參數(shù)資料
型號(hào)： AD7877ACPZ-500RL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 35/45頁(yè)
文件大小： 0K
描述： IC ADC 12BIT TOUCHSCREEN 32LFCSP
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(píng)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： 32-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 32-LFCSP-VQ
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： AD7877ACPZ-500RL7DKR
Data Sheet
AD7877
Rev. D | Page 39 of 44
Register Name: Sequencer Register 0
Write Address: 1100
Read Address:
01100
Default Value:
0x000
Type:
Read/write
Table 19.
Bit
Name
Read/Write
Description
0
Not Used
R/W
This bit is not used
1
Z1_SS
R/W
Setting this bit includes the Z1 touch-pressure measurement (X+ input) in a slave mode sequence
2
TEMP2_SS
R/W
Setting this bit includes a temperature measurement using differential conversion in a slave mode
sequence
3
TEMP1_SS
R/W
Setting this bit includes a temperature measurement using single-ended conversion in a slave mode
sequence
4
BAT2_SS
R/W
Setting this bit includes measurement of Battery Monitor Input 2 in a slave mode sequence
5
BAT1_SS
R/W
Setting this bit includes measurement of Battery Monitor Input 1 in a slave mode sequence
6
AUX3_SS
R/W
Setting this bit includes measurement of Auxiliary Input 3 in a slave mode sequence
7
AUX2_SS
R/W
Setting this bit includes measurement of Auxiliary Input 2 in a slave mode sequence
8
AUX1_SS
R/W
Setting this bit includes measurement of Auxiliary Input 1 in a slave mode sequence
9
Z2_SS
R/W
Setting this bit includes the Z2 touch-pressure measurement (Y input) in a slave mode sequence
10
XPOS_SS
R/W
Setting this bit includes measurement of the X position (Y+ input) in a slave mode sequence
11
YPOS_SS
R/W
Setting this bit includes measurement of the Y position (X+ input) in a slave mode sequence
Register Name: Sequencer Register 1
Write Address: 1101
Read Address:
01101
Default Value:
0x000
Type:
Read/write
Table 20.
Bit
Name
Read/Write
Description
0
Not Used
R/W
This bit is not used
1
Z1_MS
R/W
Setting this bit includes the Z1 touch-pressure measurement (X+ input) in a master mode sequence
2
TEMP2_MS
R/W
Setting this bit includes a temperature measurement using differential conversion in a master mode
sequence
3
TEMP1_MS
R/W
Setting this bit includes a temperature measurement using single-ended conversion in a master mode
sequence
4
BAT2_MS
R/W
Setting this bit includes measurement of Battery Monitor Input 2 in a master mode sequence
5
BAT1_MS
R/W
Setting this bit includes measurement of Battery Monitor Input 1 in a master mode sequence
6
AUX3_MS
R/W
Setting this bit includes measurement of Auxiliary Input 3 in a master mode sequence
7
AUX2_MS
R/W
Setting this bit includes measurement of Auxiliary Input 2 in a master mode sequence
8
AUX1_MS
R/W
Setting this bit includes measurement of Auxiliary Input 1 in a master mode sequence
9
Z2_MS
R/W
Setting this bit includes the Z2 touch-pressure measurement (Y input) in a master mode sequence
10
XPOS_MS
R/W
Setting this bit includes measurement of the X position (Y+ input) in a master mode sequence
11
YPOS_MS
R/W
Setting this bit includes measurement of the Y position (X+ input) in a master mode sequence
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