SI5322/23-EVB Silicon Laboratories Inc, SI5322/23-EVB Datasheet - Page 7

• Manufacturer Part Number: SI5322/23-EVB
• Description: BOARD EVAL FOR SI5322/23
• Manufacturer: Silicon Laboratories Inc

Specifications of SI5322/23-EVB

• Main Purpose: Timing, Clock Generator
• Utilized Ic / Part: SI5322, SI5323
• Processor To Be Evaluated: Si5322 and Si5323
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2. Pin Descriptions: Si5322
Pin assignments are preliminary and subject to change.
Pin #
1
2
3
Pin Name
FRQTBL
RST
C1B
I/O
O
I
I
AUTOSEL
FRQTBL
GND
GND
VDD
RST
C1B
C2B
Table 3. Si5322 Pin Descriptions
NC
Signal Level
LVCMOS
LVCMOS
3-Level
1
2
3
4
5
6
7
8
9
36
10 11 12 13 14 15 16 17
35
Preliminary Rev. 0.5
34
33
GND
Pad
External Reset.
Active low input that performs external hardware reset of
device. Resets all internal logic to a known state. Clock out-
puts are tristated during reset. After rising edge of RST sig-
nal, the Si5322 will perform an internal self-calibration.
This pin has a weak pull-up.
Frequency Table Select.
Selects SONET/SDH, datacom, or SONET/SDH to datacom
frequency table.
L = SONET/SDH.
M = Datacom.
H = SONET/SDH to Datacom.
The pin has a weak pull-up and weak pull-down and
defaults to M.
Some designs may require an external resistor voltage
divider when driven by an active device that will tri-state.
CKIN1 Loss of Signal.
Active high loss-of-signal indicator for CKIN1. Once trig-
gered, the alarm will remain active until CKIN1 is validated.
0 = CKIN1 present.
1 = LOS on CKIN1.
32
31
30
29
28
18
27
26
25
24
23
22
21
20
19
FRQSEL3
FRQSEL2
FRQSEL1
FRQSEL0
BWSEL1
BWSEL0
CS_CA
GND
GND
Description
Si5322
7