Overview
The AD8345ARE is a silicon RFIC (Radio Frequency Integrated Circuit) quadrature modulator designed and manufactured by Analog Devices Inc. This device is optimized for operation within the frequency range of 140 MHz to 1000 MHz, making it suitable for a variety of wireless communication and broadband applications. The AD8345ARE is known for its excellent phase accuracy and amplitude balance, which are crucial for high-performance direct modulation of IF (Intermediate Frequency) carriers.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Frequency | 140 MHz to 1000 MHz |
| P1dB (Output Power at 1 dB Compression) | +2.5 dBm @ 800 MHz |
| Noise Floor | −155 dBm/Hz |
| RMS Phase Error (IS95) | 0.5 degrees |
| Amplitude Balance | 0.2 dB |
| Supply Voltage | 2.7 V to 5.5 V |
| Active Current | 50 mA to 78 mA |
| Standby Current | 70 μA |
| Package Type | 16-lead TSSOP_EP |
| Temperature Range | −40°C to +85°C |
Key Features
- Excellent phase accuracy and amplitude balance for high-performance direct modulation.
- Single 2.7 V to 5.5 V supply voltage.
- Pin-compatible with AD8346 and AD8349.
- Low noise floor of −155 dBm/Hz.
- High output power with +2.5 dBm P1dB at 800 MHz.
- Fast enable time: Turn-on within 2.5 μs and turn-off within 1.5 μs.
- Internal ESD protection diodes.
Applications
- Cellular communication systems: GSM, CDMA, W-CDMA, PCS, and ISM transceivers.
- Fixed broadband access systems: LMDS/MMDS.
- Wireless LAN and wireless local loop systems.
- Digital TV and CATV modulators.
- Single sideband upconverters.
- Hybrid phase-locked loops with direct digital synthesizers.
Q & A
- What is the operating frequency range of the AD8345ARE? The AD8345ARE operates from 140 MHz to 1000 MHz.
- What is the typical output power at 1 dB compression (P1dB) for the AD8345ARE? The P1dB is +2.5 dBm at 800 MHz.
- What is the noise floor of the AD8345ARE? The noise floor is −155 dBm/Hz.
- What is the RMS phase error of the AD8345ARE? The RMS phase error is 0.5 degrees (IS95).
- What is the amplitude balance of the AD8345ARE? The amplitude balance is 0.2 dB.
- What is the supply voltage range for the AD8345ARE? The supply voltage range is 2.7 V to 5.5 V.
- What is the package type of the AD8345ARE? The AD8345ARE is supplied in a 16-lead TSSOP_EP package.
- What are the typical applications of the AD8345ARE? The AD8345ARE is used in cellular communication systems, fixed broadband access systems, wireless LAN, wireless local loop, digital TV, and CATV modulators.
- How long does it take for the AD8345ARE to turn on and turn off? The turn-on time is within 2.5 μs, and the turn-off time is within 1.5 μs.
- Does the AD8345ARE have internal ESD protection? Yes, the AD8345ARE has internal ESD protection diodes.
