
)1(
VtaderusaeM
DD
2/ 009
t
)D(KS
wekSeciveD-ot-eciveD
)1(
VtaderusaeM
DD
secivedfosnipNI_BFno2/0005
t
WELS
etaRwelStuptuO
)1(
ecivedH1–noV0.2&V8.0neewtebderusaeM 2#trCtseTgnisu 1sn/V
t
TIJ
rettiJelcyC-ot-elcyC
)1(
)4–,H1–,1–( daolFp03dedaol,zHM76.66taderusaeM052
sp
daolFp51dedaol,zHM041taderusaeM051
rettiJelcyC-ot-elcyC
)1(
)6–,2–( daolFp03dedaol,zHM76.66taderusaeM004
t
KCOL
emiTkcoLLLP
)1(
skcolcdilav,ylppusrewopelbatS snipNI_BFdnaNIKLCnodetneserp 0.1sm
AC Electrical Characteristics for Industrial Temperature Devices
08-0298
6PS8589K 11/06/08
PI6C2408
Zero-Delay Clock Buffer
Notes:
1. See Switching Waveforms on page 7.
sretemaraPemaNsnoitidnoCtseT.niM.pyT.xaMstinU
F
O
ycneuqerFtuptuO daolFp0301001 zHM
daolFp51041
t
CD
elcyCytuD
)1(
)H1–(VtaderusaeM
DD
tuptuoevirdhgihrof,2/540555%
elcyCytuD)6–,4–,3–,2–,1–(VtaderusaeM
DD
tuptuoevirdlamronrof,2/040506
t
R
emiTesiR
)1(
Fp03@V0.2dnaV8.0neewtebderusaeM5.2
sn
emiTesiR
)1(
Fp51@V0.2dnaV8.0neewtebderusaeM8.1
emiTesiR
)1(
)H1–(Fp03@V0.2dnaV8.0neewtebderusaeM5.1
t
F
emiTllaF
)1(
Fp03@V0.2dnaV8.0neewtebderusaeM2.2
emiTllaF
)1(
Fp51@V0.2dnaV8.0neewtebderusaeM5.1
emiTllaF
)1(
)H1–(Fp03@V0.2dnaV8.0neewtebderusaeM52.1
t
)O(KS
wekStuptuO-ot-tuptuO
)1(
emasnihtiw
knab V,dedaolyllauqestuptuollA
DD
2/052
sp
BknaBtuptuOotAknaBtuptuO wekS V,dedaolyllauqestuptuollA
DD
2/004
t
0
NIKLC,yaleDtuptuO-ot-tupnI egdEgnisiRNI_BFotegdEgnisiR
)1(
VtaderusaeM
DD
2/009
t
)D(KS
wekSeciveDoteciveD
)1(
VtaderusaeM
DD
secivedfosnipNI_BFno2/0005
t
WELS
etaRwelStuptuO
)1(
H1–noV0.2dnaV8.0neewtebderusaeM 2#tiucriCtseTgnisuecived 1sn/V
t
TIJ
rettiJelcyC-ot-elcyC
)1(
)4–,H1–,1–( stuptuoFp03dedaol,zHM76.66taderusaeM052
sp
stuptuoFp51dedaol,zHM041taderusaeM051
rettiJelcyC-ot-elcyC
)1(
)6–,3–,2–(stuptuoFp03dedaol,zHM7.66taderusaeM004
t
KCOL
emiTkcoLLLP
)1(
skcolcdilav,ylppusrewopelbatS snipNI_BFdnaNIKLCnodetneserp 0.1sm
AC Electrial Characteristics for Commercial Temperature Device
DC Electrical Characteristics for Commercial Temperature Devices
retemaraPnoitpircseDsnoitidnoCtseT.niM.xaMstinU
V
LI
egatloVWOLtupnI ⎯⎯
8.0 V
V
HI
egatloVHGIHtupnI ⎯0.2 ⎯
I
LI
tnerruCWOLtupnIV
NI
=V0⎯05 μA
I
HI
tnerruCHGIHtupnIV
NI
=V
DD
⎯001
V
LO
egatloVWOLtuptuOI
LO
I;)6–,4–,3–,2–,1–(Am8=
LO
)H1–(Am21= ⎯4.0 V
V
HO
egatloVHGIHtuptuOI
HO
I;)6–,4–,3–,2–,1–(Am8–=
HO
)H1–(Am21–=4.2 ⎯
I
DD
)edomDP(tnerruCylppuSnwoDrewoP)6-(0=2LES;)H1-,4-,3-,2-,1-(0=1LES ⎯21 μA
I
DD
tnerruCylppuSVtastupnitceleS,zHM76.66,stuptuodedaolnU
DD
DNGro ⎯93 Am
I
DD
tnerruCylppuSV@stupnItceleSzHM001stuptuodedaolnU
DD
DNGro ⎯45
08-0298
7
PI6C2408
Zero-Delay Clock Buffer
PS8589K 11/06/08
Switching Waveforms
tLOW
tHIGH
VDD/2 VDD/2VDD/2
tF
tR
0.8V
2.0V
0.8V
2.0V
OUTPUT 0V
3.3V
VDD/2
VDD/2
VDD/2
VDD/2
VDD/2
VDD/2
tSK(O)
OUTPUT
OUTPUT
t0
INPUT
FB_IN
tSK(D)
OUTPUT Device 1
OUTPUT Device 2
Duty Cycle Timing
All Outputs Rise/Fall Time
Output-Output Skew
Input-Output Propagation Delay
Device-Device Skew
tDC = tHIGH
tLOW
tHIGH +
VDD
CLOAD
VDD
GND GND
CLK out
OUTPUTS
Test Circuit 1 Test Circuit 2
0.1μF
0.1μF
Test Circuit for all parameters except tSLEW
VDD
10pF
VDD
GND GND
CLK out
OUTPUTS
0.1μF
0.1μF
Test Circuit for tSLEW ,Output slew rate on –1H device
1kW
1kW
08-0298
8PS8589K 11/06/08
PI6C2408
Zero-Delay Clock Buffer
1
SEATING PLANE
.050
BSC
1
16
Û
.149
.157
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
3.78
3.99
.386
.393
9.80
10.00
1.27
.053
.068
1.35
1.75
.2284
.2440
5.80
6.20
.0040
.0098
0.10
0.25
.013
.020
.0155
.0260
0.330
0.508
0.393
0.660
.0075
.0098
0.25
0.50
.0099
.0196
[Û
0.19
0.25
.016
.050
0.41
1.27
REF
DESCRIPTION: 16-Pin, 150-Mil Wide, SOIC
PACKAGE CODE: W
DOCUMENT CONTROL NO.
PD - 1004
REVISION: E
DATE: 03/09/05
Notes:
1) Controlling dimensions in millimeters.
2) Ref: JEDEC MS-012D/AC
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
16-Pin SOIC (W) Package
08-0298
9
PI6C2408
Zero-Delay Clock Buffer
PS8589K 11/06/08
1
DESCRIPTION: 16-Pin, 173-Mil Wide, TSSOP
PACKAGE CODE: L
DOCUMENT CONTROL NO.
PD - 1310
REVISION: E
DATE: 03/09/05
Note:
1. Package Outline Exclusive of Mold Flash and Metal Burr
2. Controlling dimentions in millimeters
3. Ref: JEDEC MO-153F/AB
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
.193
.201
.047
max.
.002
.006
SEATING
PLANE
.0256
BSC
.018
.030
.004
.008
.252
BSC
1
16
.169
.177
0.05
0.15
6.4
0.45
0.75
0.09
0.20
4.3
4.5
1.20
4.9
5.1
0.65 0.19
0.30
.007
.012
16-Pin TSSOP (L) Package
08-0298
10 PS8589K 11/06/08
PI6C2408
Zero-Delay Clock Buffer
Ordering Information (Commercial Temperature Device)
Ordering Code Package Description Operating Range
PI6C2408-1WE W Pb-free & Green, 16-pin 150-mil SOIC Commercial
PI6C2408-1HWE W Pb-free & Green, 16-pin 150-mil SOIC Commercial
PI6C2408-2WE W Pb-free & Green, 16-pin 150-mil SOIC Commercial
PI6C2408-3W W 16-pin 150-mil SOIC Commercial
PI6C2408-3WE W Pb-free & Green, 16-pin 150-mil SOIC Commercial
PI6C2408-4W W 16-pin 150-mil SOIC Commercial
PI6C2408-4WE W Pb-free & Green, 16-pin 150-mil SOIC Commercial
PI6C2408-1WE W Pb-free & Green 16-pin 150-mil SOIC Commercial
PI6C2408-1HWE W Pb-free & Green 16-pin 150-mil SOIC Commercial
PI6C2408-1LE L Pb-free & Green, 16-pin 173-mil TSSOP Commercial
PI6C2408-1HLE L Pb-free & Green, 16-pin 173-mil TSSOP Commercial
PI6C2408-4LE L Pb-free & Green, 16-pin 173-mil TSSOP Commercial
PI6C2408-1LE L Pb-free & Green 16-pin 173-mil TSSOP Commercial
PI6C2408-1HLE L Pb-free & Green 16-pin 173-mil TSSOP Commercial
PI6C2408-1HLEX L Pb-free & Green, 16-pin 173-mil TSSOP Commercial
08-0298
11
PI6C2408
Zero-Delay Clock Buffer
PS8589K 11/06/08
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
Ordering Information (Industrial Temperature Device)
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. E = Pb-free and Green
3. Adding an X suffix = Tape/Reel
Ordering Code Package Description Operating Range
PI6C2408-1WIE W Pb-free & Green, 16-pin 150-mil SOIC Industrial
PI6C2408-1HWIE W Pb-free & Green, 16-pin 150-mil SOIC Industrial
PI6C2408-2WE W Pb-free & Green, 16-pin 150-mil SOIC Commercial
PI6C2408-2WIE W Pb-free & Green, 16-pin 150-mil SOIC Industrial
PI6C2408-3WIE W Pb-free & Green, 16-pin 150-mil SOIC Industrial
PI6C2408-4WIE W Pb-free & Green, 16-pin 150-mil SOIC Industrial
PI6C2408-1LI L 16-pin 173-mil TSSOP Industrial
PI6C2408-1LIE L Pb-free & Green, 16-pin 173-mil TSSOP Industrial
08-0298
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Pericom:
PI6C2408-1LIEX PI6C2408-1WEX PI6C2408-4LEX