ClearClock™ | Ultra-Low Jitter, Fixed-Frequency Miniature Clock Oscillator
2.5 x 2.0 x 1.0 mm
RoHS/RꢀHS II Compliant
MSL = 1
AK2
ESD Sensitive
Pb
Product Description
Abracon’s latest addition to the ClearClockTM family of ultra-low rms jitter oscillators is now available in a miniature 2.5 x 2.0 x
1.0 mm package. The AK2 family is based on 3rd overtone quartz crystal technology and is ideally suited for optical transceivers,
networking and server systems. AK2 family is available with bias voltages of 3.3V and 2.5V for LVDS & LVPECL output
configuration; and 3.3V, 2.5V & 1.8V for HCSL differential output. Production-ready frequencies include 100, 125, 148.5, 156.25
and 200MHz with better than ±30 ppm frequency stability over -40°C to +85°C operating temperature range.
The AK2 family offers best-in-class rms phase jitter of <110 fs typical at 156.25MHz carrier @ Vdd = +2.5V with LVDS output, and
is guaranteed to exhibit <200fs rms jitter @ 156.25MHz carrier with any bias voltage and RF output configuration.
Features
Applications
• Based on 3rd Overtone, Quartz Crystal Technology
• Ultra-low rms jitter; < 120fs typical @ 156.25MHz
• Lowest in-class power consumption (15mA max with LVDS)
• ±25ppm max & ±30ppm max stability over -20°C to +70°C
and -40°C to +85°C respectively
• Optical Transceivers
• Optical Modules
• Networking and communications
• Gigabit Ethernet
• Fibre Channel
• 3.3V, 2.5V & 1.8V supply voltage options
• SONET/SDH
• LVPECL, LVDS and HCSL differential output options
• Output enabled (Active High standard default)
• RF systems, base stations (BTS)
• Datacenter
• PCI Express
• Test & measurement
• Active cables
• Compact HD-SDI cameras
[Note 1]
Options and Part Identification
AK2
(6): Packaging
(1): Output
Blank: Bulk (***)
T: Tape & Reel 1,000 units
T3: Tape & Reel 3,000 units
(***) MOQ: 100 units
(3): Stability over OTR
D: ±25ppm over -20°C to +70°C
P: LVPECL
D: LVDS
H: HCSL
F: ±30 ppm over -40°C to +85°C
(2): Vdd
A: 3.3V
(5): Output Frequency
in MHz
B: 2.5V
(4): OE Function
1: OE Pin 1; Active High
2: OE Pin 2; Active High
C: 1.8V (*)
Please specify the frequency in
units of MHz out to
4 digit accuracy after the decimal.
Example: “156.2500”=156.25MHz
(*) Excluding
LVPECL
Part Number Example:
AK2PAF1-156.2500
AK2PAF1-156.2500T
AK2PAF1-156.2500T3
[(100) units in Bulk]
[(1k) units on Tape & Reel]
[(3k) units on Tape & Reel]
Note 1: Contact Abracon for non-standard part number configurations and/or requests with carrier frequency callouts up to 5 & 6 digit accuracy after the decimal.
5101 Hidden Creek Ln Spicewood TX 78669
ABRACON IS
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
ISO9001-2015
CERTIFIED
REVISED: 09.06.2019
LLC