MCP3565R datasheet(13/108 Pages) MICROCHIP

13 / 108 page

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2020-2021 Microchip Technology Inc.

DS20006401C-page 13

MCP3565R

2.0

TYPICAL PERFORMANCE CURVES

Note:

Unless otherwise indicated, AVDD = 3.3V; DVDD = 3.3V; TA = +25°C; MCLK = 4.9152 MHz;

VIN = -0.5 dBFS at 50 Hz; VREF = AVDD; ADC_MODE = 11. All other registers are set to the default value.

Histogram ticks are centered at their bin center.

FIGURE 2-1:

FFT Output Spectrum,

fin = 50 Hz (External VREF).

FIGURE 2-2:

FFT Output Spectrum,

fin = 1 kHz (External VREF).

FIGURE 2-3:

FFT Output Spectrum,

fin = 50 Hz (Internal VREF).

FIGURE 2-4:

FFT Output Spectrum,

fin = 1 kHz (Internal VREF).

FIGURE 2-5:

Output Noise Histogram

(External VREF).

FIGURE 2-6:

Output Noise Histogram

(Internal VREF).

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) therefore outside the warranted range.

-180

-160

-140

-120

-100

-80

-60

-40

-20

500

1000

1500

2000

2500

Frequency (Hz)

IN = -0.5 dBFS at 50 Hz

FFT 16384 samples

-180

-160

-140

-120

-100

-80

-60

-40

-20

500

1000

1500

2000

2500

Frequency (Hz)

IN = -0.5 dBFS at 1 kHz

FFT 16384 samples

-180

-160

-140

-120

-100

-80

-60

-40

-20

500

1000

1500

2000

2500

Frequency (Hz)

IN = -0.5 dBFS @ 50Hz

FFT 16384 samples

-180

-160

-140

-120

-100

-80

-60

-40

-20

500

1000

1500

2000

2500

Frequency (Hz)

IN = -0.5 dBFS @ 1kHz

FFT 16384 samples

1000

2000

3000

4000

5000

6000

ADC Output Code (LSB)

IN = 0V

Noise = 8.9 V

RMS

CONV_MODE[1:0] = 11

64000 Samples

Bin Size = 4 LSB

500

1000

1500

2000

2500

3000

3500

4000

ADC Output Code (LSB)

IN = 0V

Noise = 9.4 V

RMS

64000 samples

Bin size = 4 LSB

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