SI5380_16 Datasheet, PDF (43/53 Pages) Silicon Laboratories – Ultra-Low Phase Noise, 12-output JESD204B Clock Generator

Pin Name
OUT0A
OUT0Ab
OUT0
OUT0b
OUT1
OUT1b
OUT2
OUT2b
OUT3
OUT3b
OUT4
OUT4b
OUT5
OUT5b
OUT6
OUT6b
OUT7
OUT7b
OUT8
OUT8b
OUT9
OUT9b
OUT9A
OUT9Ab
Serial Interface
I2C_SEL
SDA/SDIO
Pin Number
21
20
24
23
28
27
31
30
35
34
38
37
42
41
45
44
51
50
54
53
56
55
59
58
39
18
A1/SDO
17
SCLK
16
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Pin Type¹
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I/O
I/O
I
Si5380 Rev D Data Sheet
Pin Description
Function
Output Clocks. These output clocks support programma-
ble signal amplitude and common mode voltage. Desired
output signal format is configurable using register control.
Termination recommendations are provided in
3.5.5 LVCMOS Output Terminations. Unused outputs
should be left unconnected.
I2C Select. This pin selects the serial interface mode as I²C
(I2C_SEL = 1) or SPI (I2C_SEL = 0). This pin is internally
pulled high.
Serial Data Interface. This is the bidirectional data pin
(SDA) for the I²C mode, the bidirectional data pin (SDIO) in
the 3-wire SPI mode, or the input data pin (SDI) in 4-wire
SPI mode. When in I²C mode or unused, this pin must be
pulled-up using an external resistor of >= 1 kΩ. No pull-up
resistor is needed when in SPI mode.
Address Select 1/Serial Data Output. In I²C mode this pin
functions as the A1 address input pin. In 4-wire SPI mode,
this is the serial data output (SDO) pin. This pin should be
externally pulled up or down when unused.
Serial Clock Input. This pin functions as the serial clock in-
put for both I²C and SPI modes. When in I²C mode or un-
used, this pin must be pulled-up using an external resistor
of >= 1 kΩ. No pull-up resistor is needed when in SPI mode.
Rev. 1.0 | 42