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參數(shù)資料
| 型號(hào)： | MAX11041ETC+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 16/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC REMOTE CTRLR WIRED 12-TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 應(yīng)用： | PDA，便攜式音頻/視頻，智能電話 |
| 接口： | I²C |
| 電源電壓： | 1.6 V ~ 3.6 V |
| 封裝/外殼： | 12-WQFN 裸露焊盤(pán) |
| 供應(yīng)商設(shè)備封裝： | 12-TQFN-EP（4x4） |
| 包裝： | 帶卷 (TR) |
| 安裝類(lèi)型： | 表面貼裝 |
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MAX11041
Keypress Detection and Debounce
At power-up, the MAX11041 begins to monitor the
SENSE input for keypresses. When the MAX11041
detects a keypress at SENSE, it attempts to debounce
the SENSE input. After successful debouncing of the
input, the corresponding keypress result is inserted into
the FIFO. In addition, INT goes low to signal a keypress
to the P.
Keypress FIFO and Time Duration
After detecting and debouncing a key, the decoded
key is stored in one byte of the 8-word FIFO. A 7-bit
internal timer starts counting the duration of the key-
press (one count = 32ms) and the result is stored after
each increment in another byte of the 8-word FIFO. The
8th bit in the time duration byte is an overflow bit that
is set when the count reaches 128. After the count
reaches 128, the 7-bit timer rolls over to 0 and contin-
ues to count while the 8th bit becomes set and stays
set until the associated FIFO entry is cleared. For key-
press durations longer than 8.16s, see the
Extended
Keypresses section.
When the device detects another change in resistance
at SENSE (either by key release or another keypress),
the count resets and the FIFO begin recording the next
keypress/duration. This allows the 8-word FIFO to store
time duration and key-type information for up to four
keypresses and releases. When the FIFO is full and a
key is pressed, the oldest keypress information in the
FIFO is written over. Writing to the power-down bit (bit
6) in the control register or bringing SHDN low clears
the FIFO to its power-on-reset (POR) state.
Wired Remote Controller
8
_______________________________________________________________________________________
1. DEBOUNCED KEYPRESS STORED IN FIFO AND INT GOES LOW, DURATION
TIMER STARTS.
2. PROCESSOR READS FIFO AND INT GOES HIGH. KEY TYPE AND CURRENT
KEYPRESS DURATION TIME SENT. FIFO IS NOT CLEARED.
3. KEYPRESS RELEASES AND INT GOES LOW. KEY TYPE AND FINAL KEYPRESS
DURATION TIME STORED IN FIFO.
4. PROCESSOR READS THE FIFO AND INT GOES HIGH. KEYPRESS INFORMATION
STORED IN FIFO FROM STEP 3 IS CLEARED.
KEY TYPE
TIME
VINT
Figure 3. Reading the FIFO While the Key is Still Pressed
TIME
VINT
1. DEBOUNCED KEYPRESS STORED IN FIFO AND INT GOES LOW.
DURATION TIMER STARTS.
2. KEYPRESS RELEASES. KEY TYPE AND KEYPRESS TIME
DURATION INFORMATION STORED IN FIFO.
3. PROCESSOR READS FIFO COMPLETELY AND INT GOES HIGH.
PREVIOUS KEYPRESS INFORMATION CLEARED.
KEY TYPE
Figure 4. Reading the FIFO After the Key is Released
BIT NAMES
CHIP ID
I7
I6
I5
I4
I3
I2
I1
I0
MAX11041
0
0000
000
Table 3. Chip ID Data Format
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX11043ATL+T | IC ADC 16BIT W/DAC 40-TQFN-EP |
| MAX11359AETL+T | IC DAS SYSTEM 16BIT 40-TQFN |
| MAX115CAX+ | IC DAS SYSTEM 12BIT 36-SSOP |
| MAX1221BETX+T | IC ADC/DAC 12BIT W/FIFO 36TQFNEP |
| MAX1257BETM+T | IC ADC/DAC 12BIT 48-TQFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11041有線遙控器 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述: |
| MAX11042 | 功能描述:接口 - 專(zhuān)用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MAX11042ETC+ | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Wired Remote Controllers |
| MAX11043 | 制造商:MAXIM 制造商全稱(chēng):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:模數(shù)轉(zhuǎn)換器 - ADC 16Bit 4Ch Simul-Samp w/PGA & 8/12Bit D-S RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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