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參數資料
| 型號： | TSC2046EIRGVR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC16 |
| 封裝： | 4 X 4 M, 0.80 MM HEIGHT, GREEN, PLASTIC, QFN-16 |
| 文件頁數： | 10/32頁 |
| 文件大小： | 755K |
| 代理商： | TSC2046EIRGVR |
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TSC2046E
SBAS417B JUNE 2007 REVISED JANUARY 2008
www.ti.com
18
+VCC S 2.7V, +VCC S IOVDD S 1.5V, CLOAD = 50pF
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
tACQ
Acquisition Time
1.5
s
tDS
DIN Valid Prior to DCLK Rising
100
ns
tDH
DIN Hold After DCLK High
50
ns
tDO
DCLK Falling to DOUT Valid
200
ns
tDV
CS Falling to DOUT Enabled
200
ns
tTR
CS Rising to DOUT Disabled
200
ns
tCSS
CS Falling to First DCLK Rising
100
ns
tCSH
CS Rising to DCLK Ignored
10
ns
tCH
DCLK High
200
ns
tCL
DCLK Low
200
ns
tBD
DCLK Falling to BUSY Rising/Falling
200
ns
tBDV
CS Falling to BUSY Enabled
200
ns
tBTR
CS Rising to BUSY Disabled
200
ns
Table 6. Timing Specifications, TA = 405C to +855C
1
DCLK
CS
11
DOUT
BUSY
A2
S
DIN
A1 A0 MOD E
SER/
DFR
PD1 PD0
10
9
8
765
43210
11 10
9
8
7
A1 A0
15
1
15
PowerDown
1
A2
SA1 A0 MODE
PD1 PD0
A2
S
SER/
DFR
Figure 13. Maximum Conversion Rate, 15 Clocks-per-Conversion
Data Format
The TSC2046E output data is in Straight Binary format, as
shown in Figure 14. This figure shows the ideal output
code for the given input voltage and does not include the
effects of offset, gain, or noise.
8-Bit Conversion
The TSC2046E provides an 8-bit conversion mode that
can be used when faster throughput is needed and the
digital result is not as critical. By switching to the 8-bit
mode, a conversion is complete four clock cycles earlier.
Not only does this shorten each conversion by four bits
(25% faster throughput), but each conversion can actually
occur at a faster clock rate. This faster rate occurs because
the internal settling time of the TSC2046E is not as
critical—settling to better than 8 bits is all that is needed.
The clock rate can be as much as 50% faster. The faster
clock rate and fewer clock cycles combine to provide a 2x
increase in conversion rate.
Ou
tp
u
t
C
o
d
e
0V
FS = Full Scale Voltage = V
REF
(1)
1LSB = V
REF
(1)/4096
FS
1LSB
11...111
11...110
11...101
00...010
00...001
00...000
1LSB
NOTES:
Input Voltage(2) (V)
(1) Reference voltage at converter: +REF
(REF); see Figure 2.
(2) Input voltage at converter, after multiplexer: +IN
(IN); see
Figure 2.
Figure 14. Ideal Input Voltages and Output Codes
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| TSC2046EIRGVRG4 | 功能描述:觸摸屏轉換器和控制器 4-Wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率: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 |
| TSC2046EIRGVT | 功能描述:觸摸屏轉換器和控制器 4-Wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率: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 |
| TSC2046EIRGVTG4 | 功能描述:觸摸屏轉換器和控制器 4-Wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率: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 |
| TSC2046EIZQCR | 功能描述:觸摸屏轉換器和控制器 4-Wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率: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 |
| TSC2046EIZQCT | 功能描述:觸摸屏轉換器和控制器 4-Wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率: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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