Overview
The AD8346ARUZ is a silicon RFIC (Radio Frequency Integrated Circuit) I/Q modulator designed by Analog Devices Inc. It operates within the frequency range of 0.8 GHz to 2.5 GHz, making it suitable for various high-performance RF applications. The device is known for its excellent phase accuracy and amplitude balance, which are crucial for direct modulation to RF signals. The AD8346 features a differential LO (Local Oscillator) input applied to a polyphase network phase splitter, ensuring accurate phase quadrature. Buffer amplifiers are integrated to enhance the signal-to-noise ratio, and the outputs are summed at an amplifier designed to drive a 50 Ω load.
Key Specifications
| Specification | Value |
|---|---|
| Frequency Range | 0.8 GHz to 2.5 GHz |
| Supply Voltage | 2.7 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Package Style | 16-lead TSSOP |
| Quadrature Phase Error | 1° rms typical |
| Output Compression Level | 0 dBm at 0.8 GHz |
| Noise Floor | -147 dBm/Hz typical |
| Modulation Bandwidth | 70 MHz typical |
| Quiescent Operating Current | 45 mA typical |
| Standby Current | 1 μA typical |
| LO Drive Level | -6 dBm to -12 dBm |
Key Features
- Excellent phase accuracy and amplitude balance for high-performance direct modulation to RF signals.
- Differential LO input with a polyphase network phase splitter for accurate phase quadrature.
- Buffer amplifiers to improve the signal-to-noise ratio.
- Differential V-to-I converters connected to baseband inputs for modulation signals.
- Single supply operation with a wide voltage range (2.7 V to 5.5 V).
- Low standby current of 1 μA typical.
- High sideband suppression of -46 dBc at 0.8 GHz.
Applications
- Digital and spread spectrum communication systems.
- Cellular/PCS/ISM transceivers.
- Wireless LAN and wireless local loop systems.
- QPSK/GMSK/QAM modulators.
- Single-sideband (SSB) modulators.
- Frequency synthesizers and image reject mixers.
Q & A
- What is the frequency range of the AD8346ARUZ?
The AD8346ARUZ operates within the frequency range of 0.8 GHz to 2.5 GHz.
- What is the supply voltage range for the AD8346ARUZ?
The supply voltage range is 2.7 V to 5.5 V.
- What is the typical quadrature phase error of the AD8346ARUZ?
The typical quadrature phase error is 1° rms.
- What is the output compression level at 0.8 GHz?
The output compression level at 0.8 GHz is 0 dBm.
- What is the noise floor of the AD8346ARUZ?
The noise floor is -147 dBm/Hz typical.
- What is the modulation bandwidth of the AD8346ARUZ?
The modulation bandwidth is 70 MHz typical.
- What is the quiescent operating current of the AD8346ARUZ?
The quiescent operating current is 45 mA typical.
- What is the standby current of the AD8346ARUZ?
The standby current is 1 μA typical.
- What is the recommended LO drive level for the AD8346ARUZ?
The recommended LO drive level is between -6 dBm and -12 dBm.
- In what types of applications is the AD8346ARUZ commonly used?
The AD8346ARUZ is commonly used in digital and spread spectrum communication systems, cellular/PCS/ISM transceivers, wireless LAN, and other RF applications.
