DSP101, 102

6

SBAS003A

DSP102 CHANNEL SEPARATION ON CHANNEL B WITH

±2.75V, 1kHz INPUT ON CHANNEL A

Frequency (kHz)

0

0

–20

–40

–60

–80

–100

–120

25

50

75

100

FREQUENCY SPECTRUM of ±2.75V, 451kHz INPUT

(Using Four-Term Blackman-Harris Window)

Frequency (kHz)

0

0

–20

–40

–60

–80

–100

–120

25

50

75

100

Undersampling

SINAD means Signal-to-(Noise + Distortion) Ratio.

THD means Total Harmonic Distortion thru 8th harmonic.

SNR means Signal-to-Noise Ratio excluding harmonics

SFDR means Spurious Free Dynamic Range, including

thru the 8th.

harmonics.

TYPICAL PERFORMANCE CURVES

2048 Point FFT; Data analysis limited to 0 to 20kHz band; Unless otherwise specified.

–55 –40 –25

0

25

70

85

125

Ambient Temperature (°C)

DYNAMIC PERFORMANCE vs TEMPERATURE

80

85

90

95

–80

–85

–90

–95

–100

100

f

SINAD

THD

SNR

SFDR

FREQUENCY SPECTRUM of ±2.75V, 1kHz INPUT

(Average of 12 FFTs, No Window Used)

Frequency (kHz)

0

0

25

50

75

100

–30

–60

–90

–120

FREQUENCY SPECTRUM of ±2.75V, 20kHz INPUT

(Using Four-Term Blackman-Harris Window)

Frequency (kHz)

0

0

–20

–40

–60

–80

–100

–120

25

50

75

100

INTERMODULATION DISTORTION WITH 1kHz AND 3kHz INPUTS

(Using Four-Term Blackman-Harris Window)

Frequency (kHz)

0

0

–20

–40

–60

–80

–100

–120

25

50

75

100