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參數(shù)資料
| 型號： | TSC2300IPAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 24/81頁 |
| 文件大小： | 1039K |
| 代理商： | TSC2300IPAG |
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TSC2300
SLAS372 — NOVEMBER 2002
Table 16. PDN Bit Operation
PDN
VALUE
DESCRIPTION
0
Internal reference is powered at all times
1
Internal reference is powered down between conversions. (default)
Note that the PDN bit, in concert with the INT bit, creates a few possibilities for reference behavior. These are detailed
in Table 17.
Table 17. Reference Behavior Possibilities
INT
PDN
REFERENCE BEHAVIOR
0
External reference used, internal reference powered down.
0
1
External reference used, internal reference powered down.
1
0
Internal reference used, always powered up
1
Internal reference used, powers up during conversions and then powers down.
Bit 0 — RFV
Reference Voltage control. This bit selects the internal reference voltage, either 1.2 V or 2.5 V. The default value is 1.2
V. This bit is the same whether reading or writing.
Table 18. RFV Bit Operation
RFV
Value
Description
0
1.2-V reference voltage (default)
1
2.5-V reference voltage
TSC2300 Configuration Control Register (Page 1, Address 05H)
This control register controls the configuration of the precharge and sense times for the touch detect circuit. The
register is formatted as follows:
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
MSB
LSB
RES
PRE2
PRE1
PRE0
SNS2
SNS1
SNS0
Bits [5:3] — PRE[2:0]
Precharge time selection bits. These bits set the amount of time allowed for precharging any pin capacitance on the
touch screen prior to sensing if the screen is being touched.
Table 19. Precharge Times
PRE[2:0]
PRE2
PRE1
PRE0
TIME
0
20 s (default)
0
1
84 s
0
1
0
276 s
0
1
340 s
1
0
1.044 ms
30
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| TSC2301EVM | 功能描述:觸摸傳感器開發(fā)工具 TSC2301 Eval Mod RoHS:否 制造商:Cypress Semiconductor 工具用于評估: 接口類型: 工作電壓: 最大工作溫度: |
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