Overview
The AD8348ARU-REEL7, produced by Analog Devices Inc., is a broadband quadrature demodulator designed for use in communications receivers. This integrated circuit combines an intermediate frequency (IF) stage, a variable gain amplifier (VGA), and integrated baseband amplifiers. It is capable of performing quadrature demodulation directly from IF to baseband frequencies, making it suitable for a variety of communication systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VPOS1, VPOS2, VPOS3) | 2.7 | 5.5 | V | ||
| LO Input Power | 10 | dBm | |||
| IF Input Power | 18 | dBm | |||
| Noise Figure (Double Sideband) | Maximum gain, from 200 Ω source, FIF = 380 MHz | 10.75 | dB | ||
| Mixer Output Impedance | 40 | Ω | |||
| Gain Control Voltage Range (VGIN) | 0.2 | 1.2 | V | ||
| Operating Temperature Range | -40 | 85 | °C | ||
| Maximum Junction Temperature | 150 | °C |
Key Features
- Broadband quadrature demodulation from 50 MHz to 1000 MHz
- Integrated intermediate frequency (IF) stage, variable gain amplifier (VGA), and baseband amplifiers
- Direct interface with dual-channel ADCs, such as the AD9201
- Low noise figure and high linearity
- Gain control voltage range of 0.2 V to 1.2 V
- Operating temperature range from -40°C to +85°C
- 28-Lead Thin Shrink Small Outline Package (TSSOP)
Applications
- Communications receivers
- Baseband signal processing in wireless communication systems
- Direct conversion receivers
- Homodyne and heterodyne receivers
- Wireless infrastructure and mobile devices
Q & A
- What is the primary function of the AD8348ARU-REEL7?
The AD8348ARU-REEL7 is a broadband quadrature demodulator that performs quadrature demodulation from intermediate frequency (IF) directly to baseband frequencies.
- What is the frequency range of the AD8348ARU-REEL7?
The AD8348ARU-REEL7 operates over a frequency range of 50 MHz to 1000 MHz.
- What type of package does the AD8348ARU-REEL7 come in?
The AD8348ARU-REEL7 is packaged in a 28-Lead Thin Shrink Small Outline Package (TSSOP).
- What is the operating temperature range of the AD8348ARU-REEL7?
The operating temperature range is from -40°C to +85°C.
- Can the AD8348ARU-REEL7 be used with dual-channel ADCs?
- What is the noise figure of the AD8348ARU-REEL7?
The noise figure is 10.75 dB at maximum gain, from a 200 Ω source, with FIF = 380 MHz.
- What is the gain control voltage range of the AD8348ARU-REEL7?
The gain control voltage range is from 0.2 V to 1.2 V.
- What are the typical applications of the AD8348ARU-REEL7?
The AD8348ARU-REEL7 is typically used in communications receivers, baseband signal processing, direct conversion receivers, and wireless infrastructure and mobile devices.
- What is the maximum junction temperature of the AD8348ARU-REEL7?
The maximum junction temperature is 150°C.
- What is the power-up time for the final baseband amplifiers of the AD8348ARU-REEL7?
The power-up time for the final baseband amplifiers to be within 90% of their final amplitude is 45 μs.
