Silicon Labs Most Popular Clock Buffers
Key Questions
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Output Format?
Jitter Spec?
Buffer Type?
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What Output Format?
Differential
Differential/Mixed Mode
PCIe/HCSL
Single-ended only
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What Jitter Spec/
Performance?
<200 fs RMS Jitter
<1 ps RMS Jitter
>1 ps RMS Jitter
PCIe Gen 1/2/3
What Buffer Type?
Fanout
Buffer
Si533xx
Si5330
Zero Delay
Buffer (ZDB)
See Back Page:
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# of Outputs?
Frequency?
VDD/VDDO?
PCIe/
HCSL
Differential
Differential/Mixed
<200 fs
(V
DD
level and
format translation)
Additive
Jitter
<200 fs
<1 ps
(Zero Delay Mode)
Si5338
Format
Gen 1/2/3
Si53102/5x
SL1886x
Si531xx
<200 fs
(TCXO Buffer)
Single-ended
(LVCMOS)
Additive
Jitter
Si53360/5
SL23EP0xNZ
(10 - 220 MHz)
<1 ps
<1 ps
SL23EP0x
(10 - 220 MHz)
SL230xNZ
(10 - 140 MHz)
(10 - 140 MHz)
SL230x
Order parts, find support, white papers and data sheets at
www.silabs.com/timing
Price/Performance
<200 fs
Single-ended (LVCMOS) Clock Buffer
Parameter
SL23EP04
PCIe Buffer
TCXO
Buffer
Si53360/5
2/1
8/8
1 - 200
1 - 200
SL18860
1
3
10 - 52
10 - 52
Zero Delay Buffer
SL2305/
SL23EP05
1
5
10 - 140/
10 - 220
10 - 140/
10 - 220
150 ps
SL23EP08
1
8
10 - 220
10 - 220
200 ps
SL2309/
SL23EP09
1
9
10 - 140/
10 - 220
10 - 140/
10 - 220
15 ps/
200 ps
0.7 ps
LVPECL/
LVDS/HCSL/
SSTL/HSTL/
LVCMOS
Fanout Buffer
Si5338
1
4
up to 710
up to 710
SL2304NZ/
SL23EP04NZ
Fanout
Si53102/
Si53154/6/9
Zero
Delay
(Intel)
Si53106/08/
12/15/19
Differential/
Mixed Mode
Clock Buffer
Si5330
1
4/8
up to 710
up to 710
Si533xx
2
up to 10
up to 1250
up to 1250
SL2305NZ
SL23EP09NZ
Clock Inputs
Clock Outputs
Input
Frequencies (MHz)
Output
Frequencies (MHz)
Cycle-to-Cycle Jitter
RMS Additive Jitter
Output Format
VDD (V)
VDDO (V)
1
4
10 - 220
10 - 220
10 ps
1
4
10 - 52
0 - 140/
0 - 220
1
5
0 - 140
0 - 140
1
9
0 - 220
0 - 220
1
2/4/6/9
10 - 175/
100 - 210
10 - 175/
100 - 210
PCIe
Gen 1/2/3
1
6/8/12/
15/19
100, 133
100, 133
PCIe
Gen 1/2/3
PCIe
Gen 1/2/3
HCSL
0.5 ps
0.5 ps
0.5 ps
150 fs
150 fs
PCIe
Gen 1/2/3
HCSL
150 fs
LVPECL/
LVDS/HCSL/
SSTL/HSTL/
LVCMOS
45 fs
LVPECL/
LVDS/HCSL/
SSTL/HSTL/
LVCMOS
LVCMOS
LVCMOS
3.3;
2.5/3.3
LVCMOS
LVCMOS
3.3;
2.5/3.3
LVCMOS
3.3;
2.5/3.3
LVCMOS
LVCMOS
LVCMOS
LVCMOS
2.5/3.3
2.5/3.3
1.8/2.5/3.3
1.8/2.5/3.3
3.3
2.5/3.3
1.8/2.5/3.3
1.8/2.5/3.3
3.3
3.3
1.05 - 3.3
1.8/2.5/3.3
1.5/1.8/
2.5/3.3
1.8/2.5/3.3
1.8/2.5/3.3
QFN16/
QFN32/
QFN44/
TSSOP16/
TSSOP20
Package(s)
SOIC8
SOIC8/
TSSOP8
SOIC16/
TSSOP16
SOIC16/
TSSOP16
QFN24
TSSOP8
SOIC8
SOIC16
TSSOP16
TDFN10
TDFN8/
QFN24/
QFN32/
QFN48
QFN40/
QFN48/
QFN64/
QFN72
QFN24
SpreadThru
1
OE Control/I
2
C
Clock Division
Industrial
Temperature
Competitive
Footprint Comp
4
x/2, 2x
2
x/2, 2x,
4x
3
1
1
1
3
4/6/9
6/8/12/I
2
C
1
2
x/2, x/4
* 1. Spread Spectrum clock pass trhough. 2. SL23EP04-2 supports clock division/multiplication. 3. SL23EP08-2/-3 support clock division/multiplication. 4. Contact Silicon Labs for information
Lower Cost
Higher Performance
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Order parts, find support, white papers and data sheets at
www.silabs.com/timing
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