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81006AKLFT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
DATA SHEET
VCXO-To-6 LVCMOS Outputs 81006
81006 REVISION B 7/29/16 1 ©2016 Integrated Device Technology, Inc.
General Description
The 81006 is a high performance, low jitter/ low phase noise VCXO.
The 81006 works in conjunction with a pullable crystal to generate an
output clock over the range of 12MHz
–
31.25MHz and has 6
LVCMOS outputs, effectively integrating a fanout buffer function.
The frequency of the VCXO is adjusted by the VC control voltage
input. The output range is ±100ppm around the nominal crystal
frequency. The VC control voltage range is 0 – V
DD
. The device is
packaged in a small 4mm x 4mm VFQFN package and is ideal for use
on space constrained boards typically encountered in ADSL/VDSL
applications.
Features
• Six LVCMOS/LVTTL outputs, 20 nominal output impedance
• Output Q5 can be selected for ÷1 or ÷2 frequency relative to the
crystal fre
quency
• Output frequency range: 12MHz to 31.25MHz
• Crystal pull range: ±90ppm (typical)
• Synchronous output enable places outputs in High-
Impedance state
• On-chip filter on VIN to supp
ress noise modulation of VCXO
•V
DD
/V
DDO
combinations
3.3V/3.3V
3.3V/2.5V
3.3V/1.8V
2.5V/2.5V
2.5V/1.8V
• 4mm x 4mm 20-Lead VFQFN package is ideal for space
constrained designs
• 0°C to 70°C ambient operating temperature
• Lead-free (RoHS 6) packaging
VCXO
0: ÷1
1: ÷2
SYNC
SYNC
LP Filter
Q0
Q1
Q2
Q3
Q4
Q5
OE0
OE1
VC
XTAL_IN
XTAL_OUT
DIV_SEL_Q5
Pullup
Pullup
Pulldown
Block Diagram Pin Assignment
XTAL_IN
XTAL_OUT
V
DD
VC
DIV_SEL_Q5
GND
Q2
V
DDO
Q3
GND
OE1
GND
Q5
V
DDO
Q4
OE0
GND
Q0
V
DDO
Q1
1
2
3
4
5
20 19 18 17 16
6 7 8 9 10
15
14
13
12
11
81006
20-Lead VFQFN
4m
m x 4mm x 0.925 package body
K Package
Top View
OBSOLETE
81006 DATA SHEET
VCXO-TO-6 LVCMOS OUTPUTS 2 REVISION B 7/29/16
Pin Descriptions and Characteristics
Table 1. Pin Descriptions
1
Number Name Type
1, 2
XTAL_IN,
XTAL_OUT
Input Crystal oscillator interface. XTAL_IN is th
e input. XTAL_OUT is the output.
3 V
DD
Power Positive supply pin.
4 VC Input Control voltage input.
5 DIV_SEL_Q5 Input Pulldown
Output divider select pin for Q5 output. When LOW, ÷1. When HIGH, ÷2.
LVCMOS/LVTTL in
terface levels.
6 OE1 Input Pullup
Output enable pin. When HIGH, Q5 output is enabled. When LOW, forces
Q5 to a high
impedance state. LVCMOS/LVTTL interface levels.
7, 11, 15, 19 GND Power Power supply ground.
8, 10, 12, 14,
16, 1
8
Q5, Q4, Q3,
Q2, Q1, Q0
Output
Single-ended clock outputs. LVCMOS/LVTTL interface levels. 20ou
tput
impedance.
9, 13, 17 V
DDO
Power Output supply pins.
20 OE0 Input Pullup
Output enable pin. When HIGH, Q0:Q4 outputs are enabled. When LOW,
fo
rces Q0:Q4 to a high impedance state. LVCMOS/LVTTL interface levels.
Description
NOTE 1: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
Symbol Parameter Test Conditions Minimum Typical Maximum Units
C
IN
Input
Capacitance
OE0, OE1 4 pF
C
PD
Power Dissipation
Capacitance
V
DD
= V
DDO
= 3.465V 3 pF
V
DD
= 3.465V or 2.625V,
V
DDO
= 2.625V
4pF
V
DD
= 3.465V or 2.625V,
V
DDO
= 2V
6pF
R
PULLUP
Input Pullup Resistor 51 k
R
PULLDOWN
Input Pulldown Resistor 51 k
R
OUT
Output Impedance
V
DDO
= 3.3V 20
V
DDO
= 2.5V 25
V
DDO
= 1.8V 38
REVISION B 7/29/16 3 VCXO-TO-6 LVCMOS OUTPUTS
81006 DATA SHEET
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 Electrical Characteristics
or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.
Supply Voltage, V
DD
4.6V
Inputs, V
I
-0.5V to V
DD
+ 0.5V
Outputs, V
O
-0.5V to V
DDO
+ 0.5V
Package Thermal Impedance,
JA
60.4°C/W (0 mps)
Storage Temperature, T
STG
-65C to 150C
DC Electrical Characteristics
Table 3A. Power Supply DC Characteristics, V
DD
= 3.3V ±5%, V
DDO
= 3.3V ±5%, 2.5V ±5% or 1.8V ±0.2V, T
A
= 0°C to 70°C
Test Conditions Minimum Typical Maximum Units
V
DD
Positive Supply Voltage 3.135 3.3 3.465 V
V
DDO
Output Supply Voltage
3.135 3.3 3.465 V
2.375 2.5 2.625 V
1.6 1.8 2.0 V
I
DD
Power Supply Current 50 mA
I
DDO
Output Supply Current 20 mA
Item Rating
Symbol Parameter
Table 3B. Power Supply DC Characteristics, V
DD
= 2.5V ±5%, V
DDO
= 2.5V ±5% or 1.8V ±0.2V, T
A
= 0°C to 70°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
DD
Positive Supply Voltage 2.375 2.5 2.625 V
V
DDO
Output Supply Voltage
2.375 2.5 2.625 V
1.6 1.8 2.0 V
I
DD
Power Supply Current 50 mA
I
DDO
Output Supply Current 20 mA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

81006AKLFT

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Manufacturer:
IDT
Description:
Clock Generators & Support Products 6 CMOS OUT VCXO
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