English
Language : 

TX7-705-SQ-ST3 Datasheet, PDF (1/1 Pages) QUARTZCOM the communications company – High precision analogue compensated STRATUM III SMD TCXO
TX7-705-SQ-ST3
High precision analogue compensated
STRATUM III SMD TCXO
Features
 Applications: transmission, TDM networks, SDH, SONET, wireless
communications, IEEE 1588v2, SyncE, STRATUM III, wireless
backhaul, metro carrier Ethernet, femtocells, picocells
 Holdover stability: ±0.37 ppm over 24 h
 Overall stability: ±4.60 ppm including 20 years aging
 Output signal: Clipped sine wave or CMOS
Parameter
Specification
Frequency range
9.83040 ~ 52.0 MHz
Standard frequencies
10.0, 12.80, 16.3840, 19.440, 20.0, 25.0, 26.0, 32.0, 40.0 & 50.0 MHz
Frequency stability
≤ ±4.60 ppm
overall inclusive
Overall inclusive
frequency stability vs. temperature, tolerance, aging over 20 years, supply & load variation
vs. temperature
≤ ±0.28 ppm
-40 ~ +85 °C
vs. aging
≤ ±3.5 ppm
20 years
Short term aging, G.813 Option 1
Holdover stability (1)
≤ ±0.01 ppm/day (Note #3)
≤ ±0.37 ppm
@ +25 °C ±1 °C
over 24 hours
Frequency tolerance ex. Factory (preset)
≤ ±0.50 ppm
@ +25 °C
Supply voltage
+3.3 V or +5.0 V
Supply current
< 8 mA
Output signal
clipped sine wave
CMOS
Output level
Output load
Tri-state function
> 0.8 Vp-p
10 kΩ // 10 pF
pin #9 high or open
pin #9 low
VOH > 0.9 x Vdc / VOL < 0.1 x Vdc
15 pF
pin #6  oscillation
pin #6  high impedance
Phase noise @ 12.8 MHz carrier frequency
-145 dBc/Hz
@10 kHz
Operating temperature range
-20 ~ +70 °C
indoor use
-40 ~ +85 °C
outdoor use
Storage temperature range
-55 ~ +125 °C
Packaging units
tape & reel
500 or 1’000 pieces
Customer specifications on request
(1) Including: frequency stability, vs temperature, supply change of ±5 % and aging over 24 hours
Pin function
Soldering pattern
# 1 GND or not connected
# 5 GND
# 6 Output
# 9 Tri-state
# 10 Vdc
Do not contact #2, #3, #4, #7 & #8
IR reflow soldering temperature
QuartzCom AG
Bischmattstrasse 11
CH 2544 Bettlach
Switzerland
2011/65/EU RoHS compliant
Fax
Tel
E-Mail
+41 32 644 24 05
+41 32 644 24 00
sales@quartzcom.com
www.quartzcom.com
16 May. 14