840N021 Datasheet, PDF (2/13 Pages) Integrated Device Technology – FemtoClock NG Crystal-to-LVCMOS/LVTTL Clock

840N021 DATA SHEET
Pin Descriptions and Characteristics
Table 1. Pin Descriptions
Number
Name
1
V_DDA
2
OE
3,
XTAL_OUT,
4
XTAL_IN
5
DNU
6
GND
7
Q
8
V_DD
Type
Power
Input
Pullup
Input
Power
Output
Power
Description
Analog power supply.
Output enable pin. LVCMOS interface levels.
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.
Do not use. Do not connect.
Power supply ground.
Single-ended clock output. LVCMOS/LVTTL interface levels.
Core supply pin.
NOTE: Pullup refers to an internal input resistor. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
Symbol
Parameter
C_IN
Input Capacitance
C_PD
Power Dissipation
Capacitance
R_PULLUP
Input Pullup Resistor
R_OUT
Output Impedance
Test Conditions
OE
V_DD = 3.465V
V_DD = 2.625V
V_DD = 3.3V
V_DD = 2.5V
Minimum
Typical
3.5
11
9
51
15
19
Maximum
Units
pF
pF
pF
k


REVISION A 8/14/15
2
FEMTOCLOCK® NG CRYSTAL-TO-LVCMOS/LVTTL CLOCK
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