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参数资料
| 型号： | AD7877ACPZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 35/45页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT TOUCHSCREEN 32LFCSP |
| 标准包装： | 1,500 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1 TSC |
| 分辨率（位）： | 12 b |
| 评估套件： | 可供 |
| 数据接口： | 串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 125k |
| 电压基准： | 外部，内部 |
| 电源电压： | 2.7 V ~ 5.25 V |
| 电流 - 电源： | 1µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ |
| 包装： | 带卷 (TR) |
| 配用： | EVAL-AD7877EBZ-ND - BOARD EVALUATION FOR AD7877 |
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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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