DataSheet8.cn


PDF ( 数据手册 , 数据表 ) IQS525

零件编号 IQS525
描述 Capacitive Controller Platform
制造商 Azoteq
LOGO Azoteq LOGO 


1 Page

No Preview Available !

IQS525 数据手册, 描述, 功能
ProxSense®
IQS550/572/525/512 Capacitive Controller Platform
IQS5xx-A000 Trackpad/Touchscreen Controller
Multiple Channel Projected Capacitive Controller, with Proximity, Touch and Snap
The IQS5xx-A000 is a projected capacitive touch and proximity trackpad/touchscreen
controller implementation on the IQS550, IQS572, IQS525 and IQS512 platforms. The
IQS5xx-A000 features best in class sensitivity, signal-to-noise ratio and automatic tuning
of electrodes. Low power proximity detection allows extreme low power operation.
Main Features
Proximity, touch and snap* on each channel
Multi-touch and multi-hover support
3584 x 2304 resolution (IQS550)
I2CTM communications interface
ATI: automatic tuning for optimum sensitivity
Supply Voltage 1.65V to 3.6V
Proximity low power operation (<10uA)
Event mode and streaming modes
Dedicated proximity channel for long range proximity sensing
Internal voltage regulator and reference capacitor
On-chip noise detection and suppression
Maximum channels
Minimum report rate
(with dual touch / max channels active)
Resolution
(for shown Tx Rx configurations)
IQS550
150
100Hz
3584 x 2304
(15 x 10)
IQS572
72
170Hz
2048 x 1792
(9 x 8)
IQS525
25
220Hz
1280 x 768
(6 x 4)
IQS512
12
400Hz
768 x 512
(4 x 3)
Applications
Compact Capacitive Keyboards
Remote Control Trackpads
Appliances
Navigation devices
Kiosks and POS terminals
E-readers
Consumer electronics
Available options
TA QFN(7x7)-48 QFN(4x4)-28 QFN(4x4)-28
-40°C to 85°C
IQS550
IQS572
IQS525
*patents pending
TSSOP-20
IQS512
Copyright © Azoteq (Pty) Ltd
All Rights Reserved.
IQS5xx-A000 Trackpad Datasheet
Revision 1.11
Page 1 of 79
April 2015







IQS525 pdf, 数据表
IQ Switch®
ProxSense® Series
Table 2.1 QFN48 Pin-out
Pin Name
Description
1 Tx14 Transmitter electrode
2
PGM
Programming Pin
3
POUT
Global Prox Output
4 TOUT Global Touch Output
5 SDA
I2C Data
6 SCL
I2C Clock
7 VDDHI Supply Voltage
8
VSS
Ground Reference
9
VREG
Internal Regulator
Voltage
10
NRST
Reset (active LOW)
11 RDY
I2C RDY
12 RFIN RF antenna input
13
Rx0A
Receiver electrode
14
Rx0B
Default ProxMode
electrode
Pin Name
Description
25
Rx6A
Receiver electrode
26 Rx6B
Note1
27
Rx7A
Receiver electrode
28 Rx7B
Note1
29
Rx8A
Receiver electrode
30 Rx8B
Note1
31
Rx9A
Receiver electrode
32 Rx9B
Note1
33 Tx0 Transmitter electrode
34 Tx1 Transmitter electrode
35 Tx2 Transmitter electrode
36 Tx3 Transmitter electrode
37 VSSIO I/O Ground Reference
38 VDDIO I/O Supply Voltage
39 Tx4 Transmitter electrode
40 Tx5 Transmitter electrode
15
Rx1A
Receiver electrode
16 Rx1B
Note1
41 Tx6 Transmitter electrode
42 Tx7 Transmitter electrode
17
Rx2A
Receiver electrode
18 Rx2B
Note1
43 Tx8 Transmitter electrode
44 Tx9 Transmitter electrode
19
Rx3A
Receiver electrode
20 Rx3B
Note1
45 Tx10 Transmitter electrode
46 Tx11 Transmitter electrode
21
Rx4A
Receiver electrode
47 Tx12 Transmitter electrode
22 Rx4B
Note1
48 Tx13 Transmitter electrode
23
Rx5A
Receiver electrode
Note1: Any of these can be configured through I2C as the
ProxSense® electrode.
24 Rx5B
Note1
Copyright © Azoteq (Pty) Ltd
All Rights Reserved.
IQS5xx-A000 Trackpad Datasheet
Revision 1.11
Page 8 of 79
April 2015







IQS525 equivalent, schematic
IQ Switch®
ProxSense® Series
This gives a good proximity sensor in the mode is enabled, it will switch to Normal Mode
trackpad area. Adding a ground track charging which occurs at full-speed (no low-
between this Rx and the trackpad channels power). If no activity occurs for ModeTime,
also improves the proximity sensing.
then the system will revert to ProxMode
3.4 Automatic Mode Switching
charging. Here it will continue at full-speed for
a further ModeTime, and after this, low-power
With this enabled, automatic interaction and charging will take place on the ProxMode
switching between Normal- and ProxMode channel.
charging is achieved. For the automatic mode
(and also low-power charging) a selectable
ModeTime is used.
This gives the lowest power consumption,
combined with a possibility of good range
proximity (sensor and system dependent)
After being correctly configured, the system which helps with the wake-up response time
will operate in ProxMode, until a proximity of the system.
event is sensed on the ProxMode channel. At
this point the system will switch to Normal
3.5.2
Low-Power in Normal Mode
Mode charging, ready to sense user If automatic mode is NOT selected, the
interaction with the trackpad channels.
system will work as follows in Normal Mode
The system will revert back to ProxMode
charging if no prox, touch or snap condition is
(possibly the hardware
ProxMode electrode):
does
not
allow
for
a
found on the Normal Mode channels for a After ModeTime of no prox, touch or snap, the
period of ModeTime.
system will stay in Normal Mode, but all
When in ProxMode, a Normal Mode
conversion will automatically take place
roughly every 4s, but no communication for
this cycle will be presented. This cycle is
simply to keep the Long-Term Average values
of the Normal Mode channels up to date.
channels will with a low-power duty cycle. If
an event is sensed on a Normal Mode
channel, full-speed charging will commence
immediately to provide fast response. This
will not provide the same low power
consumption as found in ProxMode, since
more channels are usually processed in
3.5 Low Power Charging
Normal Mode, thus increasing the
consumption (longer/more processing means
By enabling low-power, the device will add a higher ratio of high current operation time
sleep between conversions. If no prox, touch versus sleep time).
or snap is sensed for ModeTime, then the
system will go into the low duty-cycle charging 3.5.3 Low-Power in ProxMode
mode. As soon as a channel output is If automatic mode is NOT selected, and the
sensed, the system will resume full-speed system is in ProxMode charging:
charging. Introducing this low-power duty
cycle into the system naturally decreases total
power consumption of the device, dependant
on the selected LPTime.
After a period of ModeTime of no PROX on
the ProxMode sensor, the ProxMode channel
will charge in the low-power mode. If a PROX
is sensed on this channel, it will stay in
3.5.1 Low-Power with Automatic Mode ProxMode, and will charge at full-speed.
Switching
3.6 Data Report Rate
If it is possible to have a ProxMode sensor,
the best is to use the system in automatic The report rate of the device depends on the
mode switching, combined with low-power charge transfer frequency, number of enabled
charging. This will give by far the lowest channels, and the count value of the channels.
power consumption, and works as follows:
The length of communications initiated by the
The system charges
PROX event occurs,
in ProxMode until a
and since automatic
master device will also affect the report rate.
There is a maximum rate governed by the
Copyright © Azoteq (Pty) Ltd
All Rights Reserved.
IQS5xx-A000 Trackpad Datasheet
Revision 1.11
Page 16 of 79
April 2015










页数 30 页
下载[ IQS525.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
IQS525Capacitive Controller PlatformAzoteq
Azoteq

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap