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SI5374B-A-GL Datasheet, PDF (6/20 Pages) Silicon Laboratories – Timing Selector Guide
6 / CLOCK AND OSCILLATOR SELECTOR
PCI Express Clock Generators (PCIe)
Silicon Labs offers the lowest power, highest performance PCI-Express clock generators in the market. All devices in the
portfolio feature low power push-pull output buffer technology, providing benefits of low power consumption, reduced
external terminating resistors and smaller packaging. To optimize performance, the devices support programmable drive
strength, rise/fall times and output impedance. Basic HCSL PCIe and high-performance differential clocks and buffers are
available. Support for down spread spectrum clock generation is also provided.
PCIe CLOCK FEATURES
• Full portfolio of PCI Express (PCIe) Gen 1/2/3 clocks
  and buffers
• All products utilize push-pull HCSL output buffers
• Fully integrated termination resistors on
  PCIe outputs
• Low power consumption
• Programmable spread spectrum
• Available hardware strapping pin for spread enable
• I2C/SMBus programmable
• Also supports LVPECL, LVDS, or CML levels
• Industrial temperature grade
• Individual output enable control
• Small form factor QFN packaging
100 MHz HCSL
Si53154
Clock
Generator
100 MHz HCSL
100 MHz HCSL
100 MHz HCSL
100 MHz HCSL
Flash Controller
Flash Controller
Flash Controller
ASIC
NNNANaNaannDnaaaFFFFlllaalaasssshhhh
NNNANaNaannDnaaaFFFFlllaalaasssshhhh
NNNANaNaannDnaaaFFFFlllaalaasssshhhh
CLOCK
PART NUMBER CONTROL INPUT/
OUTPUTS
Si52142
Pin/I2C
1/3
Si52143
Pin/I2C
1/5
Si52144
Pin/I2C
1/4
Si52146
Pin/I2C
1/6
Si52147
Pin/I2C
1/9
SL28SRC01
Pin
1/1
SL28SRC02
Pin
1/2
SL28SRC04
Pin
1/4
Si5334
Pin
1/4
Si5335
Pin
1/4
Si5338
I2C
1/4
INPUT
FREQUENCY
(MHz)
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
14.318 MHz
14.318 MHz
14.318 MHz
5 - 710 (Clock),
8 - 30 (Xtal)
10 - 350 (Clock),
25/27 (Xtal)
5 - 710 (Clock)
8 - 30 (Xtal)
OUTPUT
FREQUENCY
(MHz)
100 MHz, 25 MHz
100 MHz, 25 MHz
100 MHz
100 MHz
100 MHz
100 MHz
100 MHz
100 MHz
0.16 - 710 MHz
1 - 350 MHz
0.16 - 710 MHz
PHASE
JITTER
(RMS)
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
1.0 ps
VDD
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
VDDO
OUTPUT
PACK AGE
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
HSCL, LVCMOS
HSCL, LVCMOS
HSCL
HSCL
HSCL
HCSL
HCSL
HCSL
LVCMOS, LVDS, LVPECL, HCSL,
SSTL, HSTL
LVCMOS, LVDS, LVPECL, HCSL,
SSTL, HSTL, CML
LVPECL, LVDS, LVCMOS, HCSL,
SSTL, HSTL
QFN24
QFN24
QFN24
QFN32
QFN48
TSSOP16
TSSOP20
TSSOP24
QFN24
QFN24
QFN24