SI5345_16 Datasheet, PDF(50/60 Page) Silicon Laboratories – 10-Channel, Any-Frequency, Any-Output Jitter Attenuator/ Clock Multiplier

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SI5345_16 Datasheet, PDF (50/60 Pages) Silicon Laboratories – 10-Channel, Any-Frequency, Any-Output Jitter Attenuator/ Clock Multiplier

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Si5345/44/42 Rev D Data Sheet

Pin Descriptions

Pin Name

Si5345

Pin Number

Si5344

Si5342

Pin Type1

Function

VDDO0

VDDO1

VDDO2

VDDO3

VDDO4

VDDO5

VDDO6

Output Clock Supply Voltage

Supply voltage (3.3 V, 2.5 V, 1.8 V) for OUTn, OUTn outputs. For

unused outputs, leave VDDO pins unconnected. An alternative

option is to connect the VDDO pin to a power supply and disable

the output driver to minimize current consumption.

VDDO7

VDDO8

VDDO9

Ground Pad

GND PAD

This pad provides connection to ground and must be connected

for proper operation. Use as many vias as practical, and keep the

via length to an internal ground plane as short as possible.

Note:

1. I = Input, O = Output, P = Power.

2. The IO_VDD_SEL control bit (0x0943 bit 0) selects 3.3 V or 1.8 V operation.

3. The voltage on the VDDS pin(s) determines 3.3 V or 1.8 V operation.

4. Refer to the Family Reference Manual for more information on register setting names.

5. All status pins except I2C and SPI are push-pull.

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