XR81112 Datasheet, PDF (5/12 Pages) Exar Corporation – Universal Clock - High Frequency LVCMOS/LVDS/LVPECL Clock Synthesizer

Pin Configuration
12
11
10
XTAL_IN
1
9
V_CC
XTAL_OUT 2
8
V_EE
FSEL1
3
7
OE
4
5
6
XR81112
Pin Assignments
Pin No.
Pin Name
1
XTAL_IN
2
XTAL_OUT
3
FSEL1
4
FSEL0
5
V_EE
6
NC
7
OE
8
V_EE
9
V_CC
10
Q
11
Q
12
V_CC
Type
Description
Input
Crystal oscillator input.
Output
Crystal oscillator output.
Input
Output frequency select pin, MSB (LVCMOS/LVTTL input).
(900K: pull-dwn)
Input
Output frequency select pin, LSB (LVCMOS/LVTTL input).
(900K: pull-dwn)
Supply
Negative supply pin.
No Connect
Input
(900K: pull-up)
Supply
Unused, do not connect.
Output enable pin - LVCMOS/LVTTL active high input. Outputs are enabled when OE = high.
Outputs are disabled when OE = low.
Negative supply pin.
Supply
Power supply pin.
Output
Output
Supply
Positive output.
Inverted output.
Power supply pin.
© 2014 Exar Corporation
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exar.com/XR81112
Rev 1A