Transmit variable gain amplifier interfaces RF DACs, transceivers, and SoCs to power amplifiers across variant-dependent frequency ranges from 500 MHz to 5200 MHz. The device operates from a single 5 V supply and integrates a differential RF input, single-ended 50 Ω RF output, RF balun, high-linearity amplifiers, and a glitch-free digital step attenuator. It provides a 31.5 dB attenuation range with 0.5 dB steps and is programmable through a 3-wire or 4-wire SPI interface. The device is specified for a -40°C to +105°C exposed-pad operating temperature range in a 32-lead 5 mm × 5 mm LFCSP-RT package.
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| Frequency range | 500 to 5200MHz |
| Supply voltage | 4.75 to 5.25V |
| Typical supply voltage | 5.0V |
| Power gain | 34.0 to 37.4 typical, variant dependentdB |
| Output 1 dB compression point | 23.5 to 26.1 typical at DSA = 0 dB, variant dependentdBm |
| Output third-order intercept | 38.0 to 42.5 typical at DSA = 0 dB, variant dependentdBm |
| Output second-order intercept | 50 to 74 typical, variant dependentdBm |
| Noise figure | 3.7 to 5.2 typical at DSA = 0 dB, variant dependentdB |
| DSA attenuation range | 31.5dB |
| DSA step size | 0.4 to 0.6, 0.5 typicaldB |
| Input impedance | 50 differentialΩ |
| Output impedance | 50 single-endedΩ |
| Input return loss | 10 min, 15 typ inbanddB |
| Output return loss | 10 min, 18 typ inbanddB |
| Disable to enable settling time | 1 typicalµs |
| Maximum serial clock rate | 25MHz |
| Operating temperature range | -40 to +105, measured at exposed pad°C |
| Thermal resistance, junction to case | 7.4°C/W |
| Package | 32-lead LFCSP-RT, 5 mm × 5 mm × 0.58 mm |
| RoHS | Compliant |
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These are design resources that include the Analog Devices ADL6337
User guide for ADL6337 evaluation boards (EVALZA/B/C/D) featuring 35 dB gain and 0.5 GHz to 5.2 GHz range. Includes setup, ACE software control, and schematics.
