參數(shù)資料
型號(hào)： AD7879-1WACPZ-RL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 21/41頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT CTRLR TOUCH 16LFCSP
標(biāo)準(zhǔn)包裝： 1,500
類型： 電阻
觸摸面板接口： 4 線
輸入數(shù)/鍵： 1 TSC
分辨率（位）： 12 b
評(píng)估套件： *
數(shù)據(jù)接口： I²C，串行
數(shù)據(jù)速率/采樣率 (SPS，BPS)： 105k
電壓基準(zhǔn)： 內(nèi)部
電源電壓： 1.6 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-VQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 16-LFCSP-VQ EP（4x4）
包裝： 帶卷 (TR)
AD7879/AD7889
Rev. C | Page 27 of 40
ADC Channel (Control Register 1, Bits[14:12])
The ADC channel address is selected by Bits[14:12] of Control
Register 1 (CHNL ADD2 to CHNL ADD0). A complete list of
channel addresses is given in Table 21.
For single-channel conversion, the channel address is selected
by writing the appropriate code to the CHNL ADD2 to CHNL
ADD0 bits in Control Register 1.
For sequential channel conversion, the channels to be converted
are selected by setting the bits corresponding to the channel
number in Control Register 3 for slave and master mode
sequencing.
For both single-channel and sequential conversion, a normal
conversion (single-ended) is selected by setting the SER/DFR
bit in Control Register 2 (Bit 9). Ratiometric (differential)
conversion is selected by clearing the SER/DFR bit.
PENIRQ Enable (Control Register 1, Bit 15)
The AD7879/AD7889 have a dual function output that performs
as PENIRQ or INT depending on the pen interrupt enable bit
(Bit 15 of Control Register 1). When this bit is set to 0, the pin
functions as a pen interrupt and goes low whenever the screen
is touched. When the pen interrupt enable bit is set to 1, the pen
interrupt request is disabled and the pin functions as an interrupt
when a measurement exceeds a preprogrammed limit (INT).
Table 21. Codes for Selecting Input Channel and Normal or Ratiometric Conversion
Channel
SER/DFR
CHNL ADD[2:0]
Analog Input
X Switches
Y Switches
REF+
REF
0
111
X+ (Y position)
Off
On
Y+
Y
1
0
110
Y+ (X position)
On
Off
X+
X
2
0
101
X+ (Z1 touch pressure)
X+ off, X on
Y+ on, Y off
Y+
X
3
0
100
Y (Z2 touch pressure)
X+ off, X on
Y+ on, Y off
Y+
X
4
0
011
AUX
Off
VCC
GND
5
0
010
VBAT
Off
VCC
GND
6
0
001
TEMP
Off
VCC
GND
0
000
Invalid address
7
1
111
X+ (Y position)
Off
On
VCC
GND
8
1
110
Y+ (X position)
On
Off
VCC
GND
9
1
101
X+ (Z1 touch pressure)
Off
VCC
GND
12
1
100
Y (Z2 touch pressure)
Off
VCC
GND
13
1
011
AUX
Off
VCC
GND
14
1
010
VBAT
Off
VCC
GND
15
1
001
TEMP
Off
VCC
GND
1
000
Invalid address
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參數(shù)描述
AD7879-1WARUZ-RL 功能描述:IC ADC 12BIT CTRLR TOUCH 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 觸摸屏控制器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數(shù)/鍵:- 分辨率（位）:- 評(píng)估套件:* 數(shù)據(jù)接口:- 數(shù)據(jù)速率/采樣率 (SPS，BPS):- 電壓基準(zhǔn):- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
AD7879-1WARUZ-RL7 功能描述:IC ADC 12BIT CTRLR TOUCH 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 觸摸屏控制器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數(shù)/鍵:- 分辨率（位）:- 評(píng)估套件:* 數(shù)據(jù)接口:- 數(shù)據(jù)速率/采樣率 (SPS，BPS):- 電壓基準(zhǔn):- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
AD7879ACBZ-500R7 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Voltage Controller for Touch Screens
AD7879ACBZ-RL 制造商:Analog Devices 功能描述:
AD7879ACPZ-500R7 制造商:Analog Devices 功能描述:TOUCH SCREEN CONTROLLER - Tape and Reel 制造商:Analog Devices 功能描述:ADC 12BIT 3.6V 105KSPS SPI 16LFCSP 制造商:Analog Devices 功能描述:ADC, 12BIT, 3.6V, 105KSPS, SPI, 16LFCSP 制造商:Analog Devices 功能描述:ADC, 12BIT, 3.6V, 105KSPS, SPI, 16LFCSP; Resolution (Bits):12bit; Sampling Rate:105kSPS; Digital IC Case Style:LFCSP; No. of Pins:16; Input Channel Type:Single Ended; Data Interface:SPI; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes
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