ABFT-20.000MHZ-EVAL Datasheet, PDF (1/4 Pages) Abracon Corporation – Frequency Translator-Evaluation Board

Frequency Translator-Evaluation Board
ABFT-20.000MHz-EVAL
Pb
RoHS
Compliant
40 x 30 x 8mm
|||||||||||||| ^|
Moisture Sensitivity Level (MSL)–This product is not Moisture Sensitive MSL = N/A: Not Applicable
FEATURES:
• The ABFT Evaluation Boards are available with either the 20MHz or the 40MHz Translator
on-board
• These boards provide a convenient means to conduct engineering evaluation of Abracon's
Frequency Tranlator / Jitter Attenuator Solution
• The Evaluation Board is provided with standard SMA connectors for 10MHz Reference In, Supply
Voltage and Locked Output
• The Evalautation Board can be tested over -40ºC to +85ºC Industrial Operating Temperature Range
- to quantify frequency tracking over temperature capability of Abracon's solution
APPLICATIONS:
• Frequency translation, clock smoothing and jitter attenuation of the input
10MHz reference
• Datacom - DSLAM, DSLAR, Access Nodes
• Cable modem head end
• Base Station - GSM, CDMA
• Telecom - SONET/SDH/ATM
GENERAL DESCRIPTION
ABFT Evaluation Boards comprise of the Ultra Low Jitter ABFT Frequency Translator / Jitter Attenuator, which is ideally suited to improve the Jitter charac-
teristics of the input signal. This device is designed to provide input clock smoothing - while providing Phase and Frequency Locked higher frequency
translated output. Typical application will take a 10MHz reference frequency and phase & frequency lock it to either a 20MHz or a 40MHz Low Jitter VCXO.
The implemented technology significantly attenuates the jitter content of the 10MHz reference signal; while keeping the higher frequency RF Output -
Frequency and Phase Coherent with the input 10MHz reference signal.
STANDARD SPECIFICATIONS:
Parameters
Resonant Frequency
Operating Temperature
Storage Temperature
Supply Voltage (Vdd)
Input Signal Characteristics
Frequency
Signal level
Lock Time
Frequency Stability Over Temperature
(Note # 1)
Internal Frequency Pull Range
Supply Current (I_DD)
RF output Characteristics
Minimum
-40
-40
3.135
9.999800
0.300
-25.00
±100.00
Typical
20.000
Or
40.00
3.3
10.000000
< 20
< 14.0
Maximum
+85
+85
3.465
10.000200
3.3
50
+25.00
20.00
Units
MHz
°C
°C
V
MHz
Vp-p
ms
ppb
ppm
mA
Notes
See options
3.3V±5%
Input signal must be
with-in ±20.00 ppm
from 10.00MHz
carrier for the ABFT
device to achieve lock
Referenced to the
stable input reference
of 10.00MHz (such as
a Stratum-III TCXO
or an OCXO)
This is the internal
pull range of the
ABFT device
providing sufficient
correction range to
account for internal
aging, stand-alone
temperature variation,
etc.
Under Lock
Output Load:
Rise Time (Tr)
Fall Time (Tf)
Symmetry
Output Voltage ( V_OH)
Output Voltage ( V_OL)
45
0.9*Vdd
853
526
48/52
15||10
1200
1200
55
0.1*Vdd
pF||kΩ
ps
ps
%
V
V
@1/2Vdd
Stand alone Aging (Note # 2)
-5.0
-12.0
+5.0
+12.0
@+25°C First year
ppm
@+25°C After 10
years
(Note # 1):The frequency stability over temperature of the ABFT device is greatly dependant on the short term perturbations of the input reference signal.
(Note # 2):The Aging characteristics of the Quartz used inside the ABFT solution are such that, the stand-alone aging will not exceed ±12.00 ppm over a
10-year product life; referenced to the initial measured frequency post reflow in end application
AABBRRAACCOONN IISS
ISO9001:2008
CCEERRTTIIFFIIEEDD
Visit www.abracon.com for Terms & Conditions of Sale Revised: 03.07.12
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