- 鎮ㄧ従(xi脿n)鍦ㄧ殑浣嶇疆锛�璨疯常IC缍�(w菐ng) > PDF鐩寗9708 > MAX11800ETC+T (Maxim Integrated Products)IC TOUCH SCREEN CTLR 12-TQFN PDF璩囨枡涓嬭級
鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉(h脿o)锛� | MAX11800ETC+T |
| 寤犲晢锛� | Maxim Integrated Products |
| 鏂囦欢闋�(y猫)鏁�(sh霉)锛� | 17/59闋�(y猫) |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC TOUCH SCREEN CTLR 12-TQFN |
| 鍏跺畠鏈夐棞(gu膩n)鏂囦欢锛� | Automotive Product Guide |
| 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 2,500 |
| 椤炲瀷锛� | 闆婚樆 |
| 瑙告懜闈㈡澘鎺ュ彛锛� | 4 绶� |
| 杓稿叆鏁�(sh霉)/閸碉細 | 1 TSC |
| 鍒嗚鲸鐜囷紙浣嶏級锛� | 12 b |
| 瑭�(p铆ng)浼板浠讹細 | 鍙緵 |
| 鏁�(sh霉)鎿�(j霉)鎺ュ彛锛� | 涓茶锛孲PI? |
| 鏁�(sh霉)鎿�(j霉)閫熺巼/閲囨ǎ鐜� (SPS锛孊PS)锛� | 105k |
| 闆绘簮闆诲锛� | 1.7 V ~ 3.6 V |
| 宸ヤ綔婧害锛� | -40°C ~ 85°C |
| 瀹夎椤炲瀷锛� | 琛ㄩ潰璨艰 |
| 灏佽/澶栨锛� | 12-WQFN 瑁搁湶鐒婄洡 |
| 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 | 12-TQFN-EP锛�4x4锛� |
| 鍖呰锛� | 甯跺嵎 (TR) |
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MAX11800鈥揗AX11803
Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I2C/SPI Interface
24
______________________________________________________________________________________
Features Available in the
MAX11800/MAX11801 Only
Autonomous Mode
The MAX11800/MAX11801 can perform measurements
automatically without the AP involvement, and is
referred to as autonomous conversion mode (ACM).
When operating in ACM, the MAX11800/MAX11801 use
an on-chip FIFO to store measurement results. As each
new data is written to the FIFO, an interrupt is generat-
ed. The AP can choose to service (read) the FIFO result
after each interrupt or wait until the FIFO is full then
read the entire FIFO contents at once. The AP can also
read the contents of the FIFO at any time. See the
Autonomous Conversion Mode section for a further
description of operations.
Aperture
The MAX11800/MAX11801 contain a feature referred to
as aperture. It is only available on the MAX11800/
MAX11801 when operating in autonomous conversion
mode. The aperture feature creates an invisible rectan-
gle around a touch location within the MAX11800/
MAX11801 hardware. The size of the rectangle is user
programmable. One application of the aperture feature
is to provide 鈥渟patial hysteresis.鈥� Spatial hysteresis can
be useful for applications that require lower resolution
touch accuracy without requiring the AP to handle the
mathematics involved to filter out extraneous data.
Another application would be to use the aperture fea-
ture to implement simple single finger or stylus ges-
tures. See the
Using Aperture Mode section for a
further description of operations.
Panel Setup, Measurement, and Scan Commands
To simplify measurement procedures, the MAX11800鈥�
MAX11803 support three types of commands: panel
setup commands (PSU), panel measurement commands
(PMC), and combined measurement commands (CMC).
In direct conversion mode, the MAX11800/MAX11801
can use all three types of commands. Using individual
panel setup and measurement commands allow for a
high degree of customization based on decisions made
by the AP, while using combined commands signifi-
cantly simplifies the complete measurement process
and reduces communications between the AP and the
MAX11800鈥揗AX11803.
In autonomous mode, the MAX11800/MAX11801 use
combined commands to control and automate all
aspects of panel setup, measurements, and timing. See
the
Operating Mode Configuration Register (0x0B) sec-
tion for more details.
Direct Conversion Mode Operations
In direct conversion mode, the AP requests individual
panel setup and conversion operations or automated
combinations of measurements (X and Y, X and Y and
Z1, or X and Y and Z1 and Z2 combined). Unlike
autonomous conversion modes, the AP maintains control
over the initiation of panel setup, measurements events,
and the sampling frequency. Figure 8 shows the state
machine transitions for direct conversion mode.
Interrupt Modes
The MAX11800鈥揗AX11803 support two direct conver-
sion interrupt modes. The two direct conversion modes
are the continuous interrupt mode (CINT) and the edge
interrupt mode (EINT).
Continuous Interrupt Mode
In continuous interrupt mode, the panel returns to TDM
and idle. The current status of the panel is then sent
through TIRQ. The continuous interrupt mode is the
least efficient mode in current consumption for long
duration of touches. The power consumption is approxi-
mated by PTOUCH = VDD2/RPU. The power consump-
tion levels observed when the panel is not touched is
limited by the junction leakage currents of the
MAX11800鈥揗AX11803.
Procedure: The MAX11800鈥揗AX11803 idle in TDM.
The TIRQ output goes low when a touch is detected on
the panel indicating to the AP that a touch is present
and a measurement operation starts.
The AP requests specific panel measurements through
the serial interface. TIRQ stays low during panel setup
and measurement operations. Once a measurement is
complete (with the 鈥渃ontinuous鈥� bit, CONT = 0, see
Table 1), the MAX11800鈥揗AX11803 check for the con-
tinued presence of a touch on the panel and tag the data
accordingly (see Table 6). The duration of this operation
is programmable, specified in the touch-detect pullup
timing configuration register (0x07). After the data is
tagged, the data is available for readback through the
serial interface. The MAX11800鈥揗AX11803 return to
TDM and return control of TIRQ to the TDM circuitry.
TIRQ stays low while a touch remains present, indicating
further measurements are required, otherwise TIRQ goes
high until a new touch is observed.
Continuous interrupt mode (CINT) allows the complete
control over the measurement operations and direct obser-
vation of the touch status of the panel. Figure 9 shows the
polling of TIRQ when other functions share the TIRQ bus. In
the illustration of Figure 9, no 鈥�10鈥� event tag is observed
because the release occurs during a TDM period.
鐩搁棞(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| MS3124E16-26SW | CONN RCPT 26POS JAM NUT W/SCKT |
| MAX11801ETC+T | IC TOUCH SCREEN CTLR 12-TQFN |
| MS3124E16-26S | CONN RCPT 26POS JAM NUT W/SCKT |
| MAX11800ETC/V+T | IC TOUCH SCREEN CTRLR LP 12WQFN |
| VI-2TY-MV-F3 | CONVERTER MOD DC/DC 3.3V 99W |
鐩搁棞(gu膩n)浠ｇ悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉) |
鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| MAX11800EVKIT+ | 鍔熻兘鎻忚堪:椤ず闁嬬櫦(f膩)宸ュ叿 MAX11800 Eval Kit RoHS:鍚� 鍒堕€犲晢:4D Systems 鐢�(ch菐n)鍝�:4Display Shields 宸ュ叿鐢ㄤ簬瑭�(p铆ng)浼�:?OLED-160-G1, ?OLED-160-G2 鎺ュ彛椤炲瀷:Serial 宸ヤ綔闆绘簮闆诲:5 V |
| MAX11800EWC+T | 鍔熻兘鎻忚堪:瑙告懜灞忚綁(zhu菐n)鎻涘櫒鍜屾帶鍒跺櫒 SPI 4Ch Touch Screen Controller RoHS:鍚� 鍒堕€犲晢:Microchip Technology 椤炲瀷:Resistive Touch Controllers 杓稿叆椤炲瀷:3 Key 鏁�(sh霉)鎿�(j霉)閫熺巼:140 SPS 鍒嗚鲸鐜�:10 bit 鎺ュ彛椤炲瀷:4-Wire, 5-Wire, 8-Wire, I2C, SPI 闆绘簮闆诲:2.5 V to 5.25 V 闆绘簮闆绘祦:17 mA 宸ヤ綔婧害:- 40 C to + 85 C 灏佽 / 绠遍珨:SSOP-20 |
| MAX11800GTC/V+ | 鍔熻兘鎻忚堪:瑙告懜灞忚綁(zhu菐n)鎻涘櫒鍜屾帶鍒跺櫒 SPI 4Ch Touch Screen Controller RoHS:鍚� 鍒堕€犲晢:Microchip Technology 椤炲瀷:Resistive Touch Controllers 杓稿叆椤炲瀷:3 Key 鏁�(sh霉)鎿�(j霉)閫熺巼:140 SPS 鍒嗚鲸鐜�:10 bit 鎺ュ彛椤炲瀷:4-Wire, 5-Wire, 8-Wire, I2C, SPI 闆绘簮闆诲:2.5 V to 5.25 V 闆绘簮闆绘祦:17 mA 宸ヤ綔婧害:- 40 C to + 85 C 灏佽 / 绠遍珨:SSOP-20 |
| MAX11800GTC/V+T | 鍔熻兘鎻忚堪:瑙告懜灞忚綁(zhu菐n)鎻涘櫒鍜屾帶鍒跺櫒 SPI 4Ch Touch Screen Controller RoHS:鍚� 鍒堕€犲晢:Microchip Technology 椤炲瀷:Resistive Touch Controllers 杓稿叆椤炲瀷:3 Key 鏁�(sh霉)鎿�(j霉)閫熺巼:140 SPS 鍒嗚鲸鐜�:10 bit 鎺ュ彛椤炲瀷:4-Wire, 5-Wire, 8-Wire, I2C, SPI 闆绘簮闆诲:2.5 V to 5.25 V 闆绘簮闆绘祦:17 mA 宸ヤ綔婧害:- 40 C to + 85 C 灏佽 / 绠遍珨:SSOP-20 |
| MAX11800TEVS+ | 鍔熻兘鎻忚堪:椤ず闁嬬櫦(f膩)宸ュ叿 SPI 4Ch Touch Screen Controller RoHS:鍚� 鍒堕€犲晢:4D Systems 鐢�(ch菐n)鍝�:4Display Shields 宸ュ叿鐢ㄤ簬瑭�(p铆ng)浼�:?OLED-160-G1, ?OLED-160-G2 鎺ュ彛椤炲瀷:Serial 宸ヤ綔闆绘簮闆诲:5 V |
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