Datasheet

ADS1299

www.ti.com

SBAS499A –JULY 2012–REVISED AUGUST 2012

CONFIG2: Configuration Register 2

Address = 02h

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

1 1 0 INT_CAL 0 CAL_AMP0 CAL_FREQ1 CAL_FREQ0

This register configures the test signal generation. See the Input Multiplexer section for more details.

Bits[7:5] Must always be set to '110'

Bit 4 INT_CAL: TEST source

This bit determines the source for the Test signal.

0 = Test signals are driven externally (default)

1 = Test signals are generated internally

Bit 3 Must always be set to '0'

Bit 2 CAL_AMP0: Test signal amplitude

This bit determines the calibration signal amplitude.

0 = 1 × (VREFP – VREFN) / 2.4 mV (default)

1 = 2 × (VREFP – VREFN) / 2.4 mV

Bits[1:0] CAL_FREQ[1:0]: Test signal frequency

These bits determine the calibration signal frequency.

00 = Pulsed at f

CLK

/ 2

(default)

01 = Pulsed at f

CLK

/ 2

10 = Not used

11 = At dc

Product Folder Link(s): ADS1299