# MEMS Oscillator, 125 MHz, SMD, 3.2mm x 2.5mm, 25 ppm, 3.3 V, ASEMP, CMOS

![Product image](https://novapart.co/image/farnell:1960692/)

**URL**: https://novapart.co/products/ASEMPC-125.000MHZ-LR-T/mems-oscillator-125-mhz-smd-32mm-x-25mm-25-ppm-33
**SKU**: ASEMPC-125.000MHZ-LR-T
**Manufacturer**: ABRACON
**Category**: Crystals & Oscillators || Oscillators || MEMS Oscillators
**Price**: €2.2500
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Frequency Nom | 125MHz |
| Product Range | ASEMP |
| Oscillator Case | SMD, 3.2mm x 2.5mm |
| Supply Voltage Nom | 3.3V |
| Frequency Stability + / - | 25ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Oscillator Output Compatibility | CMOS |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1960692/)

**ASEMP series Plastic SMD MEMs Clock Oscillator** 

## **Description** 

The Abracon ASEMP series is a programmable MEMS oscillator, with a continuous operating power supply ranging from 2.25V to 3.6V. This series features low power consumption, a wide frequency range, excellent phase noise, tight stabilities, and short lead times for industrial, consumer, and other applications. The ASEMP series comes in a 3.2 x 2.5 mm compact package with CMOS, HCSL, LVDS, or LVPECL output logic. 

## **Features** 

- Low Power Consumption for high-speed communication 

- Exceptional Stability Over Temp. at -40 to +85°C, ±10ppm 

- Extended Operating Temperature at -55 to +125°C, ±25ppm 

- MIL-STD-883 shock and vibration compliant 

- Durable QFN Plastic Compact Packaging 

- Enable or Disable Tri-state function 

- Low jitter (Period jitter RMS and Phase jitter RMS) 

   - **Applications**  Storage Area Networks (SATA, SAS, Fiber Channel) 

   - Passive Optical Networks (EPON, 10G-EPON, GPON, 10G-PON) 

   - Ethernet (1G, 10GBASE-T,/KR/LR/SR, FCoE) 

   - PCI Express 

   - Display port 

- High power supply noise reduction, -50dBc 

- REACH/RoHS II Compliant | MSL Level 1 

## **Key Electrical Specifications  - Continuous Vdd: 2.5V - 0.25V to 3.3V + 0.3V** 

|**Parameters**|**Parameters**|**Min.**|**Typ. **|**Max.**<br>~~ee~~|**Units**<br>~~ee ee~~|**Notes**<br>~~ee~~|
|---|---|---|---|---|---|---|
|Frequency Range<br>~~|~~|CMOS<br>~~ee~~|2.3000<br>~~ee~~|~~ee~~|170.0000<br>~~ee~~<br>~~ee~~|MHz<br>~~ee ee~~<br>~~|~~ <br>~~|~~ <br>~~|~~<br>~~fff~~|-20 ~ +70°C<br>-40~+85°C<br>~~ee~~|
||CMOS<br>~~ee~~|3.3000<br>~~ee~~<br>~~|~~|~~ee~~<br>~~|~~|170.0000<br>~~ee~~<br>~~ee~~<br>~~|~~||-40 ~ +105°C<br>-55 ~ +125°C<br>~~ee~~<br>~~ee~~<br>~~EP~~|
||LVPECL<br>~~ee~~<br>~~pf~~|2.3000<br>~~ee~~<br>~~pf~~<br>~~|~~<br>~~|~~|~~ee~~<br>~~pf~~<br>~~|~~<br>~~|~~|460.0000<br>~~ee~~<br>~~pf~~<br>~~|~~<br>~~|~~||-20 ~ +70°C<br>-40 ~ +85°C<br>-40 ~ +105°C<br>~~ee~~<br>~~EP~~<br>~~EP~~|
||LVDS<br>~~pf~~<br>~~pf~~<br>~~ff~~|2.3000<br>~~pf~~<br>~~|~~<br>~~pf~~<br>~~|~~<br>~~ff~~|~~pf~~<br>~~|~~<br>~~pf~~<br>~~|~~<br>~~ff fff~~|460.0000<br>~~pf~~<br>~~|~~<br>~~pf~~<br>~~|~~<br>~~fff~~||-20 ~ +70°C<br>-40 ~ +85°C<br>-40 ~ +105°C<br> ~~EP~~<br>~~EP~~<br>~~fff~~|
||HCSL<br>~~pf~~<br>~~|~~<br>~~ff~~|2.3000<br>~~pf~~<br>~~|~~<br>~~|~~<br>~~ff~~|~~pf~~<br>~~|~~<br>~~|~~<br>~~ff fff~~|460.0000<br>~~pf~~<br>~~|~~<br>~~|~~<br>~~fff~~||-20 ~ +70°C<br>-40 ~ +85°C<br>-40 ~ +105°C<br> ~~EP~~<br>~~|~~<br>~~fff~~|
|OperatingTemperature<br>~~|~~<br>~~ff~~||-20<br>~~|~~<br>~~ff~~|~~|~~<br>~~ff fff~~|+70<br>~~|~~<br>~~fff~~|°C<br>~~|~~<br>~~fff~~|See options<br>~~|~~<br>~~fff~~|
|Storage Temperature<br>~~ff~~<br>~~De~~||-55<br>~~ff~~<br>~~De~~<br>~~ee~~|~~ff fff~~<br>~~De~~<br>~~ee~~|+150<br>~~fff~~<br>~~De~~<br>~~ee~~|°C<br>~~fff~~<br>~~De~~<br>~~ee~~|~~fff~~<br>~~De~~|
|Overall FrequencyStability [Note 1]<br>~~ff~~<br>~~ee~~||-50<br>~~ff~~<br>~~ee~~<br>~~ee~~|~~ff fff~~<br>~~ee~~<br>~~ee~~|+50<br>~~fff~~<br>~~ee~~<br>~~ee~~|ppm<br>~~fff~~<br>~~ee~~<br>~~ee~~|See options<br>~~fff~~<br>~~ee~~|
|SupplyVoltage(Vdd)<br>~~ee~~||+2.25<br>~~ee~~<br>~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~<br>~~ee~~|+3.6<br>~~ee~~<br>~~ee~~<br>~~ee~~|V<br>~~ee~~<br>~~ee~~<br>~~ee~~|~~ee~~|
|StartupTime<br>~~ee~~||~~ee ~~<br>~~ee~~<br>~~ee~~|~~ee ~~<br>~~ee~~<br>~~ee~~|5<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|ms<br> ~~ee~~<br>~~ee~~<br>~~ee~~|~~ee~~|
|Enable Time<br>~~ee~~||~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|20<br>~~ee~~<br>~~ee~~|ns<br>~~ee~~<br>~~ee~~|STD(Tri-state)<br>~~ee~~|



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**ASEMP series** 

**Plastic SMD MEMs Clock Oscillator** 

## **Key Electrical Specifications Cont. - CMOS, LVPECL, LVDS, and HCSL** 

|**Parameters**|**Min.**|**Min.**|**Typ. **|**Max.**|**Max.**|**Unit**|**Notes**|
|---|---|---|---|---|---|---|---|
|Disable Time|||||5|ns||
|Disable Current||20|||22|mA|STD (Tri-state)|
|Tri-state Function<br>(Enable/Disable)|"1" (VIH≥0.75*Vdd) or Open: Oscillation<br>"0" (VIL<0.25*Vdd): Hi Z|||||V|40kΩ pull-up resistor<br>embedded|
|Aging|-5.0|||+5.0||ppm|Firstyear|



Note 1: Includes post reflow frequency accuracy, temperature stability, load pulling and power supply variation. 

## **Key Electrical Specifications - CMOS** 

|**Parameters**|**Parameters**|**Min.**|**Typ.**|**Max.**|**Units**<br>||**Notes**|
|---|---|---|---|---|---|---|
|SupplyCurrent(Idd)<br>~~es~~<br>~~a~~<br>~~ee~~||~~es~~<br>~~ee~~|31<br>~~es~~<br>~~ee~~|35<br>~~es~~<br>~~eee~~|mA<br>~~es~~<br>~~eee~~|CL=15pF, 125MHZ<br>~~es~~|
|Output Logic Level<br>~~es~~<br>~~a~~|VOH<br>~~es~~<br>~~ee~~|0.9*Vdd<br>~~es~~<br>~~ee~~|~~es~~<br>~~ee~~|~~es~~<br>~~eee~~<br>~~ee~~|V<br>~~es~~<br>~~eee~~|I=±6mA<br>~~es~~|
||VOL<br>~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|0.1*Vdd<br>~~eee~~<br>~~ee~~<br>~~ee~~|V<br>~~eee~~<br>~~ee~~||
|Rise Time<br>~~a~~<br>~~f+~~|Tr<br>~~ee~~<br>~~f+~~<br>~~se~~|~~ee~~<br>~~f+~~<br>~~se~~|1.1<br>~~ee ~~<br>~~f+~~|2.0<br> ~~eee~~<br>~~ee~~<br>~~f+~~|ns<br>~~eee~~<br>~~f+~~|CL=15pF<br>20% to 80%|
|Fall Time<br>~~f+~~<br>~~es~~|Tf<br>~~f+~~<br>~~es~~<br>~~se~~|~~f+~~<br>~~es~~<br>~~se~~|1.3<br>~~f+~~<br>~~es~~|2.0<br>~~f+~~<br>~~es~~|ns<br>~~f+~~<br>~~es~~||
|DutyCycle<br>~~es~~<br>~~se~~<br>~~GC~~||45<br>~~es~~<br>~~se~~<br>~~GC~~<br>~~ff~~|~~es~~<br>~~GC~~<br>~~ff~~|55<br>~~es~~<br>~~GC~~<br>~~ff~~|%<br>~~es~~<br>~~GC~~<br>~~p~~|~~GC~~<br>~~p~~|
|Integrated Phase Jitter ( JPH)<br>~~GC~~||~~GC~~<br>~~ff~~<br>~~ff~~|0.30<br>~~GC~~<br>~~ff~~<br>~~ff~~|2<br>~~GC~~<br>~~ff~~<br>~~ff~~|ps<br>~~GC~~<br>~~p~~<br>~~p~~<br>~~p~~|200kHz ~20MHz@125MHz<br>~~GC~~<br>~~p~~<br>~~p~~|
|||~~ff~~<br>~~ff~~<br>~~ff~~|0.38<br>~~ff~~<br>~~ff~~<br>~~ff~~|2<br>~~ff~~<br>~~ff~~<br>~~ff~~||100kHz ~ 20MHz@125MHz<br>~~p~~<br>~~p~~<br>~~p~~|
|||~~ff~~<br>~~ff~~|1.70<br>~~ff~~<br>~~ff~~|2<br>~~ff~~<br>~~ff~~||12kHz ~ 20MHz@125MHz<br>~~p~~<br>~~p~~|
|Period Jitter RMS(JPER)<br>~~ee~~||~~ff~~<br>~~ee~~|3.0<br>~~ff~~<br>~~ee~~|~~ff~~<br>~~ee~~|ps<br>~~p~~<br>~~ee~~|~~p~~<br>~~ee~~|



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**ASEMP series** 

**Plastic SMD MEMs Clock Oscillator** 

## **Key Electrical Specifications - LVPECL** 

|**Parameters**|**Parameters**|**Min.**|**Typ.**|**Max.**|**Units**|**Notes**|
|---|---|---|---|---|---|---|
|Supply Current  (Idd)<br>~~es~~||~~es~~|56.5<br>~~es~~|58<br>~~es~~|mA<br>~~es~~|RL= 50Ω<br>~~es~~|
|Output Logic<br>Level<br>~~a~~|VOH<br>~~ee~~|Vdd-1.08<br>~~ee~~|~~ee~~|~~ee~~|V|RL= 50Ω|
||VOL<br>~~ee~~<br>~~es~~|~~ee~~<br>~~es~~|~~ee~~<br>~~es~~|Vdd-1.55<br>~~ee~~<br>~~es~~|V<br>~~es~~||
|Peak to Peak Output Swing (Vpp)<br>~~a~~<br>~~es~~<br>~~ee~~||~~ee~~|800<br>~~eee~~|~~eee~~|mV<br>~~el~~|Single ended|
|Rise Time:<br>~~es~~<br>~~es~~|Tr<br>~~ee~~|~~ee~~|250<br>~~eee~~|~~eee~~|ps<br>~~el~~|RL=50Ω , CL=0pF<br>20% to 80%|
|Fall Time:<br>~~es~~<br>~~es~~|Tf<br>~~ee~~|~~ee~~|250<br>~~eee~~|~~eee~~|||
|Duty Cycle<br>~~es~~<br>~~ee~~<br>~~es~~<br>~~a~~||48<br>~~ee ~~|~~eee~~|52<br>~~eee ~~|%<br> ~~el~~|Differential|
|Integrated Phase Jitter ( JPH)<br>~~oo~~||~~es~~|0.25<br>~~es~~|2<br>~~es~~|ps|200kHz~20MHz@156.25MHz|
|||~~es~~<br>~~ee~~|0.38<br>~~es~~<br>~~ee~~|2<br>~~es~~<br>~~ee~~||100kHz~20MHz@156.25MHz|
|||~~ee~~|1.70<br>~~ee~~|2<br>~~ee~~||12kHz ~ 20MHz@156.25MHz|
|Period Jitter RMS (JPER)<br>~~oo~~|||2.5||ps||



## **Key Electrical Specifications - LVDS** 

|**Parameters**|**Parameters**|**Min.**|**Typ. **|**Max.**|**Units**|**Notes**|
|---|---|---|---|---|---|---|
|SupplyCurrent(Idd)<br>~~es~~||~~es~~|29<br>~~es~~|32<br>~~es~~|mA<br>~~es~~|RL= 100Ω<br>~~es~~|
|Output Offset Voltage(∆VOS)<br>~~es~~<br>~~ee~~||1.125<br>~~es~~<br>~~ee~~|~~es~~<br>~~ee~~|1.4<br>~~es~~<br>~~ee~~|V<br>~~es~~<br>~~ee~~|RL= 100Ω differential<br>~~es~~<br>~~ee~~|
|Delta Offset Voltage(∆VOS)<br>~~ee~~<br>~~Re~~||~~ee~~<br>~~Re~~|~~ee~~<br>~~Re~~|50<br>~~ee~~<br>~~Re~~|mV<br>~~ee~~<br>~~Re~~|~~ee~~<br>~~Re~~|
|Peak to Peak Output Swing<br>(Vpp)<br>~~Re~~||~~Re~~|350<br>~~Re~~|~~Re~~|mV<br>~~Re~~|Single ended<br>~~Re~~|
|Rise Time:|Tr||200||ps|RL=50Ω , CL=2pF<br>20% to 80%|
|Fall Time:<br>~~ee~~|Tf<br>~~ee~~|~~ee~~|200<br>~~ee~~|~~ee~~|||
|DutyCycle<br>~~ee~~<br>~~ee~~||48<br>~~ee~~<br>~~ee~~<br>~~a~~|~~ee~~<br>~~ee~~<br>~~ee~~|52<br>~~ee~~<br>~~ee~~<br>~~ee~~|%<br>~~ee~~|Differential<br>~~ee~~<br>~~po~~|
|Integrated Phase Jitter ( JPH)||~~a~~<br>~~ee~~|0.28<br>~~ee~~<br>~~ee~~|2<br>~~ee~~<br>~~eee~~|ps|200kHz~20MHz@156.25MHz<br>~~po~~<br>~~po~~|
|||~~a~~<br>~~ee~~<br>~~ee~~|0.40<br>~~ee~~<br>~~ee~~<br>~~ee~~|2<br>~~ee~~<br>~~eee~~<br>~~ee~~||100kHz~20MHz@156.25MHz<br>~~po~~<br>~~po~~<br>~~po~~|
|||~~ee ~~<br>~~ee~~<br>~~ee~~|1.70<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|2<br> ~~eee~~<br>~~ee~~||12kHz ~ 20MHz@156.25MHz<br>~~po~~<br>~~po~~|
|Period Jitter RMS(JPER)<br>~~ee~~||~~ee ~~<br>~~ee~~<br>~~ee~~|2.5<br> ~~ee~~<br>~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|ps<br>~~ee~~|~~po~~<br>~~ee~~|



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**ASEMP series** 

**Plastic SMD MEMs Clock Oscillator** 

## **Key Electrical Specifications - HCSL** 

**Parameters Min. Typ. Max. Units Notes** ~~ee~~ Supply Current  (Idd) 40 42 mA RL= 50Ω VOH 0.725 V Output Logic Level RL= 50Ω VOL 0.1 V ~~a es~~ ~~**e** eG~~ Peak to Peak Output Swin ~~ce~~ g (Vpp) ~~ee~~ 750 ~~ee~~ mV Single ended Rise Time: Tr 200 400 RL=50Ω , CL=2pF ps Fall Time: Tf 200 400 20% to 80% ~~ee~~ ~~**e**~~ Duty Cycle ~~e ee ee~~ 48 ~~eeG ce~~ 52 ~~a~~ % Differential ~~a~~ 0.25 2 200kHz ~ 20MHz@156.25MHz Integrated Phase Jitter ( JPH ) ~~a~~ 0.37 2 ps 100kHz ~ 20MHz@156.25MHz ~~a~~ 1.70 2 12kHz ~ 20MHz@156.25MHz ~~ee~~ Period Jitter RMS (JPER) 2.5 ps 

## **Absolute Maximum Ratings** 

|**Item**|**Min.**|**Max.**|**Units**|
|---|---|---|---|
|SupplyVoltage|-0.3|+4.0|V|
|Input Voltage|-0.3|Vdd+0.3|V|
|Junction Temp.||+150|°C|
|Storage Temp.|-55|+150|°C|
|SolderingTemp.||+260|°C|
|ESD<br>HBM<br>MM<br>CDM||4,000<br>400<br>1,500|V|



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**ASEMP series Plastic SMD MEMs Clock Oscillator** 

**Key Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V)** 

## **CMOS OUTPUT** 

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**ASEMP series Plastic SMD MEMs Clock Oscillator** 

## **LVPECL OUTPUT** 

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**ASEMP series Plastic SMD MEMs Clock Oscillator** 

## **LVDS OUTPUT** 

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## **ASEMP series Plastic SMD MEMs Clock Oscillator** 

## **HCSL OUTPUT** 

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ASEMP series<br>Plastic SMD MEMs Clock Oscillator<br>Options and Part Identification (left blank if standard)<br>ASEMP        -         MHz-                -         -<br>Out C : CMOS  put Type  Frequency in MHz Operating Temp.  Overall  Tri-state (Pin 1) Packaging<br>e.g. 14.3181 MHz  Blank: -20°C ~ +70°C  Freq. Stability Blank: Tri-state  Blank: Bulk<br>LP : LVPECL LV : LVDS  (Maximum 4 digits after decimal)  X: -40°C ~ +105°C L: -40°C ~ +85°C  Blank: ±50Y: ±10ppm* ppm  T: Tape & Reel (1kpcs / reel)<br>HC : HCSL  Z**: -55°C ~ +125°C  R: ±25 ppm<br>CotLot<br>* Temp option L, X or -20°C ~ +70°C, only<br>** CMOS output only<br>**----- End of picture text -----**<br>


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**ASEMP series** 

## **Plastic SMD MEMs Clock Oscillator** 

## **Mechanical Dimensions** 

Note: Recommended using an approximately 0.01uF bypass capacitor between pin 6 and 3. 

## Dimensions: Inches[mm] 

> Disclaimer ~~ee~~ 

|**Pin #**|**Function**|
|---|---|
|1|Tri-State|
|2|NC|
|3|GND|
|4|Output|
|5|NC (CMOS)<br>Output (LVPECL, LVDS, HCSL)|
|6|Vdd|



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**ASEMP series Plastic SMD MEMs Clock Oscillator** 

## **Reflow Profile [JEDEC J-STD-020]** 

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Table 1<br>SnPb Eutectic Process<br>Classification Temperatures (Tc)<br>Package  Volume mm [3  ] Volume mm [3  ]<br>Thickness  <350  >350<br><2.5 mm 235 °C 220 °C<br>>2.5 mm  220 °C 220 °C<br>co<br>Table 2<br>Pb-Free Process<br>Classification Temperatures (Tc)<br>Package  Volume mm [3  ] Volume mm [3  ] Volume mm [3  ]<br>Thickness  <350  350-2000  >2000<br><1.6 mm 260 °C 260 °C 260 °C<br>1.6 mm - 2.5 mm 260 °C 250 °C 245 °C<br>>2.5 mm 250 °C 245 °C 245 °C<br>**----- End of picture text -----**<br>


|**Profile Feature**|**Sn-Pb Eutectic**<br>**Assembly**|**Pb-Free**<br>**Assembly**|
|---|---|---|
|Preheat/soak|||
|Temperature minimum(Tsmin)|100°C|150°C|
|Temperature maximum(Tsmax)|150°C|200°C|
|Time(Tsminto Tsmax) (ts)|60 - 120 sec.|60 - 120 sec.|
|Average ramp-uprate(Tsmaxto TP)|3°C/sec. max|3°C/sec. max|
|Liquidous temperature(TL)|183°C|217°C|
|Time at liquidous(tL)|60 - 150 sec.|60 - 150 sec.|
|Peakpackage bodytemperature(TP)*****|**see Table 1**|**see Table 2**|
|Time(tp**)**** within 5°C of the specified classification temperature(TC)|20 sec.|30 sec.|
|Ramp-down rate(Tpto Tsmax)|6°C/sec. max|6°C/sec. max|
|Time 25°C topeak temperature|6 min. max|8 min. max|
|Reflow cycles|2 max|2 max|



- Tolerance for peak profile temperature (TP) is defined as a supplier minimum and a user maximum. 

- ****** Tolerance for time at peak profile temperature (tp) is defined as supplier minimum and a user maximum. 

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**ASEMP series Plastic SMD MEMs Clock Oscillator** 

## **Packaging** 

T: 1,000pcs/reel (D=180mm) 

|**Tape Specifications(mm)**|**Tape Specifications(mm)**|**Tape Specifications(mm)**|**Tape Specifications(mm)**|**Tape Specifications(mm)**|**Tape Specifications(mm)**|**Tape Specifications(mm)**|**Tape Specifications(mm)**|
|---|---|---|---|---|---|---|---|
|Width|Ao|Bo|Do|D1(Min)|E1|F|Ko|
|12mm|*|*|1.5+0.1/-0.0|1.0|1.75±0.1|5.5±0.05|*|
|Width|P1|P2|P0|T(Max)|T1(Max)|T2(Max)|W(Max)|
|12mm|4.0±0.1|2.0±0.05|4.0±0.1|0.6|0.1|6.5|12.3|
|***Note: Compliant to EIA-481**||||||||



Dimensions: mm 

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**ASEMP series** 

**Plastic SMD MEMs Clock Oscillator** 

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Reel Specifications (mm)<br>Width  Qty/Reel  A  B  C (Min)  D  N  * W1<br>(Nom)  (Min)  (Min)  (Min)<br>12mm  1000  178  1.5  13.0+0.5/-0.2  20.2  50  12.4+2.0/-0.0<br>*Note: Measured at Hub<br>—_<br>**----- End of picture text -----**<br>


Dimensions: mm 

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## Links

- [View this product on Novapart](https://novapart.co/products/ASEMPC-125.000MHZ-LR-T/mems-oscillator-125-mhz-smd-32mm-x-25mm-25-ppm-33)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/abracon/asempc-125-000mhz-lr-t/osc-mems-cmos-125-000mhz-3-2x2/dp/1960692)
---

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