si5367 Silicon Laboratories, si5367 Datasheet - Page 10

• Manufacturer Part Number: si5367
• Description: ?p-programmable Precision Clock Multiplier
• Manufacturer: Silicon Laboratories

Si5367
10
Note: Internal register names are indicated by underlined italics, e.g. INT_PIN. See Si5368 Register Map.
Pin #
39
40
44
45
58
59
60
61
68
69
70
SDA_SDO
Pin Name
CKIN3+
CKIN3–
CKIN1+
CKIN1–
A2_SS
C1A
C2A
SCL
A0
A1
Table 3. Si5367 Pin Descriptions (Continued)
I/O
I/O
O
O
I
I
I
I
I
Signal Level
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
MULTI
MULTI
Preliminary Rev. 0.4
Clock Input 3.
Differential clock input. This input can also be driven with
a single-ended signal. CKIN3 serves as the frame sync
input associated with the CKIN1 clock when
CK_CONFIG_REG = 1.
Clock Input 1.
Differential clock input. This input can also be driven with
a single-ended signal.
CKIN1 Active Clock Indicator.
This pin serves as the CKIN1 active clock indicator. The
CK1_ACTV_REG bit always reflects the active clock sta-
tus for CKIN1. If CK1_ACTV_PIN = 1, this status will
also be reflected on the C1A pin with active polarity con-
trolled by the CK_ACTV_POL bit. If
CK1_ACTV_PIN = 0, this output tristates.
CKIN2 Active Clock Indicator.
This pin serves as the CKIN2 active clock indicator. The
CK2_ACTV_REG bit always reflects the active clock sta-
tus for CKIN_2. If CK2_ACTV_PIN = 1, this status will
also be reflected on the C2A pin with active polarity con-
trolled by the CK_ACTV_POL bit. If
CK2_ACTV_PIN = 0, this output tristates.
Serial Clock.
This pin functions as the serial port clock input for both
SPI and I
This pin has a weak pull-down.
Serial Data.
In I
pin functions as the bidirectional serial data port.In SPI
microprocessor control mode (CMODE = 1), this pin
functions as the serial data output.
Serial Port Address.
In I
hardware controlled address bits. The I
1101 [A2][A1][A0.]
In SPI control mode (CMODE = 1), these pins are
ignored.
This pin has a weak pull-down.
Serial Port Address/Slave Select.
In I
pin functions as a hardware controlled address bit. The
I
In SPI microprocessor control mode (CMODE = 1), this
pin functions as the slave select input.
This pin has a weak pull-down.
2
C address is 1101 [A2][A1][A0.]
2
2
2
C control mode (CMODE = 0), these pins function as
C microprocessor control mode (CMODE = 0), this
C microprocessor control mode (CMODE = 0), this
2
C modes.
Description
2
C address is