30MHz~3GHz Down-Conversion Components

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The down-converter module receives 30MHz ~ 3GHz RF signals mixed and filtered to amplify the output 720MHz/140MHz, its main function is to complete the function of the input signal to the IF signal.

No.	Parameters		Indicator Requirements
1	Input signal frequency		30MHz~3GHz
2	Noise factor		≤8dB (room temperature)
3	Tuning Resolution		≤ 1kHz
4	Maximum input power		+10dBm
5	Output Medium Frequency Characteristics	IF 1: Center frequency 720MHz	Bandwidth 1:250MHz, Ripple in BW ≤3.5dB (+25℃), rectangular coefficient (55dB:3dB) ≤2.0
			Bandwidth 2:60MHz, Ripple in BW ≤±3dB (+25℃), rectangular coefficient (55dB:3dB) ≤2.0
		IF 2:Center frequency 140MHz	Bandwidth 1:72MHz, Ripple in BW ≤2.5dB (+25℃), rectangular coefficient (60dB:3dB) ≤1.6
			Bandwidth 2:36MHz, Ripple in BW ≤2.5dB (+25℃), rectangular coefficient (60dB:3dB) ≤2.0
			Bandwidth 3:2MHz, Ripple in BW ≤2.5dB (+25℃), rectangular coefficient (45dB:3dB) ≤3.0
			Bandwidth 4:500kHz,Ripple in BW ≤ 2.5dB (+25℃), rectangular coefficient (45dB:3dB) ≤ 3.2
6	Signal Gain		50dB ±2dB(+25℃)
6	Signal attenuation		≥50dB, 1dB step(RF 30dB, IF 20dB)
8	Output signal P-1		≥+15dBm(+25℃)
9	Second order intercept point		≥ 50dBm (+25℃, Δf=2 times the maximum bandwidth, At 20dB front attenuation)
10	Input out-of-band third-order intercept point		≥ 10dBm (room temperature, Δf=2 times the maximum bandwidth)
11	Medium frequency suppression		≥90dB(typical)
12	Mirror frequency suppression		≥90dB(typical)
13	False Signals		≤ -100dBm (maximum gain folded to input)
14	Cavity isolation degree		≤ -100dBm (maximum gain folded to the input, antenna placed vertically , distance 10cm , signal source 0dBm transmit , RF port end connected load)
15	Phase noise		≤ -100dBc@10kHz(input frequency 1GHz)
16	Frequency Accuracy		≤±0.2ppm
17	Power consumption		≤ 15W

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