Houston, TexasDeveloping significant RF output power at radar frequencies is no easy task. But, chip supplier Mimix Broadband, Inc. is rolling out a GaAs (gallium arsenide) chipset for X-band radar applications that might make the job less difficult.
Conventional MMIC (microwave monolithic IC) devices in X-band phased-array antenna applications, for example, can comprise a significant portion of a system’s cost. That’s due to the number of elements that dictate the performance level of the overall system.
Mimix says its latest MMIC devices will give you higher power and higher integration in such applications, lowering cost in the process.
However, Mimix adamantly refuses to reveal anything about the pricing specs for these products to the press! Yuk.
Anyway, the supposedly cost-competitive MMIC (microwave monolithic IC) chipset from Mimix comprises four devices. You get a digital attenuator, phase shifter, driver, and PA (power amplifier).
10-W at 11-GHz
For its part, Mimix's XP1006 is a 10-W-plus PA (+40-dBm saturated output power into 50-ohm loads) that comes in either bare die form or packaged. The device, with on-chip gate bias circuitry, comprises a three-stage 8.5-GHz through 11-GHz PA with a large-signal gain of 21-dB.
The XP1006 device uses surface passivation protection, and includes backside via holes and gold metallization to support either conductive epoxy or eutectic solder die-attach.
The XP1014 is a 1-W buffer amplifier that can be used standalone or to drive the XP1006. It’s a two-stage device with a small-signal gain of 18-dB and +31-dBm saturated output power. Like the XP10056, it also includes on-chip gate bias.
A XA1000 digital attenuator and XS1000 phase shifter give your circuits linearity with low phase errors and low RF attenuation.
The XA1000 is a DC through 18-GHz attenuator that has an LSB (least significant bit) value of 0.9-dB. This device is controlled with five LVCMOS (low-voltage CMOS) binary inputs. It operates from a single -7.5-V source. It offers a 27.9-dB attenuation range.
The XS1000 phase shifter operates from 7-GHz through 13-GHz, and is digitally controlled with 6-bit operation. An LSB provides 5.625° of phase shift. Like the XA1000, it uses a single
-7.5-V supply, and requires a digital control voltage of zero to 3.3-V.
Mimix Broadband says engineering samples are available today from stock, with production volumes available within 10 to 12 weeks of order placement.
Click here for a XP1006 datasheet (in Adobe Acrobat .PDF format).
Click here for a XP1014 datasheet (in Adobe Acrobat .PDF format).
Click here for a XA1000 datasheet.
Click here for a XS1000 datasheet.
For more details contact Mimix Broadband, Inc., 10795 Rockley Rd, Houston, Texas 77099. Phone: 281-988-4600. Fax: 281-988-4615
Mimix Broadband, 281-988-4600, www.mimixbroadband.com