IQS128EV04 S Azoteq, IQS128EV04 S Datasheet - Page 24

• Manufacturer Part Number: IQS128EV04 S
• Description: Touch Sensor Development Tools Long range IQS128 proximity kit
• Manufacturer: Azoteq

Specifications of IQS128EV04 S

• Tool Is For Evaluation Of: IQS128
• Interface Type: LED
• Operating Voltage: 2.95 V to 5.5 V

t
t
F
t
t
t
t
t
t
t
t
t
t
t
T
T
T
**Minimum time calculated as causing a proximity detection on the IQS128. Prox debounce is 6 and I/O is toggled after
next charge transfer cycle, requiring 7 charge cycles for the minimum time of a decision to be made.
8
Copyright © Azoteq (Pty) Ltd 2012
All Rights Reserved
SYMBOL
HIGH
LOW
CHARGE
SAMPLE
BP
BP
LP_CHARGE
NP
LP1
LP2
START
INIT
DATA
CX
DYNACAL
EXT_HALT
PULSE
IQS128 only available in Boost Power Mode. Minimum Detection and Release times = 7 x t
Output high minimum time
Output low minimum time
Charge transfer frequency
Charge cycle duration
Refer to section 4
Sampling period in BP
Sampling period in BP
Low Power Charging time
Low Power Time between
charges for LP1.
Refer to section 4
Low Power Time between
charges for LP1.
Refer to section 4
Low Power Time between
charges for LP1.
Refer to section 4
Refer to section 0
Refer to section 0
Refer to section 0
Dynamic Calibration time
Halt Operation/Filter Halt
time
Pulse timing
Table 10.6
DESCRIPTION
Boost Power Mode
Power Mode
IQ Switch
General Timing Characteristics for 2.95V ≤ V
Table 10.7
®
ProxSense
8
Conditions
2.95 ≤ V
2.95 ≤ V
2.95 ≤ V
t
IQS128 Response Times
IQS128 & IQS128L Datasheet v2.4
CHARGE
Conditions
t
Detection
CHARGE
Release
fcx = 250kHz
CS = 1600,
®
- 2 ≤ t
Series
DDHI
DDHI
DDHI
≥ t
SAMPLE
≤ 5.5
≤ 5.5
≤ 5.5
SAMPLE
Min*
63.7
63.7
DYCAL
18.9
14.4
MIN
210
70
25
Max
9
9
-
-
DDHI
CS*(1/F
Unit
ms
ms
≤ 5.5V
t
CHARGE
TYP
250
100
300
136
136
250
6.4
CX
27
17
40
30
9
)+t
+2
CHARGE
Page 24 of 33
April 2013
CHARGE
MAX
35.1
18.8
130
390
35
UNIT
kHz
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
us
us
us