參數(shù)資料
型號(hào)： TSC2200IPW
英文描述： PDA ANALOG INTERFACE CIRCUIT
中文描述： 掌上電腦模擬接口電路
文件頁(yè)數(shù)： 17/40頁(yè)
文件大?。?/td> 645K
代理商： TSC2200IPW
17
www.ti.com
TSC2200
SBAS191F
DL1
DL0
DELAY TIME
0
0
1
1
0
1
0
1
0
μ
s
100
μ
s
500
μ
s
1000
μ
s
TABLE XVII. Reference Power-Up Delay Settings.
PDN
VALUE
DESCRIPTION
0
1
Internal Reference is Powered at All Times
Internal Reference is Powered Down Between Conversions
TABLE XVIII. PDN Bit Operation.
INT
PDN
REFERENCE BEHAVIOR
0
0
External Reference Used, Internal Reference Powered Down
0
1
External Reference Used, Interenal Reference Powered Down
1
1
0
1
Internal Reference Used, Always Powered Up
Internal Reference Used, Will Power Up During Conversions
and Then Power Down
TABLE XIX. Reference Behavior Possibilities.
MSB
BIT 15
LSB
BIT 0
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
X
X
X
X
X
X
X
X
X
X
PRE2
PRE1
PRE0
SNS2
SNS1
SNS0
TABLE XXI. Configuration Control Register.
PRE[2:0]
PRE2
PRE1
PRE0
TIME
20
μ
s
84
μ
s
276
μ
s
340
μ
s
1.044ms
1.108ms
1.300ms
1.364ms
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
TABLE XXIII. Precharge Times.
SNS[2:0]
SNS2
SNS1
SNS0
TIME
32
μ
s
96
μ
s
544
μ
s
608
μ
s
2.080ms
2.144ms
2.592ms
2.656ms
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
TABLE XXIV. Sense Times.
RFV
VALUE
DESCRIPTION
0
1
1.25V Reference Voltage
2.5V Reference Voltage
TABLE XX. RFV Bit Operation.
DAVB
VALUE
DESCRIPTION
0
Data from A/D conversion is available. This will stay at 0
until the host has read all updated registers.
No new data is available.
1
TABLE XXII. PDN Bit Operation.
Bit 1: PDN
—
Reference Power Down. If a 1 is written to this
bit, the internal reference will be powered down between
conversions. If this bit is a zero, the internal reference will be
powered at all times. The default state is to power down the
internal reference, so this bit will be a 1. This bit is the same
whether reading or writing.
Note that the PDN bit, in concert with the
INT
bit, creates a
few possibilities for reference behavior. These are detailed in
Table XIX.
Bit 0: RFV
—
Reference Voltage control. This bit selects the
internal reference voltage, either 1.25V or 2.5V. The default
value is 1.25V. This bit is the same whether reading or writing.
TSC2200 CONFIGURATION CONTROL REGISTER
(PAGE 1, ADDRESS 05
H
)
This control register controls the configuration of the precharge
and sense times for the touch detect circuit. The register is
formatted as shown in Table XXI.
Bit 6: DAVB
= Data Available. This bit mirrors the operation
of the
DAV
pin. When any conversion is complete, the
DAV
pin and this bit will be a logic 0 (LOW). It will stay LOW until
the register(s) updated by the conversion have been read.
When all updated data has been read by the host, the
DAV
pin and this bit will return to a logic 1 (HIGH).
Bits [5:3]: PRE[2:0]
—
Precharge Time Selection. These bits
set the amount of time allowed for precharging any pin
capacitance on the touch screen prior to sensing if a screen
touch is happening.
Bits [2:0]: SNS[2:0]
—
Sense Time Selection. These bits set
the amount of time the TSC2200 will wait to sense a screen
touch between coordinate axis conversions in
PENIRQ
-
controlled mode.
TSC2200 KEYPAD REGISTERS
The Keypad scanner hardware in the TSC2200 is controlled
by two registers: the Keypad Control register and the Keypad
Mask register. The Keypad Control register controls general
keypad functions such as scanning and de-bouncing, whereas
the Keypad Mask register allows certain keys to be masked
from being detected at all.
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TSC2200IPWG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2200IPWR 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2200IPWRG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2200IRHB 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2200IRHBG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
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