Datasheet LTC1743 (Analog Devices) - 7

LTC1743
W U TYPICAL PERFOR A CE CHARACTERISTICS Averaged, 8192 Point FFT, Averaged, 8192 Point FFT, Averaged, 8192 Point FFT, Input Frequency = 51MHz, Input Frequency = 70MHz, Input Frequency = 70MHz, –20dB, 2V Range –1dB, 2V Range –6dB, 2V Range
0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 –90 –90 –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 0 5 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 1743 G19 1743 G20 1743 G21
Averaged, 8192 Point FFT, Input Frequency = 70MHz, SNR vs Sample Rate, –20dB, 2V Range Grounded Input Histogram Input Frequncy = 5MHz, –1dB
0 50000 73 –10 72 3.2V RANGE –20 40000 71 –30 70 2V RANGE –40 –50 30000 69 –60 68 COUNT –70 20000 SNR (dBFS) 67 AMPLITUDE (dBFS) –80 66 –90 10000 65 –100 –110 64 –120 0 63 0 5 10 15 20 25 2040 2041 2042 2043 2044 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) CODE SAMPLE RATE (Msps) 1743 G22 1743 G23 1743 G24
SFDR vs Sample Rate, SNR vs Input Frequency and SNR vs Input Frequency and Input Frequency = 5MHz, –1dB Amplitude, 3.2V Range Amplitude, 2V Range
100 75 75 95 –1dBFS 2V RANGE –1dBFS 90 70 70 85 –6dBFS 3.2V RANGE –6dBFS 80 65 65 75 SFDR (dBc) 70 SNR (dBc) 60 SNR (dBc) 60 65 60 55 55 –20dBFS 55 –20dBFS 50 50 50 0 20 40 60 80 100 1 10 1 10 100 100 SAMPLE RATE (Msps) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 1743 G27 1743 G25 1743 G26 1743f 7