IQS550EV03 S Azoteq, IQS550EV03 S Datasheet - Page 25

• Manufacturer Part Number: IQS550EV03 S
• Description: Touch Sensor Development Tools Trackpad Demo for IQS550
• Manufacturer: Azoteq

Specifications of IQS550EV03 S

• Tool Is For Evaluation Of: IQS550
• Interface Type: I2C, SPI
• Operating Voltage: 1.65 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C

5.6.12 ATI Settings (0x12)
To configure the ATI parameters relating to
the XY trackpad channels, and a second set
for non-trackpad channels,
command can be used. Here the ATI Target
can be set (which is then used together with
Copyright © Azoteq (Pty) Ltd
All Rights Reserved.
Byte
1
2
3
4
5
6
7
8
9
Snap Threshold – High
Snap Threshold – Low
TouchThresholdShift2
TouchThresholdMult2
TouchThresholdShift
TouchThresholdMult
PM ProxThreshold
ProxThreshold2
ProxThreshold
Data
Byte
Byte
Table 5.9
this address-
Thresholds applied
Thresholds applied
TrackpadRx block)
ProxMode channel
within the selected
TrackpadRx block
ProxSense
All channels (not
channels (falling
TrackpadTx and
channels (falling
TrackpadTx and
to non-trackpad
TotalTx block)
and within the
TotalRx and
Applicable
to trackpad
outside the
ProxMode)
channels
including
selected
IQ Switch
IQS550 Trackpad Datasheet
Threshold Settings Bytes
®
the Auto-ATI routine) to configure the ATI
Compensation on each channel.
value can also be configured here for the
entire touch panel. The bytes to be written are
shown below.
Revision 1.04
Series
®
Delta value BELOW LTA
Touch Threshold Shifter
Touch Threshold Shifter
proximity threshold of
Delta value used for
Delta value used for
Delta value used for
ProxMode channels
proximity threshold
proximity threshold
where a SNAP is
Touch Threshold
Touch Threshold
Description
Multiplier
Multiplier
decided
November 2012
Default
An ATI C
Page 25 of 50
Value
100
10
10
10
5
7
5
7