參數(shù)資料
型號： AD7877ACBZ-REEL7
廠商： Analog Devices Inc
文件頁數(shù)： 36/45頁
文件大?。?/td> 0K
描述： IC CTRLR TOUCH SCREEN 25-WLCSP
標(biāo)準(zhǔn)包裝： 1
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
評估套件： 可供
數(shù)據(jù)接口： 串行，SPI?
數(shù)據(jù)速率/采樣率 (SPS，BPS)： 125k
電壓基準(zhǔn)： 外部，內(nèi)部
電源電壓： 2.7 V ~ 5.25 V
電流 - 電源： 1µA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 25-UFBGA，WLCSP
供應(yīng)商設(shè)備封裝： 25-WLCSP
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面： 779 (CN2011-ZH PDF)
配用： EVAL-AD7877EBZ-ND - BOARD EVALUATION FOR AD7877
其它名稱： AD7877ACBZ-REEL7DKR
AD7877
Data Sheet
Rev. D | Page 40 of 44
Register Name: DAC Register
Write Address: 1110
Read Address:
01110
Default Value:
0x008
Type:
Read/write
Table 21.
Bit
Name
Read/Write
Description
0
RANGE
R/W
Output range of the DAC in voltage mode
0 = 0 to VCC/2
1 = 0 to VCC
1
Not Used
R/W
This bit is not used
2
V/I
R/W
Voltage output and current output
0 = voltage
1 = current
3
PD
R/W
DAC power-down
0 = DAC on
1 = DAC powered down
4
DAC0
LSB of DAC data
5
DAC1
Bit 1 of DAC data
6
DAC2
Bit 2 of DAC data
7
DAC3
Bit 3 of DAC data
8
DAC4
Bit 4 of DAC data
9
DAC5
Bit 5 of DAC data
10
DAC6
Bit 6 of DAC data
11
DAC7
MSB of DAC data
Register Name: Y Position
Write Address: N/A
Read Address:
10000
Default Value:
0x000
Type:
Read only
This register contains the 12-bit result of the measurement at
the X+ input with Y layer excited (Y position measurement).
Register Name: X Position
Write Address: N/A
Read Address:
10001
Default Value:
0x000
Type:
Read only
This register contains the 12-bit result of the measurement at
the Y+ input with X layer excited (X position measurement).
Register Name: Z2
Write Address: N/A
Read Address:
10010
Default Value:
0x000
Type:
Read only
This register contains the 12-bit result of the measurement at
the Y input with excitation voltage applied to Y+ and X (used
for touch-pressure calculation).
Register Name: AUX1
Write Address: N/A
Read Address:
10011
Default Value:
0x000
Type:
Read only
This register contains the 12-bit result of the measurement at
Auxiliary Input 1.
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