MCP3565R datasheet(18/108 Pages) MICROCHIP

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MCP3565R

DS20006401C-page 18



2020-2021 Microchip Technology Inc.

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 2-31:

SNR vs. Temperature,

Internal VREF.

FIGURE 2-32:

THD vs. Temperature,

Internal VREF.

FIGURE 2-33:

SFDR vs. Temperature,

Internal VREF.

FIGURE 2-34:

Dynamic Performance vs.

Input Signal Amplitude.

FIGURE 2-35:

SINAD vs. AMCLK

(BOOST = 0.5x).

FIGURE 2-36:

SINAD vs. AMCLK

(BOOST = 0.66x).

100

120

-50

-25

255075

100

125

Temperature (°C)

GAIN = 0.33

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

GAIN = 16

-120

-100

-80

-60

-40

-20

-50

-25

100

125

Temperature (°C)

GAIN = 0.33

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

GAIN = 16

100

120

140

-50

-25

255075

100

125

Temperature (°C)

GAIN = 0.33

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

GAIN = 16

100

120

140

-8

-6

-4

-2

Analog Input Signal Amplitude (dBFS)

SINAD (dB)

SNR (dB)

-THD (dBc)

SFDR (dBc)

REF = 2.7V

DD = 3.3V

100

105

110

AMCLK Frequency (MHz)

GAIN = 0.33

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

GAIN = 16

BOOST = 0.5x

100

105

110

AMCLK Frequency (MHz)

GAIN = 0.33

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

GAIN=16

BOOST = 0.66x

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