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2'4)(0
®
$0,+*  PLFURQ &026 *DWH $UUD\
Description
ODQFE20M is a fundamental mode, enabled crystal oscillator, output buffer pad piece that runs over a frequency range
of 1 MHz - 20 MHz. QI is the input from IDQC3. E is the oscillator high input enable. PADM is the bond pad to the Xtal-
out.
Logic Symbol
Logic Schematic
ODQFE20M
E
QI
PADM
P
D
IDQC3
QC E
QC E
QI
QO
ODQFE20M
Xtal-in
Xtal-out
Truth Table
PADM
H
H
L
E
L
H
H
QI
X
L
H
Pin Loading
Load
E 6.5 eql
QI 5.5 eql
HDL Syntax
Verilog .................... ODQFE20M inst_name (PADM, E, QI);
VHDL...................... inst_name: ODQFE20M port map (PADM, E, QI);
Power Characteristics
Parameter
Static IDD (TJ = 85°C)
EQLpd
See page 2-15 for power equation.
Value
TBD
165.4
Units
nA
Eq-load
4-31

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2'4)(0
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$0,+*  PLFURQ &026 *DWH $UUD\
Propagation Delays
Conditions: TJ = 25°C, VDD = 5.0V, Typical Process
Delay (ns)
From
To Parameter
15
E
PADM
tPLH
tPHL
3.40
2.46
QI
PADM
tPLH
tPHL
2.40
2.51
Delay will vary with input conditions. See page 2-17 for interconnect estimates.
50
7.03
6.17
6.00
6.18
Capacitive Load (pF)
75
9.59
8.85
8.60
8.81
100
12.18
11.53
11.21
11.46
150 (max)
17.46
16.78
16.40
16.80
Design Notes:
The ODQFE20M is the output cell of a two cell oscillator circuit. The QI pin is to be connected the QO pin of the IDQC3 oscillator input receiver piece. Two package pins
are required to create a complete oscillator.
4-32