参数资料
型号: TSC2301IZQZR
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA120
封装: GREEN, PLASTIC, VFBGA-120
文件页数: 27/95页
文件大小: 1322K
代理商: TSC2301IZQZR
www.ti.com
TSC2301 Configuration Control Register (Page 1, Address 05H)
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
Table 15. 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 16.
Table 16. 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 17. RFV Bit Operation
RFV
Value
Description
0
1.2-V reference voltage (default)
1
2.5-V reference voltage
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
33
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