AD7760
0
–25
–50
–75
–100
–125
–150
–175
–200
0
250
500
750
1000
1250
FREQUENCY (kHz)
Figure 17. Normal Mode FFT, 1 MHz, −6 dB Input Tone, 8× Decimation
0
TONE A: 999.75kHz
–25 TONE B: 1.00025MHz
–50
–75
–100
–125
–150
–175
–200
0
250
500
750
1000
1250
FREQUENCY (kHz)
Figure 18. Normal Mode IMD, 1 MHz Center Frequency, 8× Decimation
0
–25
–50
–75
–100
–125
–150
–175
–200
0
250
500
750
1000
1250
FREQUENCY (kHz)
Figure 20. Low Power FFT, 1 MHz, −6 dB Input Tone, 8× Decimation
0
TONE A: 999.75kHz
–25 TONE B: 1.00025MHz
–50
–75
–100
–125
–150
–175
–200
0
250
500
750
1000
1250
FREQUENCY (kHz)
Figure 21. Low Power IMD, 1 MHz Center Frequency, 8× Decimation
0
TONE A: 999.75kHz
–20 TONE B: 1.00025MHz
SECOND-ORDER IMD: –105.6dB
–40
–60
–80
–100
–120
–140
–160
0
2000
4000
6000
8000
10000
FREQUENCY (kHz)
Figure 19. Normal Mode IMD, 1 MHz Center Frequency, 8× Decimation
0
TONE A: 999.75kHz
–20 TONE B: 1.00025MHz
SECOND-ORDER IMD: –115.7dB
–40
–60
–80
–100
–120
–140
–160
0
2000
4000
6000
8000
10000
FREQUENCY (kHz)
Figure 22. Low Power IMD, 1 MHz Center Frequency, 8× Decimation
Rev. A | Page 14 of 36