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参数资料
| 型号： | MAX11041ETC+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/17页 |
| 文件大小： | 0K |
| 描述： | IC REMOTE CTRLR WIRED 12-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | PDA，便携式音频/视频，智能电话 |
| 接口： | I²C |
| 电源电压： | 1.6 V ~ 3.6 V |
| 封装/外壳： | 12-WQFN 裸露焊盘 |
| 供应商设备封装： | 12-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
MAX11041
Detailed Description
The MAX11041 wired remote controller recognizes 30 dif-
ferent keypresses consisting of a resistor/switch array
over a single connector. Designed for wired remote con-
trollers on the headphone or headset cord, the
MAX11041 contains debouncing circuitry and jack inser-
tion/removal detection. During a keypress, the MAX11041
stores the key type and key duration in an 8-word FIFO
and INT (interrupt output) goes low. The results stored in
the FIFO are accessed through the I2C interface.
FORCE and SENSE
During a keypress, a unique external resistor (RSW_)
located in the remote controller connects SENSE to
ground (Figure 2). This event changes the impedance
seen by the SENSE line. The MAX11041 decodes this
resistor value to an 8-bit result (see the
Required
Resistor Set section). FORCE and SENSE are ±15kV
ESD (IEC 61000-4-2) protected.
Register Description
The MAX11041 contains one 8-bit control register, an
8-word FIFO (each word consists of an 8-bit key value
and an 8-bit duration value), and an 8-bit chip ID.
Chip ID
The chip ID identifies the features and capabilities of the
wired remote controller to the software. For the
MAX11041, the chip ID is 0x00.
Control Register
The MAX11041 contains one control register (see Table
1). Bits C7, C6, and C5 control software shutdown. Set
FORCE high-impedance and indicate if the FIFO is
empty. Write/read to the control register through the I2C-
compatible serial interface (see the
Digital Serial
Interface section).
FIFO
The MAX11041 contains an 8-word FIFO that can hold
enough information for four keypresses and releases.
Each keypress and release results in two data words
being stored into the FIFO. Each FIFO word consists of 2
bytes. The 1st byte is the decoded keypress or release
(K7–K0) and the 2nd byte is the keypress or release
duration time. Table 2 shows the format of a keypress
entry into the FIFO. Read the FIFO through the I2C-com-
patible serial interface (see the
Digital Serial Interface
section). At power-up, all the FIFO is reset such that
K7–K0 are set to 0xFF hex and 0x0F, and T6–T0 are set
to 0x00. See the
Applications Information section for an
example of how data is entered into the FIFO.
Wired Remote Controller
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
GND
Ground
2
SENSE
Voltage Sense Input. Connect SENSE to FORCE through an external lowpass filter composed of RSENSE
and CSENSE (see the FORCE and SENSE section). There is a ±15kV IEC 61000-4-2 ESD protection on
SENSE.
3, 11
VDD
Power-Supply Input. Connect both VDD inputs together and bypass each VDD with a 0.1F capacitor to
GND.
4
N.C.
No Connection. Leave unconnected or connect to VDD.
5A1
I2C Address Input 1. Logic state represents bit 1 of the I2C slave address.
6A0
I2C Address Input 0. Logic state represents bit 0 of the I2C slave address.
7
SHDN
Active-Low Shutdown Input. Bring SHDN low to put the MAX11041 in shutdown mode. FORCE is in a
high-impedance state while SHDN is low.
8
SCL
I2C Serial-Interface Clock Input. SCL requires a pullup resistor.
9
SDA
I2C Serial-Interface Data Input/Output. SDA requires a pullup resistor.
10
INT
Active-Low Interrupt Output. INT goes low when a valid keypress is detected at SENSE.
12
FORCE
Force Output. Connect FORCE to the external resistor array. Connect SENSE to FORCE through an
external lowpass filter composed of RSENSE = 10k
and CSENSE = 10nF. There is a ±15kV IEC 61000-4-2
ESD protection on FORCE.
EP
Exposed Pad. Connect EP to GND.
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相关代理商/技术参数 |
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| MAX11041有线遥控器 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| MAX11042 | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MAX11042ETC+ | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Wired Remote Controllers |
| MAX11043 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:4-Channel, 16-Bit, Simultaneous-Sampling ADCs with PGA, Filter, and 8-/12-Bit Dual-Stage DAC |
| MAX11043ATL+ | 功能描述:模数转换器 - ADC 16Bit 4Ch Simul-Samp w/PGA & 8/12Bit D-S RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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