Datasheet Linear Technology LTC5584 — Datenblatt

LTC5584
30MHz to 1.4GHz IQ
Demodulator with IIP2 and
DC Offset Control
Description Features I/Q Bandwidth of 530MHz or Higher
n High IIP3: 31dBm at 450MHz, 28dBm at 900MHz
n High IIP2: 70dBm at 450MHz, 65dBm at 900MHz
n User Adjustable IIP2 to >80dBm
n User Adjustable DC Offset Null
n High Input P1dB: 13.1dBm at 900MHz
n Image Rejection: 45dB at 900MHz
n Noise Figure: 9.9dB at 450MHz 10dB at 900MHz
n Conversion Gain: 5.4dB at 450MHz 5.7dB at 900MHz
n Shutdown Mode
n Operating Temperature Range (T ): –40°C to 105°C
C
n 24-Lead 4mm Г— 4mm QFN Package The LTCВ®5584 is a direct conversion quadrature demodulator optimized for high linearity receiver applications in
the 30MHz to 1.4GHz frequency range. It is also usable
in the 10MHz to 30MHz and 1.4GHz to 2GHz ranges with
reduced performance. It is suitable for communications
receivers where an RF signal is directly converted into I
and Q baseband signals with bandwidth of 530MHz or
higher. The LTC5584 incorporates balanced I and Q mixers, LO buffer amplifiers and a precision, high frequency …