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Wireless CPU

Q24 Series

Interfaces

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WM_PGM_Q24NG_PTS_001-005

November 20, 2007

.11

s. This

3 Analog to Digital Converter (ADC)

Equivalent circuit

An Analog to Digital Converter is provided by the Wireless CPU

Q24 Serie

converter is a10-bit resolution, ranging from 0.9 to 2.775 V.

Note:

• The Q24NG ADC accuracy cannot be guaranteed for an ADC input level less

than 0.9 V or greater than 2.775 V.

is guaranteed to +/- 10 mV for Q24NG input level

temperature.

• Q24NG ADC accuracy

between 0.9 V and 2.775 V at ambient temperature, and is guaranteed to +/-

20 mV for Q24NG input level between 0.9 V and 2.775 V at extre

Pin description

Signal Pin number I/O I/O type Description

AUXV0 /D converter 33 I Analog A

Electrical characteristics

Parameter Min Max Unit

Resolution Bits 10

Hardware sampling rate Ksps/s 17

Input signa 0.9 .775 V l range 2

ADC reference 0.75 % accuracy 2

Integral accuracy +/- 1 LSB

Differential accuracy +/- 1 LSB

Input impedance ( R ) 10

MΩ

Input impedance ( C ) 100 nF

AUXV0

Q24 Series

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 84 85

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