LT5516EUF#PBF

LT5516 is a 800MHz to 1.5GHz direct conversion quadrature demodulator optimized for high linearity receiver applications. It is suitable for communications receivers where an RF or IF signal is directly converted into I and Q baseband signals with bandwidth upto 260MHz. It incorporates balanced I and Q mixers, LO buffer amplifiers and a precision, high frequency quadrature generator. In an RF receiver, the high linearity of the device provides excellent spur-free dynamic range, even with fixed gain front end amplification. This direct conversion receiver can eliminate the need for intermediate frequency (IF) signal processing, as well as the corresponding requirements for image filtering and IF filtering. Channel filtering can be performed directly at the outputs of the I and Q channels. It is widely used in applications such as cellular/PCS/UMTS infrastructure, high linearity direct conversion I/Q receiver, high linearity I/Q demodulator etc.

• Input 3rd order intercept is 21.5dBm typical at (R1 = 3.3 ohm, PLO = -5dBm, TA = 25°C)
• Input 2nd order intercept is 52dB typical at (R1 = 3.3 ohm, PLO = -5dBm, TA = 25°C)
• Noise figure is 12.8dB typical at (R1 = 3.3 ohm, PLO = -5dBm, TA = 25°C)
• Conversion gain is 4.3dB typical at (TA = 25°C, VCC = 5V)
• I/Q gain mismatch is 0.2dB typical at (TA = 25°C, VCC = 5V)
• Shutdown mode
• Output impedance is 120 ohm typical at (TA = 25°C, VCC = 5V)
• Baseband bandwidth is 260MHz typical at (TA = 25°C, VCC = 5V)
• Operating temperature range from -40°C to 85°C
• Package style is 16-lead plastic QFN

Uwagi

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