PDF《LTC5587 6 GHz RMS Power Detector》

10 to

6000 MHz Input Impedance 205||1.6 Ω||pF fRF = 450MHz RF Input Power Range Externally Matched to 50Ω Source C34 to

6 dBm Linear Dynamic Range, CW (Note 3) ±1dB Linearity Error

40 dB Linear Dynamic Range, CDMA (Note 3) ±1dB Linearity Error;

CDMA 4-Carrier

40 dB Output Slope

73 LSB/dB Logarithmic Intercept (Note 5) C42 dBm Output Variation vs Temperature Normalized to Output at 25°C;

PIN = C34dBm to 6dBm ±1 dB ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2). VCC = VDD = OVDD = 3.3V, VREF = 1.8V, EN = 3.3V, fSMPL = fSMPL(MAX) and fSCK = fSCK(MAX) unless otherwise noted. Test circuit is shown in Figure 1. LTC5587

3 5587f PARAMETER CONDITIONS MIN TYP MAX UNITS Output Variation vs Temperature Normalized to Output at 25°C;

PIN = C27dBm to C10dBm ±0.5 dB Deviation from CW Response;

PIN = C34dBm to 0dBm TETRA π/4 DQPSK CDMA 4-Carrier 64-Channel Fwd 1.23Mcps ±0.1 ±0.5 dB dB 2nd Order Harmonic Distortion At RF Input;

CW Input;

PIN = 0dBm C57 dBc 3rd Order Harmonic Distortion At RF Input;

CW Input;

PIN = 0dBm C52 dBc fRF = 880MHz RF Input Power Range CW Input: Externally Matched to 50Ω Source C34 to

6 dBm Linear Dynamic Range, CW (Note 3) ±1dB Linearity Error

40 dB Linear Dynamic Range, EDGE (Note 3) ±1dB Linearity Error;

EDGE 3π/8-Shifted 8PSK

40 dB Output Slope

73 LSB/dB Logarithmic Intercept (Note 5) C42 dBm Output Variation vs Temperature Normalized to Output at 25°C;

PIN = C34dBm to 6dBm ±1 dB Output Variation vs Temperature Normalized to Output at 25°C;

PIN = C27dBm to C10dBm ±0.5 dB Deviation from CW Response;

PIN = C34dBm to 6dBm EDGE 3π/8 Shifted 8PSK ±0.1 dB fRF = 2140MHz RF Input Power Range CW Input: Externally Matched to 50Ω Source C34 to

6 dBm Linear Dynamic Range, CW (Note 3) ±1dB Linearity Error

43 dB Linear Dynamic Range, WCDMA (Note 3) ±1dB Linearity Error;

4-Carrier WCDMA

37 dB Output Slope

73 LSB/dB Logarithmic Intercept (Note 5) C42 dBm Output Variation vs Temperature ........