ICS842023
FEMTOCLOCK™CRYSTAL-TO-HSTL CLOCK GENERATOR
PRELIMINARY
.
Table 1. Pin Descriptions
Number
Name
VDDA
GND
Type
Description
1
2
Power
Power
Analog supply pin.
Power supply ground.
3,
4
XTAL_OUT
XTAL_IN
Input
Input
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.
Output enable pin. When HIGH, Q/nQ outputs are active. When LOW, the
Q/nQ outputs are in a high impedance state. LVCMOS/LVTTL interface levels.
5
OE
Pullup
6, 7
8
nQ, Q
VDD
Output
Power
Differential output pair. HSTL interface levels.
Core supply pin.
NOTE: Pullup refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
Symbol
CIN
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
pF
Input Capacitance
Input Pullup Resistor
4
RPULLUP
51
kΩ
Absolute Maximum Ratings
NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.
These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond
those listed in the DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect product reliability.
Item
Rating
Supply Voltage, VDD
Inputs, VI
4.6V
-0.5V to VDD + 0.5V
Outputs, IO
Continuos Current
Surge Current
50mA
100mA
Package Thermal Impedance, θJA
129.5°C/W (0 mps)
-65°C to 150°C
Storage Temperature, TSTG
DC Electrical Characteristics
Table 3A. Power Supply DC Characteristics, VDD = 3.3V 5%, TA = 0°C to 70°C
Symbol Parameter
Test Conditions
Minimum
3.135
Typical
3.3
Maximum
3.465
3.465
89
Units
V
VDD
VDDA
IDD
Power Supply Voltage
Analog Supply Voltage
Power Supply Current
Analog Supply Current
3.135
3.3
V
mA
mA
IDDA
9
IDT™ / ICS™ HSTL CLOCK GENERATOR
2
ICS842023AG REV. B JULY 15, 2008