BeRex, a company that designs, develops and supports innovative RF and microwave semiconductors in bare die and surface mount packages for current and next-generation wireless communication equipment, has released four new amplifier products: BVA1761, BVA1762, BVA2761 and BVA2762.
These Digital Variable Gain Amplifiers (DVGAs) are designed for glitch-safe attenuation state transitions, highly accurate 7-bit digitally-controlled attenuation over a 31.75 dB range, with 0.25 dB steps, while maintaining high linearity. The DVGAs operate at maximum frequencies of either 6 GHz, or 8 GHz. The DVGAs are powered by 5 V, 4 V and 3.3 V supplies, which reduce their overall power consumption, and are packaged in the space-saving 4 mm x 4 mm x 0.9 mm, 24-Lead QFN and 5 mm x 5 mm x 0.9 mm, 32-Lead QFN.
Designed with outstanding RF characteristics, the DVGAs are primarily intended for 5G/4G/3G wireless infrastructure equipment, satellite radio, and other high-end wireless applications. The BVA1761, BVA1762, BVA2761 and BVA2762 offer the flexibility to program their gain-control through serial mode only and 2-3 bit addressable function interfaces to minimize control lines that support very fast switching speeds.
Key Features of the DVGA's
- Power requirements
- BVA1761= 5.0 V, 83 mA / 3.3 V, 48 mA
- BVA1762= 5.0 V, 110 mA / 4.0 V, 55 mA
- BVA2761= 5.0 V, 166 mA / 3.3 V, 96 mA
- BVA2762= 5.0 V, 215 mA / 4.0 V, 110 mA
- Frequency bands
- BVA1761= 50 MHz to 6000 MHz
- BVA1762= 500 MHz to 8000 MHz
- BVA2761= 50 MHz to 6000 MHz
- BVA2762= 500 MHz to 8000 MHz
- Gain / Attenuation
- BVA1761 = 17.0 dB @ 3.5 GHz / 0.25 dB Steps up to 31.75 dB
- BVA1762 = 19.7 dB @ 3.5 GHz / 0.25 dB Steps up to 31.75 dB
- BVA2761 = 34.8 dB @ 3.5 GHz / 0.25 dB Steps up to 31.75 dB
- BVA2762 = 40.5 dB @ 3.5 GHz / 0.25 dB Steps up to 31.75 dB
- High P1dB (Output power at 1dB compression) / OIP3 (Output third order intercept point)
- BVA1761 = 20.0 dBm / 37.5 dBm @ 3.5 GHz
- BVA1762 = 20.7 dBm / 34.9 dBm @ 3.5 GHz
- BVA2761 = 20.7 dBm / 36.6 dBm @ 3.5 GHz
- BVA2762 = 21.2 dBm / 35.6 dBm @ 3.5 GHz
- Gain accuracy
- BVA1761= ± (0.25 + 5.0% of gain setting) @ 3.5 GHz
- BVA1762= ± (0.25 + 5.0% of gain setting) @ 3.5 GHz
- BVA2761= ± (0.25 + 5.0% of gain setting) @ 3.5 GHz
- BVA2762= ± (0.25 + 5.0% of gain setting) @ 3.5 GHz
- Programming modes
- Serial mode only
- 2-3 bit addressable function to minimize Control line
- Glitch-safe attenuation state transitions
- Power-UP states Settings
- Package size
- BVA1761/BVA1762= 4 mm x 4 mm x 0.9 mm, 24-Lead QFN
- BVA2761/BVA2762= 5 mm x 5 mm x 0.9 mm, 32-Lead QFN
Pricing and Availability
The BVA1761, BVA1762, BVA2761 and BVA2762 are currently available and are competitively priced. Samples are available on request.
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