|
|
PDF CAP1206 Data sheet ( Hoja de datos )
| Número de pieza | CAP1206 | |
| Descripción | 6-Channel Capacitive Touch Sensor | |
| Fabricantes | Microchip | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de CAP1206 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
CAP1206
6-Channel Capacitive Touch Sensor
General Description
The CAP1206 is a multiple channel capacitive touch
sensor controller. It contains six (6) individual capaci-
tive touch sensor inputs with programmable sensitivity
for use in touch sensor applications. Each sensor input
is calibrated to compensate for system parasitic capac-
itance and automatically recalibrated to compensate
for gradual environmental changes.
The CAP1206 includes Multiple Pattern Touch recogni-
tion that allows the user to select a specific set of but-
tons to be touched simultaneously. If this pattern is
detected, a status bit is set and an interrupt is gener-
ated.
The CAP1206 has Active and Standby states, each
with its own sensor input configuration controls. Power
consumption in the Standby state is dependent on the
number of sensor inputs enabled as well as averaging,
sampling time, and cycle time. Deep Sleep is the low-
est power state available, drawing 5µA (typical) of cur-
rent. In this state, no sensor inputs are active, and
communications will wake the device.
Applications
• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances
Features
• Six (6) Capacitive Touch Sensor Inputs
- Programmable sensitivity
- Automatic recalibration
- Calibrates for parasitic capacitance
- Individual thresholds for each button
• Multiple Button Pattern Detection
• Power Button Support
• Press and Hold Feature for Volume-like Applica-
tions
• 3.3V or 5V Supply
• Analog Filtering for System Noise Sources
• RF Detection and Avoidance Filters
• Digital EMI Blocker
• 8kV ESD Rating on All Pins (HBM)
• Low Power Operation
- 5µA quiescent current in Deep Sleep
- 50µA quiescent current in Standby (1 sensor
input monitored)
- Samples one or more channels in Standby
• SMBus / I2C Compliant Communication Interface
• Available in a 10-pin 3mm x 3mm DFN RoHS
compliant package
2013-2015 Microchip Technology Inc.
DS00001567B-page 1
1 page  
CAP1206
FIGURE 1-3:
CAP1206 PIN DIAGRAM (10-PIN 3 X 3 MM DFN)
CS1 1
ALERT# 2
SMDATA 3
SMCLK 4
VDD 5
GND
10 CS2
9 CS3
8 CS4
7 CS5
6 CS6
TABLE 1-1: PIN DESCRIPTION FOR CAP1206
QFN Pin # SOIC Pin # Pin Name
Pin Function
1
2
3
4
5
6
7
8
9
10
Bottom
Pad
2 CS1 Capacitive Touch Sensor Input 1
ALERT# - Active low alert / interrupt out-
3 ALERT# put for SMBus alert - requires pull-up
resistor (default)
SMDATA - Bi-directional, open-drain
4 SMDATA SMBus or I2C data - requires pull-up
resistor
5
SMCLK
SMCLK - SMBus or I2C clock input -
requires pull-up resistor
7
VDD
Positive Power supply
9 CS6 Capacitive Touch Sensor Input 6
10 CS5 Capacitive Touch Sensor Input 5
11 CS4 Capacitive Touch Sensor Input 4
12 CS3 Capacitive Touch Sensor Input 3
13 CS2 Capacitive Touch Sensor Input 2
8
GND
Ground
Pin Type
Unused
Connection
AIO
Connect to
Ground
OD
Connect to
Ground
DIOD
n/a
DI
Power
AIO
AIO
AIO
AIO
AIO
Power
n/a
n/a
Connect to
Ground
Connect to
Ground
Connect to
Ground
Connect to
Ground
Connect to
Ground
n/a
DS00001567B-page 5
2013-2015 Microchip Technology Inc.
5 Page 
CAP1206
3.2.6 SMBUS TIMEOUT
The CAP1206 includes an SMBus timeout feature. Following a 30ms period of inactivity on the SMBus where the
SMCLK pin is held low, the device will timeout and reset the SMBus interface.
The timeout function defaults to disabled. It can be enabled by setting the TIMEOUT bit in the Configuration register
(see Section 5.6, "Configuration Registers").
3.2.7
SMBUS AND I2C COMPATIBILITY
The major differences between SMBus and I2C devices are highlighted here. For more information, refer to the SMBus
2.0 specification.
1. CAP1206supports I2C fast mode at 400kHz. This covers the SMBus max time of 100kHz.
2. Minimum frequency for SMBus communications is 10kHz.
3. The SMBus client protocol will reset if the clock is held low longer than 30ms (timeout condition). This can be
enabled in the CAP1206 by setting the TIMEOUT bit in the Configuration register. I2C does not have a timeout.
4. The SMBus client protocol will reset if both the clock and the data line are high for longer than 200us (idle con-
dition). This can be enabled in the CAP1206by setting the TIMEOUT bit in the Configuration register. I2C does
not have an idle condition.
5. I2C devices do not support the Alert Response Address functionality (which is optional for SMBus).
6. I2C devices support block read and write differently. I2C protocol allows for unlimited number of bytes to be sent
in either direction. The SMBus protocol requires that an additional data byte indicating number of bytes to read /
write is transmitted. The CAP1206 supports I2C formatting only.
3.3 SMBus Protocols
The CAP1206 is SMBus 2.0 compatible and supports Write Byte, Read Byte, Send Byte, and Receive Byte as valid
protocols as shown below.
All of the below protocols use the convention in Table 3-1.
TABLE 3-1: PROTOCOL FORMAT
Data Sent to
Device
Data sent
Data Sent to the
HOst
Data sent
3.3.1 SMBUS WRITE BYTE
The Write Byte is used to write one byte of data to a specific register as shown in Table 3-2.
TABLE 3-2: WRITE BYTE PROTOCOL
Start
Slave
Address
WR ACK
1 ->0
0101_000
0
0
Register
Address
XXh
ACK
0
Register
Data
XXh
ACK
0
Stop
0 -> 1
3.3.2 SMBUS READ BYTE
The Read Byte protocol is used to read one byte of data from the registers as shown in Table 3-3.
DS00001567B-page 11
2013-2015 Microchip Technology Inc.
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CAP1206.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CAP1203 | 3-Channel Capacitive Touch Sensor | Microchip |
| CAP1206 | 6-Channel Capacitive Touch Sensor | Microchip |
| CAP1208 | 8-Channel Capacitive Touch Sensor | Microchip |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |