AFE8220TPZPQ1 datasheet(7/49 Pages) TI1

7 / 49 page

AFE8220-Q1

www.ti.com....................................................................................................................................................... SBAS455A – JANUARY 2009 – REVISED JULY 2009

TERMINAL FUNCTIONS

TERMINAL

FUNCTION

DESCRIPTION

NAME

NO.

AVDD1

Supply

3.3-V analog supply (internally switched)

CDAC0

Output

Control DAC 0 output

AVSS

Ground

Analog ground

CDAC1

Output

Control DAC 1 output

AVDD1

Supply

3.3-V analog supply (internally switched)

AVDD1

Supply

3.3-V analog supply (internally switched)

AVSS

Ground

Analog ground

AVSS

Ground

Analog ground

IF_INP0

Input

IF ADC channel 0 positive input

IF_INM0

Input

IF ADC channel 0 negative input

IF_VCM

Output

IF ADC common-mode voltage

IF_REFP

Output

IF ADC positive reference

IF_REFM

Output

IF ADC negative reference

AVSS

Ground

Analog ground

AVDD1

Supply

3.3-V analog supply (internally switched)

AVDD1

Supply

3.3-V analog supply (internally switched)

AVSS

Ground

Analog ground

AVSS

Ground

Analog ground

IF_BIAS

Input

IF ADC bias input

AVSS

Ground

Analog ground

IF_INM1

Input

IF ADC channel 1 negative input

IF_INP1

Input

IF ADC channel 1 positive input

AVSS

Ground

Analog ground

AVSS

Ground

Analog ground

AVDD1

Supply

3.3-V analog supply (internally switched)

AVDD

Supply

3.3-V analog supply

AVDD

Supply

3.3-V analog supply

AVSS

Ground

Analog ground

AVDD

Supply

3.3-V analog supply

REFCLK

Output

Inverted reference clock output

REFCLK

Output

Reference clock output

AVSS

Ground

Analog ground

DVSS

Ground

Digital ground (for MCLK oscillator)

MCLKI

Input

MCLK oscillator input

MCLKO

Output

MCLK oscillator output

DVDD2

Supply

1.8-V digital supply (for MCLK oscillator)

AVSS

Ground

Analog ground

AVDD

Supply

3.3-V analog supply

AVSS

Ground

Analog ground

DVDD

Supply

1.8-V digital supply

IOVDD

Supply

3.3-V digital I/O supply

DVSS

Ground

Digital ground

IOVSS

Ground

Digital I/O ground

GRST

Input

Global reset (active low)

WAKEUP

Output

WAKEUP interrupt output

IRQ0

Output

Interrupt output 0

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