PI6C4911506
6 Output High Performance LVPECL Fanout Buffer
Features
ÎÎ
LVPECL outputs
6
ÎÎ
to 1.5GHz output frequency
Up
ÎÎ
Ultra low additive phase jitter: < 0.03 ps
ÎÎ
Single differential input
ÎÎ
Low delay from input to output (Tpd typ. < 800ps)
ÎÎ
2.5V / 3.3V power supply
ÎÎ
Industrial temperature support
ÎÎ
TSSOP-20 package
Description
The PI6C4911506 is a high performance fanout buffer device-
which supports up to 1.5GHz frequency. This device is ideal
for systems that need to distribute low jitter clock signals to
multiple destinations.
(typ) (differential
156.25MHz, 12KHz to 20MHz integration range)
Applications
ÎÎ
Networking systems including switches and Routers
ÎÎ
High frequency backplane based computing and telecom
platforms
Block Diagram
Pin Configuration (20-Pin TSSOP)
REF_IN+
REF_IN-
VBB
CLK0
CLK0#
CLK1
CLK1#
CLK2
CLK2#
CLK3
CLK3#
CLK4
CLK4#
CLK5
CLK5#
VDD
CLK0#
CLK0
CLK1#
CLK1
CLK2#
CLK2
VDD
REF_IN+
REF_IN-
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDD
CLK5
CLK5#
CLK4
CLK4#
CLK3
CLK3#
VDD
VEE
VBB
16-0103
1
www.pericom.com
PI6C4911506
RevC
5/23/2016
6 Output High Performance LVPECL Fanout Buffer
Pinout Table
Pin #
1, 8, 13, 20
2, 3
4, 5
6, 7
9
10
11
12
14, 15
16, 27
18, 19
Pin Name
V
DD
CLK0#, CLK0
CLK1#, CLK1
CLK2#, CLK2
REF_IN+
REF_IN-
V
BB
V
EE
CLK3#, CLK3
CLK4#, CLK4
CLK5#, CLK5
Type
Power
Output
Output
Output
Input
Input
Output
Power
Output
Output
Output
Pulldown
Pull up/ Pull-
down
Description
Power supply
Differential LVPECL output
Differential LVPECL output
Differential LVPECL output
Differential LVPECL input
Differential LVPECL input
Bias Voltage
Negative supply pin
LVPECL output clock
LVPECL output clock
LVPECL output clock
PI6C4911506
Pin Characteristics
Symbol
R
PULLUP
R
PULLDOWN
Parameter
Input Pullup Resistor
Input Pulldown Resistor
Min
Typ
50
75
Max
Units
kΩ
kΩ
16-0103
2
www.pericom.com
PI6C4911506
RevC
5/23/2016
6 Output High Performance LVPECL Fanout Buffer
Maximum Ratings
(Over operating free-air temperature range)
Supply Voltage..........................................................4.6V
Storage Temperature.............................................. -65ºC to+155ºC
Ambient Temperature with Power Applied .........-40ºC to+85ºC
ESD Protection (HBM) ......................................................... 2000V
PI6C4911506
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device. This
is a stress rating only and functional operation of the device
at these or any other conditions above those indicated in
the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
DC Electrical Characteristics
Power Supply DC Characterisitcs,
(T
A
= -40ºC to 85ºC)
Symbol
V
DD
I
EE
I
DD
Parameter
Supply Voltage
Power Supply Current
Power Supply Current
Outputs Unloaded
Outputs Unloaded
Condition
Min
3.0
2.375
Typ
3.3
2.5
71
72
Max
3.6
2.625
95
95
Units
V
mA
mA
LVPECL DC Characteristics,
(T
A
= -40ºC to 85ºC)
Symbol
V
IH
V
IL
I
IH
I
IL
V
PP
V
OH
V
OL
V
SWING
V
BB
V
CMR
Parameter
Input High Voltage
Input Low Voltage
Input High Current
Input Low Current
Input Peak to Peak Voltage
Output High Voltage
Output Low Voltage
Peak to Peak Output Voltage
Output Voltage Reference
Input Common Voltage
Range
Condition
V
DD
= 3.3 V
V
DD
= 2.5 V
V
DD
= 3.3 V
V
DD
= 2.5 V
REF_IN+, REF_IN-
REF_IN+
REF_IN-
V
DD
= 3.3 V
V
DD
= 2.5 V
V
DD
= 3.3 V
V
DD
= 2.5 V
V
DD
= 3.3 V
Min
2.0
1.275
1.43
0.63
-10
-150
150
2.06
1.43
1.32
0.82
625
1.76
1.2
Typ
Max
2.36
Units
V
V
V
V
µA
µA
1.56
1.765
0.965
150
1200
2.54
1.75
1.7
1.02
870
1.98
V
DD
mV
V
V
V
V
mV
V
V
16-0103
3
www.pericom.com
PI6C4911506
RevC
5/23/2016
6 Output High Performance LVPECL Fanout Buffer
AC Electrical Characteristics
AC Characteristics,
(T
A
= -40ºC to 85ºC)
Symbol
F
OUT
T
PD
T
SK(0)
T
SK(P)
T
JITTER
T
R
/T
F
PI6C4911506
Parameter
Output Frequency
Propagation Delay
Output Skew
Part to Part Skew
Additive Jitter
Output Rise/ Fall Time
Condition
V
DD
= 3.3 V
V
DD
= 2.5 V
Min
400
450
Typ
520
560
Max
1.5
800
900
50
230
Units
GHz
ps
ps
ps
ps
ps
ps
0.03
20% to 80%, Freq= 156.25MHz
10% to 90%, Freq = 156.25MHz
100
340
180
500
250
800
16-0103
4
www.pericom.com
PI6C4911506
RevC
5/23/2016
6 Output High Performance LVPECL Fanout Buffer
Propagation Delay and Output Skew
Propagation Delay t
PD
Output Skew t
SK(O)
REF_IN+
REF_IN-
t
PDn
CLKn/
CLKn#
t
SK(O)
t
SK(O)
t
PDn
V
OH
V
OL
V
OH
V
OL
t
PDn+1
t
PDn+1
V
OH
V
OL
PI6C4911506
Part to Part Skew
Part-to-Part Skew t
SK(P)
REF_IN+
REF_IN-
t
PD1
Part1
CLK/CLK#
T
SK
T
SK
t
PD1
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
T
PD2
T
PD2
CLKn+1/
CLKn+1#
Part2
CLK/CLK#
t
SK(O)
= t
PDn+1
- t
PDn
t
SK(P)
= t
PD2
- T
PD1
Output Duty Cycle
Duty Cycle o
DC
t
PW
CLKn/
CLKn#
t
PERIOD
o
DC
= ( t
PW
/ t
PERIOD
) X 100%
V
OH
V
OL
16-0103
5
www.pericom.com
PI6C4911506
RevC
5/23/2016
京公网安备 11010802033920号
EEWORLD
