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Si5342 Datasheet Preview

Si5342 Datasheet

Any-Output Jitter Attenuator/Clock Multiplier

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Si5345/44/42 Rev D Data Sheet
10-Channel, Any-Frequency, Any-Output Jitter Attenua-
tor/Clock Multiplier
These jitter attenuating clock multipliers combine fourth-generation DSPLLand
MultiSynthtechnologies to enable any-frequency clock generation and jitter attenu-
ation for applications requiring the highest level of jitter performance. These devices
are programmable via a serial interface with in-circuit programmable non-volatile
memory (NVM) so they always power up with a known frequency configuration. They
support free-run, synchronous, and holdover modes of operation, and offer both
automatic and manual input clock switching. The loop filter is fully integrated on-chip,
eliminating the risk of noise coupling associated with discrete solutions. Furthermore,
the jitter attenuation bandwidth is digitally programmable, providing jitter perform-
ance optimization at the application level. Programming the Si5345/44/42 is easy
with Silicon Labs’ ClockBuilder Prosoftware. Factory preprogrammed devices are
also available.
Applications:
• OTN muxponders and transponders
• 10/40/100 G networking line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• SONET/SDH line cards
• Broadcast video
• Test and measurement
• ITU-T G.8262 (SyncE) compliant
25-54 MHz XTAL
KEY FEATURES
• Generates any combination of output
frequencies from any input frequency
• Ultra-low jitter of 90 fs rms
• External Crystal: 25 to 54 MHz
• Input frequency range
• Differential: 8 kHz to 750 MHz
• LVCMOS: 8 kHz to 250 MHz
• Output frequency range
• Differential: 100 Hz to 1028 MHz
• LVCMOS: 100 Hz to 250 MHz
• Meets G.8262 EEC Option 1, 2 (SyncE)
• Highly configurable outputs compatible with
LVDS, LVPECL, LVCMOS, CML, and HCSL
with programmable signal amplitude
• Si5345: 4 input, 10 output, 64-QFN 9×9 mm
• Si5344: 4 input, 4 output, 44-QFN 7×7 mm
• Si5342: 4 input, 2 output, 44-QFN 7×7 mm
XA
XB
IN0
4 Input IN1
Clocks IN2
IN3/FB_IN
OSC
÷FRAC
÷FRAC
÷FRAC
÷FRAC
DSPLL
MultiSynth
MultiSynth
MultiSynth
MultiSynth
MultiSynth
Status Flags
I2C / SPI
Status Monitor
Control
NVM
÷INT
÷INT
÷INT
÷INT
÷INT
÷INT
÷INT
÷INT
÷INT
÷INT
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
Up to 10
Output Clocks
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
1
Rev. 1.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 26, 2021
1




Skyworks

Si5342 Datasheet Preview

Si5342 Datasheet

Any-Output Jitter Attenuator/Clock Multiplier

No Preview Available !

Si5345/44/42 Rev D Data Sheet • Features List
1. Features List
The Si5345/44/42 Rev D features are listed below:
• Generates any combination of output frequencies from any
input frequency
• Ultra-low jitter of 90 fs rms
• Input frequency range
• Differential: 8 kHz–750 MHz
• LVCMOS: 8 kHz–250 MHz
• Output frequency range
• Differential: 100 Hz to 1028 MHz
• LVCMOS: 100 Hz to 250 MHz
• Programmable jitter attenuation bandwidth: 0.1 Hz to 4 kHz
• Meets G.8262 EEC Option 1, 2 (SyncE)
• Highly configurable outputs compatible with LVDS, LVPECL,
LVCMOS, CML, and HCSL with programmable signal ampli-
tude
• Status monitoring (LOS, OOF, LOL)
• Hitless input clock switching: automatic or manual
• Locks to gapped clock inputs
• Free-run and holdover modes
• Optional zero delay mode
• Fastlock feature for low nominal bandwidths
• Glitchless on the fly output frequency changes
• DCO mode: as low as 0.001 ppb step size
• Core voltage
• VDD: 1.8 V ±5%
• VDDA: 3.3 V ±5%
• Independent output clock supply pins
• 3.3 V, 2.5 V, or 1.8 V
Serial interface: I2C or SPI
• In-circuit programmable with non-volatile OTP memory
ClockBuilder Pro software simplifies device configuration
• Si5345: 4 input, 10 output, 64-QFN 9×9 mm
• Si5344: 4 input, 4 output, 44-QFN 7×7 mm
• Si5342: 4 input, 2 output, 44-QFN 7×7 mm
• Temperature range: –40 to +85 °C
• Pb-free, RoHS-6 compliant
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
Rev. 1.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 26, 2021
2


Part Number Si5342
Description Any-Output Jitter Attenuator/Clock Multiplier
Maker Skyworks
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Si5342 Datasheet PDF






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