SM802116 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – ClockWorks™ Fibre Channel (106.25MHz, 212.5MHz) Ultra-Low Jitter, LVDS Frequency

Micrel, Inc.
Pin Description (Continued)
Pin Number
5, 11, 16, 18
1
13, 14, 15
17
21
8
Pin Name
TEST
VDD
VSS
VDDO1
VSSO1
REF_IN
Pin Type
PWR
PWR
PWR
PWR
I, (SE)
9
XTAL_IN
I, (SE)
10
XTAL_OUT
O, (SE)
6
FSEL
I, (SE)
7
OE1
I, (SE)
12
OE2
I, (SE)
SM802116
Pin Level
LVCMOS
12pF crystal
12pF crystal
LVCMOS
LVCMOS
LVCMOS
Pin Function
Factory Test pins, Do not connect anything to these pins.
Core Power Supply
Core Power Supply Ground
Power Supply for Output Bank 1
Power Supply Ground for Output Bank 1
Reference Clock Input
Crystal Reference Input, no load caps needed.
(see Figure 5)
Crystal Reference Output, no load caps needed.
(se Figure 5)
Frequency Select, 1 = 106.25MHz, 0 = 212.5MHz,
45KΩ pull-up
Output Enable, Q1 disables to tri-state,
0 = Disabled, 1 = Enabled, 45KΩ pull-up
Output Enable, Q2 disables to tri-state,
0 = Disabled, 1 = Enabled, 45KΩ pull-up
Truth Tables
PLL_BYPASS
0
1
−
−
−
−
XTAL_SEL
−
−
0
1
−
−
OE2
1
1
1
1
0
1
OE1
1
1
1
1
1
0
INPUT
−
−
REF_IN
XTAL
−
−
OUTPUT
PLL
XTAL/REF_IN
−
−
Q2 Tri-state
Q1 Tri-state
FSEL
0
1
Output Frequency
(MHz)
212.5
106.25
July 2011
3
M9999-071811-A
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