MAX11041 Datasheet, PDF (2/19 Pages) Maxim Integrated Products – Wired Remote Controllers

Wired Remote Controllers
ABSOLUTE MAXIMUM RATINGS
V_DD to GND ...........................................................-0.3V to +4.0V
INT to GND .................................................-0.3V to (V_DD + 0.3V)
SCL, SDA, A1, A0, SHDN to GND.........................-0.3V to +4.0V
FORCE, SENSE Short to GND....................................Continuous
Junction Temperature ......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
FORCE, SENSE to GND.........................................................±6V
Current into Any Pin..........................................................±50mA
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Maximum ESD per IEC 61000-4-2
Human Body Model, FORCE, SENSE............................±15kV
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_DD = +1.6V to 3.6V, C_SENSE = 10nF, R_SENSE = 10kΩ, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
KEY DETECTION CHARACTERISTICS
Detectable Keys
Maximum Switch Resistance
Maximum Switch Bounce Time
External Resistor Tolerance
SWITCH DEBOUNCE
Debounce Analog Time Constant
Chatter Rejection
CONDITIONS
Provided the keys meet
the next three
specifications; R_JACK
connected; use
recommended circuit
(Note 1)
(Note 1)
(Note 1)
MAX11041
MAX11042
C_SENSE = 10nF, external resistor from
FORCE to SENSE is 10kΩ (R_SENSE)
Pulses shorter than this are ignored
MIN TYP MAX UNITS
30
6
100
13
±1
Keys
Ω
ms
%
0.4
ms
18
ms
Rising Voltage Debounce Time
t_CPW
Time required for a new voltage (due to
keypress) to be detected and stored in
FIFO
18
ms
Falling Voltage Debounce Time
t_LPWS
Time required for detection of key release
and final time duration to be stored in FIFO
18
ms
Jack Insertion Debounce Time
(Note 2)
18
ms
Jack Removal Debounce Time
(Note 2)
18
ms
DURATION COUNTER
Duration-Counter Resolution
One tick
32
ms
Duration-Counter Range
MSB is overflow bit
0
127 Counts
Duration-Counter Accuracy
DIGITAL INPUTS (SDA, SCL, SHDN, A0, A1)
±20
%
Input High Voltage
V_IH
0.7 x
V
V_DD
Input Low Voltage
V_IL
0.3 x
V
V_DD
Input Leakage Current
Input Hysteresis
Input Capacitance
I_IH, I_IL
-10
+10
µA
9
%V_DD
10
pF
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