840N022 Datasheet, PDF (2/13 Pages) Integrated Device Technology – FemtoClock® NG Crystal-to-LVCMOS/LVTTL Clock

840N022 DATA SHEET
Pin Descriptions and Characteristics
Table 1. Pin Descriptions
Number
Name
1
V_DDA
2
OE
3,
XTAL_OUT,
4
XTAL_IN
5
FREQ_SEL
6
GND
7
Q
8
V_DD
Type
Power
Input
Pullup
Input
Input
Power
Output
Power
Pulldown
Description
Analog power supply.
Output enable pin. LVCMOS interface levels.
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.
Frequency select pin. LVCMOS interface levels.
Power supply ground.
Single-ended clock output. LVCMOS/LVTTL interface levels.
Core supply pin.
NOTE: Pulldown and Pullup refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
Symbol
C_IN
C_PD
Parameter
Input Capacitance
Power Dissipation
Capacitance
R_Pullup
R_Pulldown
Input Pullup Resistor
Input Pulldown Resistor
R_OUT
Output Impedance
Test Conditions
OE, FREQ_SEL
V_DD = 3.465V
V_DD = 2.625V
V_DD = 3.3V
V_DD = 2.5V
Minimum
Typical
3.5
11
9
51
51
15
19
Maximum
Units
pF
pF
pF
k
k


FEMTOCLOCK® NG CRYSTAL-TO-LVCMOS/LVTTL CLOCK
2
SYNTHESIZER
REVISION A 8/14/15