Overview
The AD8339ACPZ-R7, produced by Analog Devices Inc., is a quad I/Q demodulator and phase shifter integrated into a single, ultracompact 40-lead chip scale package. This device is optimized for use with low noise preamplifiers having differential outputs, particularly those in the AD8332/AD8334/AD8335 family of variable gain amplifiers (VGAs). It combines continuous wave (CW) analog beamforming (ABF) and I/Q demodulation, making it highly suitable for applications in high-density ultrasound scanners, phased array systems, radar, adaptive antennas, and communication receivers.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 40-VFQFN Exposed Pad, CSP |
| Supply Voltage | ±5 V |
| Power Consumption | 73 mW/channel (290 mW total) |
| LO Frequency Range | 0 Hz to 200 MHz |
| RF Frequency Range | 0 Hz to 50 MHz |
| Baseband Frequency Range | Determined by external filtering |
| Output Dynamic Range | 160 dB/Hz |
| LO Drive | >0 dBm (50 Ω), single-ended sine wave |
| Phase Increment | 16 programmable 22.5° phase increments per channel |
| Quadrature Phase Error | ±1° |
| I/Q Amplitude Imbalance | ±0.05 dB |
| Operating Temperature Range | −40°C to +85°C |
Key Features
- Quad I/Q demodulator with separate RF inputs for each channel, allowing independent operation with a common local oscillator (LO).
- Integrated phase shifter with 16 programmable 22.5° phase increments per channel, enabling precise phase alignment and summation of multiple receiver channels.
- High accuracy in quadrature demodulation with phase accuracy of ±1° and amplitude balance of ±0.25 dB.
- Low power consumption with 73 mW per channel and total power-down capability via SPI interface.
- Compact 40-lead chip scale package, suitable for high-density applications.
Applications
- Medical imaging, particularly in CW ultrasound beamforming.
- Phased array systems.
- Radar systems.
- Adaptive antennas.
- Communication receivers.
Q & A
- What is the primary function of the AD8339ACPZ-R7? The AD8339ACPZ-R7 is a quad I/Q demodulator and phase shifter, combining continuous wave (CW) analog beamforming and I/Q demodulation in a single device.
- What is the package type of the AD8339ACPZ-R7? The AD8339ACPZ-R7 is packaged in a 40-VFQFN Exposed Pad, CSP.
- What is the supply voltage range for the AD8339ACPZ-R7? The supply voltage range is ±5 V.
- What is the power consumption per channel? The power consumption is 73 mW per channel, with a total of 290 mW for all channels.
- What is the LO frequency range of the AD8339ACPZ-R7? The LO frequency range is from 0 Hz to 200 MHz.
- What is the RF frequency range of the AD8339ACPZ-R7? The RF frequency range is from 0 Hz to 50 MHz.
- How many programmable phase increments are available per channel? There are 16 programmable 22.5° phase increments per channel.
- What is the quadrature phase error of the AD8339ACPZ-R7? The quadrature phase error is ±1°.
- What is the operating temperature range of the AD8339ACPZ-R7? The operating temperature range is from −40°C to +85°C.[
- Can the AD8339ACPZ-R7 be powered down via the SPI interface? Yes, the AD8339ACPZ-R7 can be powered down via the SPI interface for each channel and the complete chip.[
