Frequency Reference Units
1). OCXO frequency references
Ordering information as below:
| Model | Freq. stab. | Phase noise | Standard parameters | |||
| SO | DO | LN | ULN | 10M, Sine wave, AC 230V
Output ports: 1 OCXO direct output, 3 splitted outputs Short-term stability: 2E-12/s Temp. range: -10ºC to +60ºC Size: 483x250x44mm (Slim 19” rack with 1HU)
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| AXIOM9000 | Initial tol. @ delivery
Temp. stab. Daily aging Yearly aging |
< ±10ppb
< ±2ppb < ±0.5ppb < ±50ppb |
< ±10ppb
< ±0.1ppb < ±0.1ppb < ±20ppb |
-100dBc/Hz @ 1Hz
-130dBc/Hz @ 10Hz -145dBc/Hz @ 100Hz -150dBc/Hz @ 1kHz -160dBc/Hz @ 10kHz -160dBc/Hz @ >= 100kHz |
-108dBc/Hz @ 1Hz
-138dBc/Hz @ 10Hz -155dBc/Hz @ 100Hz -163dBc/Hz @ 1kHz -170dBc/Hz @ 10kHz -170dBc/Hz @ >= 100kHz |
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| AXIOM9000 | Initial tol. @ delivery
Temp. stab. Daily aging Yearly aging |
< ±10ppb
< ±2ppb < ±0.5ppb < ±50ppb |
< ±10ppb
< ±0.1ppb < ±0.1ppb < ±20ppb |
-100dBc/Hz @ 1Hz
-130dBc/Hz @ 10Hz -145dBc/Hz @ 100Hz -150dBc/Hz @ 1kHz -155dBc/Hz @ 10kHz -155dBc/Hz @ >= 100kHz |
-108dBc/Hz @ 1Hz
-138dBc/Hz @ 10Hz -148dBc/Hz @ 100Hz -158dBc/Hz @ 1kHz -163dBc/Hz @ 10kHz -165dBc/Hz @ >= 100kHz |
10M, Sine wave, AC 230V
Output ports: 4, 8, 16 (Pls specify) Short-term stability: 2E-12/s Temp. range: -10ºC to +60ºC Size: 483x250x44mm (Slim 19” rack with 1HU)
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2). Miniature atomic clock
| Type | Supply voltage | Temp. range | Short-term stability | Long-term stability | Phase noise | Other parameters | |
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TA4135 (41x35x11.5mm)
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33 = +3.3V | B = -55ºC
C = -50ºC D = -45ºC E = -40ºC F = -35ºC G = -30ºC H = -25ºC I = -20ºC |
J = -15ºC
K = -10ºC L = 0ºC M = +60ºC N = +70ºC O = +80ºC P = +85ºC Q = +90ºC |
<= 3.0E-10/1s
<= 1.0E-10/10s <= 3.0E-11/100s |
<= 9E-10/month | <= -70dBc/Hz @ 10Hz
<= -113dBc/Hz @ 100Hz <= -128dBc/Hz @ 1kHz <= -135dBc/Hz @ 10kHz |
10M, CMOS (Sine optional)
MTBF > 100k hours Temp. stab. <= 5E-10 |
| TA4536 (45x36x13.5mm) | 33 = +3.3V | <= 3.0E-10/1s
<= 1.0E-10/10s <= 3.0E-11/100s |
<= 9E-10/month | <= -100dBc/Hz @ 10Hz
<= -125dBc/Hz @ 100Hz <= -140dBc/Hz @ 1kHz <= -145dBc/Hz @ 10kHz |
10M, CMOS (LVCMOS optional)
MTBF > 100k hours Temp. stab. <= 1E-9 |
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Note: Please consult factory for programming manual. RS-232 transceiver required for RS-232 logic levels
3). Rubidium atomic clocks
| Type | Supply voltage | Temp. range | Temp. stab. | Short-term stability | Phase noise | Other parameters | |
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R89 (89x76x28mm)
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12 = +12V | B = -55ºC
C = -50ºC D = -45ºC E = -40ºC F = -35ºC G = -30ºC H = -25ºC I = -20ºC |
J = -15ºC
K = -10ºC L = 0ºC M = +60ºC N = +70ºC O = +80ºC P = +85ºC Q = +90ºC |
+/-0.60ppb | <= 3.0E-11/1s
<= 1.0E-11/10s <= 3.0E-12/100s |
<= -100dBc/Hz @ 10Hz
<= -130dBc/Hz @ 100Hz <= -140dBc/Hz @ 1kHz |
10M, Sinewave RF output
1PPS output: LVCMOS 9-Pin D-Sub male with jack posts |
| R55 (50.8×50.8x25mm) | 12 = +12V | +/-0.60ppb | <= 5.0E-11/1s
<= 2.0E-11/10s <= 5.0E-12/100s |
<= -95dBc/Hz @ 10Hz
<= -125dBc/Hz @ 100Hz <= -135dBc/Hz @ 1kHz |
10M, Sinewave RF output | ||
| AXRB9000
(Slim 19” rack with 1HU) |
AC 230V | +/-0.30ppb | <= 1.0E-11/1s
<= 5.0E-12/10s <= 1.0E-12/100s |
<= -100dBc/Hz @ 1Hz
<= -140dBc/Hz @ 10Hz <= -160dBc/Hz @ 100Hz <= -165dBc/Hz @ 1kHz <= -170dBc/Hz >= 10kHz |
10M, Sinewave RF output
RF output RF1: Sinewave RF output RF2: HCMOS/TTL RF connectors: BNC female Communication connector: 9-Pin D-Sub male with jack posts |
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Note: For Militarized, Rad hard, Ruggedized, Tactical, pls contact us
4). Cesium atomic clocks
| Standard Version | High Performance Version | |||
| Frequency accuracy | +/-1E-12 | +/-5E-13 | ||
| Frequency deviation over full operating conditions: -5°C to +55°C | +/-2E-12 | +/-1E-12 | ||
| Short term stability
(ADEV) |
1s
10s 100s 1,000s 10,000s 100,000s Floor |
2E-11
2E-11 5E-12 1.5E-12 5E-13 3E-13 3E-13 |
5E-12
2.7E-12 8.5E-13 2.7E-13 8.5E-14 2.7E-14 2E-14 |
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| Frequency | 10MHz with BNC connector | |||
| Output phase noise | n 1Hz offset
n 10Hz offset n 100Hz offset n 1kHz offset n 10kHz offset n 100kHz offset |
-90dBc/Hz
-120dBc/Hz -135dBc/Hz -145dBc/Hz -145dBc/Hz -145dBc/Hz |
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| Programmable auxiliary output | 1M / 5M / 10MHz | |||
| DC power input | 48V DC nominal floating (24V to 60V) | |||
| AC power input | 90V to 260V AC | |||
| Size | 133x535x270mm (5.24’’x19’’x10.63’’)
3U 19’’ mounting and ETSI |
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Note: We reserve the right to change all specifications contained herein at any time without prior notice
5). GPS-disciplined oscillators
| Type | Temp. range | Freq. stab. | Short-term stability | Phase noise | Other parameters | |
| AXGPS5050 | B = -55ºC
C = -50ºC D = -45ºC E = -40ºC F = -35ºC G = -30ºC H = -25ºC I = -20ºC |
J = -15ºC
K = -10ºC L = 0ºC M = +60ºC N = +70ºC O = +80ºC P = +85ºC Q = +90ºC |
Tracking accuracy (GPS locked): 2E-13
Holdover stability over 24 hours: 1E-11 |
<= 1.0E-11/1s-100s
<= 6.0E-12/1ks <= 1.0E-12/10ks <= 1.0E-13/100ks |
<= -100dBc/Hz @ 1Hz
<= -130dBc/Hz @ 10Hz <= -150dBc/Hz @ 100Hz <= -155dBc/Hz @ 1kHz <= -155dBc/Hz @ 10kHz |
RF1 output: 10M Sinewave
RF2 output: 1PPS, LVCMOS +12V supply GPS input: 1575.42MHz Size: 50x50x25mm max. |
| AXGPS9000
(483x250x44mm) |
Tracking accuracy (GPS locked): 2E-13
Holdover stability over 24 hours: 1E-11 |
<= 1.0E-11/1s-100s
<= 6.0E-12/1ks <= 1.0E-12/10ks <= 1.0E-13/100ks |
<= -108dBc/Hz @ 1Hz
<= -138dBc/Hz @ 10Hz <= -155dBc/Hz @ 100Hz <= -165dBc/Hz @ 1kHz <= -170dBc/Hz @ 10kHz |
RF output RF1: Sinewave
RF output RF2: Square wave / TTL GPS input: 1575.42MHz AC 230V supply Slim 19” rack with 1HU |
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| AXGPS9000RB
(483x250x44mm) |
Tracking accuracy (GPS locked): 2E-13
Holdover stability over 24 hours: 1E-12 |
<= 1.0E-11/1s
<= 4.0E-12/10s <= 1.0E-12/100s <= 1.0E-12/1ks <= 7.0E-13/10ks <= 1.0E-13/100ks |
<= -108dBc/Hz @ 1Hz
<= -138dBc/Hz @ 10Hz <= -155dBc/Hz @ 100Hz <= -165dBc/Hz @ 1kHz <= -170dBc/Hz @ 10kHz |
RF output RF1: Sinewave
RF output RF2: HCMOS/TTL GPS input: 1575.42MHz AC 230V supply Slim 19” rack with 1HU |
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6). Distribution amplifiers
| Type | Temp. range | Residual inter-channel stab. @ 10M | Residual phase noise @ 10M | Other parameters | |
| AXDA9000
(483x250x44mm) |
B = -55ºC
C = -50ºC D = -45ºC E = -40ºC F = -35ºC G = -30ºC H = -25ºC I = -20ºC |
J = -15ºC
K = -10ºC L = 0ºC M = +60ºC N = +70ºC O = +80ºC P = +85ºC Q = +90ºC |
5E-14 @ 1s
7E-15 @ 10s 5E-15 @ 100s 2E-15 @ 1000s 2E-16 @ 10,000s |
<= -145dBc/Hz @ 10Hz
<= -155dBc/Hz @ 100Hz <= -160dBc/Hz @ 1kHz <= -165dBc/Hz @ >= 10kHz |
Frequencies: 5M, 10M or 100M
Output: Sinewave RF output ports: 8 or 16 AC 230V supply Slim 19” rack with 1HU |
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