BROADBAND DISTRIBUTED AMPLIFIER

Transcription

1 ADM1-26PA The ADM1-26PA is a complete LO driver solution for use with all Marki mixers up to 26. GHz. This single-stage packaged GaAs MMIC distributed amplifier integrates all required biasing circuitry. It offers 12 db typical gain and 21 dbm saturated output power, which is suitable for driving all L, M, I, and H mixers. In saturation it produces a square wave that is optimal for driving a T3 with the highest linearity. The amplifier is operated with a +3V to +7 V positive bias and an optional current reducing negative voltage. While optimized as a mixer LO driver, it is suitable for many applications in test and measurement and laboratory applications. Features Broadband Ω Matching Unconditionally Stable Optimized for use as a T3 LO buffer amplifier Suitable for driving L, M, I, and H diode mixers Optional Positive Only Bias Operation Integrated Blocking Capacitors and Inductors 3 rd and th Harmonic Generation Electrical Specifications - Specifications guaranteed from - to +8 C, measured in a -Ohm system. Parameter Frequency Min Typ Max (GHz) Input for Saturated Output (dbm) Output 1 db Compression (dbm) +17 Saturated Output Power with negative bias (dbm) Small Signal Gain (db) 12 Input Return Loss (db) Output Return Loss (db) 17 Noise Figure (db) 4 Third Order Output Intercept Point (dbm) + Bias Requirements (ma) Vd: +3. to +7. / Vg: -.2 to -.3 Volts 16 Vd: +3. to +7. / Vg: Volts Part Number Options Model Number Description Green Status ADM1-26PA 1 MHz to 26. GHz Amplifier RoHS 1 Note: For port locations and I/O designations, refer to the drawings on page 6 of this document. GaAs MMIC devices are susceptible to Electrostatic Discharge. Use proper ESD precautions when handling these items. 2 Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

2 Return Loss (db) BROADBAND DISTRIBUTED AMPLIFIER Page 2 ADM1-26PA Frequency MHz to 26. GHz Typical Performance Positive Bias Only 2 1 Saturated Output Power (dbm) +3 Volt/ Volt Bias +7 Volt/ Volt Bias Small Signal Return Loss (db) Input, +3 Volt/ Volt Bias Output +3 Volt/ Volt Bias Input, +7 Volt/ Volt Bias Output, +7 Volt/ Volt Bias Small Signal Gain (db) Reverse Isolation (db) Volt/ Volt Bias +7 Volt/ Volt Bias Volt/ Volt Bias +7 Volt/ Volt Bias Even Harmonic Generation (dbm) +1 dbm Power +3V/V 2nd Harmonic +7V/V, 2nd Harmonic +3V/V 4th Harmonic +7V/V 4th Harmonic Odd Harmonic Generation (dbm) +1 dbm Input Power +3V/V 3rd Harmonic +7V/V 3rd Harmonic +3V/V th Harmonic +7V/V th Harmonic Output Output 2 Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

3 Return Loss (db) BROADBAND DISTRIBUTED AMPLIFIER Page 3 ADM1-26PA Frequency MHz to 26. GHz 2 1 Output P1dB (dbm) +3 Volt/ Volt Bias +7 Volt/ Volt Bias Input IP3 (dbm) +3 Volt/ Volt Bias +7Volt/ Volt Bias Input P1dB (dbm) +3 Volt/ Volt Bias +7 Volt/ Volt Bias Output IP3 (dbm) +3 Volt/ Volt Bias +7 Volt/ Volt Bias Saturated Output Power (dbm) Typical Performance Positive and Negative Bias +3 Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Small Signal Return Loss (db) Input, +3 Volt/-.3 Volt Bias Output +3 Volt/-.3 Volt Bias Input, +7 Volt/-.3 Volt Bias Output, +7 Volt/ -.3 Volt Bias Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

4 Page 4 ADM1-26PA Frequency MHz to 26. GHz Small Signal Gain (db) Reverse Isolation (db) Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Even Harmonic Generation (dbm) +1 dbm Power +3V/-.3V 2nd Harmonic +7V/-.3V 2nd Harmonic +3V/-.3V 4th Harmonic +7V/-.3V 4th Harmonic Odd Harmonic Generation (dbm) +1 dbm Input Power +3V/-.3V 3rd Harmonic +7V/-.3V 3rd Harmonic +3V/-.3V th Harmonic +7V/-.3V th Harmonic Output Output Input IP3 (dbm) +3 Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Output IP3 (dbm) +3 Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

5 ADM1-26PA Page Frequency MHz to 26. GHz Input P1dB (dbm) Output P1dB (dbm) Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Volt/-.3 Volt Bias +7 Volt/-.3 Volt Bias Typical Performance All Bias Noise Figure(dB) 3 3 Current Consumption (ma) Negative Bias = V, Pin = -1 dbm Negative Bias=-.3V, Pin = -1 dbm Negative Bias =, Pin = 1 dbm Negative Bias = -.3 V, Pin = 1 dbm Vd (V) Group Delay (ps) Low End Reponse(dB) Frequency (MHz) 2 Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

6 Page 6 Outline Drawing ADM1-26PA Frequency MHz to 26. GHz. [.21].72 [18.29] 1.12 [28.4].41 [1.41] SMA Male Connector.7 [12.88]. [1.4].9 [14.99] OUT microwave +7V -.3V ADM126PA D/C IN.3 [13.9].37 [9.3].3 [8.].8 [2.4] SMA Female Connector Absolute Maximum Ratings Parameter Maximum Rating Positive Bias Voltage 9 V Positive Bias Current 28 ma Negative Bias Voltage -2 V Negative Bias Current. ma RF Input Power + dbm Power Dissipation 2. W ESD (Human Body Model) Class Operating Temperature -ºC to +8ºC Storage Temperature -6ºC to +ºC 2 Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

7 ADM1-26PA Page 7 Application Information Frequency MHz to 26. GHz Positive Drain Bias 3 to 7 V ma Input LO Signal RF DC/RF Ground Negative Gate Bias to -. V <. ma (Adjust for Positive Drain Current) IF T3-2IS IP3 (dbm) 2 dbm sine wave dbm into ADM1-26PA MM1-6HS Conversion Loss (db) + dbm Synthesizer LO 3 dbm into ADM1-26PA Applications Information Application Input Power Comments T3 LO Driver Broadband Mixer LO Driver General Purpose Linear RF Amplifier +1 to + dbm - to +1 dbm <+ dbm Ideal choice for driving all T3 mixers down to 1 MHz. When driven beyond the 1 db compression point (with inputs higher than 1 dbm), it will create a saturated square wave output that improves the IP3, spurious suppression, and 1 db compression of the T3 mixer, especially at lower frequencies. Can be used to drive any double balanced mixer with an H diode or lower (including L, I, and M diodes). For this purpose saturated operation is not preferred, and may cause undesirable results. Input power should be kept in the - to +1 dbm range to provide appropriate output power, depending on the mixer. Can be used as a general purpose amplifier for RF signals. Input power should be kept below + dbm for linear operation. 2 Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218

8 Page 8 ADM1-26PA Frequency MHz to 26. GHz Biasing and Operation Positive Bias (Vd) Bias supply on Vd should be voltage limited below 9 V and current limited below ma at all times. The operational bias voltage should be between 3 V and 7 V for full gain, efficiency, and linearity. In general linearity and output power will increase marginally with increased voltage from 3 to 7 V. DC/RF Ground The ground lug or case should be attached to the DC power supply ground at all times. Negative Bias (Vg)- Bias on these pins is recommended. Application of a negative bias can reduce the current draw from the positive supply, slightly improve small signal gain at higher frequencies, significantly improve even order harmonic suppression, and improve nonlinear performance of a T3 mixer. Due to the reduced current, it may also extend the lifetime of the amplifier. The amplifier is designed to perform optimally when the negative bias voltage is adjusted so that the amplifier draws ma on the positive supply. Heat Sinking Heat sinking is recommended to extend the lifetime of the amplifier whenever the amplifier will be operational for extended periods of time, particularly at elevated temperatures or when the negative bias is grounded. DATA SHEET NOTES: 1. Specifications are subject to change without notice. Contact Marki Microwave for the most recent specifications and data sheets. Marki Microwave reserves the right to make changes to the product(s) or information contained herein without notice. Marki Microwave makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Marki Microwave assume any liability whatsoever arising out of the use of or application of any product. 2 Vineyard Court, Morgan Hill, CA 937 Ph: Fax info@markimicrowave.com 3/7/218