Datasheet HMC-AUH232 (Analog Devices) - 8

HMC-AUH232
v02.0209
GaAs HEMT MMIC MODULATOR DRIVER AMPLIFIER, DC - 43 GHz Device Mounting
• 1 mil diameter wire bonds are used on Vgg1 and Vgg2 connections to the capacitors and 27Ω resistors. • 0.5mil x 3mil ribbon bonds are used on RF connections • Capacitors and resistors on Vgg1 and Vgg2 are used to fi lter low frequency, <800MHz, RF pickup • 35Ω and 50Ω resistors are fabricated on a 5mil alumina substrate and should be suitable for use as a high frequency termination. • For best gain fl atness and group delay variation, eccosorb can be epoxied on the transmission line covering the center 3/4 of the transmission line length. Eccosorb may also be placed partially across the 4 Vg1 pad and 35Ω resistor for improved gain fl atness and group delay variation. (The insertion of the transmission line helps reduce low frequency, <10GHz, gain ripple) • Silver-fi lled conductive epoxy is used for die attachment IP (Backside of the die should be grounded and the GND pads are connected to the backside metal through Vias) H S - C
Device Operation
R These devices are susceptible to damage from Electrostatic Discharge. Proper precautions should be observed during handling, assembly and test. IE The input to this device should be AC-coupled. To provide the typical 8Vpp output voltage swing, a 2.7Vpp AC-cou- IF pled input voltage swing is required. At this output level, the device will be in 1dB to 3dB of compression. L P
Device Power Up Instructions
M 1. Ground the device 2. Bring Vgg1 to -0.5V (no drain current) R A 3. Bring Vgg2 to +1.5V (no drain current) E 4. Bring Vdd to +5V (150mA to 225mA drain current) IV (Initially the drain current will rise sharply with a small drain voltage, but will will fl atten out as Vdd approaches 5V) R • Vgg1 may be varied between -1V and 0V to provide the desired eye crossing point percentage (i.e. 50% crosspoint) and a limited cross point control capability. L D • Vdd may be increased to +5.5V if required to achieve greater output voltage swing. A • Vgg2 may be adjusted between +1.5V and +0.3V to vary the output voltage swing. IC T
Device Power Down Instructions
P 1. Reverse the sequence identifi ed above in steps 1 through 4. E & O V A W O R IC M Information furnish F e o d r pri by An ce, de alog Devic leis vie s rby eli, a eve nd to pla d to be accur ce o ate an r d der relia s ble , pl . Ho ease co wever, no For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other ntact Hittite Microwave Corporation: One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 20 Alpha Road, Chelmsford, MA 01824 Phone rights of third parties that may result from its use. Specifications subject to change without notice. No : 978 Phon -e25 : 7 0 81 - - 3 3 3 29 4 - 3 F 470 ax 0 • O : 978 rder o - nl 25 in 0 e a - t 33 ww 73 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. w.analog.com
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