ADS58C48IPFPR datasheet(34/70 Pages) TI

34 / 70 page

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

Frequency (MHz)

Ain =−36dBFS,Fin = 140MHz,

Fs = 185 MSPS

Over 20MHz BW,37M to 57M

SNR = 80.5 dBFS

SINAD = 80.4 dBFS

SFDR = 70 dBc

SNR BOOST Filter # 14

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

Frequency (MHz)

Ain = −2dBFS,Fin = 140MHz,

Fs = 185 MSPS

Over 20MHz BW,37M to 57M

SNR = 76.9 dBFS

SINAD = 76.7 dBFS

SFDR = 90 dBc

SNR BOOST Filter # 14

512

1024

1536

2048

2560

3072

3584

4096

4000

8000 12000 16000 20000 24000 28000 32000

Sample Number

FS = 200MHz

Fin = 150MHz

512

1024

1536

2048

2560

3072

3584

4096

4000

8000 12000 16000 20000 24000 28000 32000

Sample Number

FS = 200MHz

Fin = 150MHz

ADS58C48

SLAS689 – MAY 2010

www.ti.com

TYPICAL CHARACTERISTICS (continued)

All plots are at 25°C, AVDD = 1.8 V, DRVDD = 1.8 V, maximum rated sampling frequency, sine wave input clock. 1.5 VPP

differential clock amplitude, 50% clock duty cycle, –1 dBFS differential analog input, High Perf Mode disabled, 0 dB gain,

DDR LVDS output interface, 32k point FFT (unless otherwise noted)

FFT WITH SNRBoost 3G ENABLED, 20-MHz BANDWIDTH

Figure 20.

Figure 21.

TIME DOMAIN WAVEFORM OF UNWRAP SIGNAL,

SNRBoost 3G DISABLED

SNRBoost 3G ENABLED

Figure 22.

Figure 23.

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