參數(shù)資料
型號(hào)： TSC2101IRGZRG4
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC48
封裝： GREEN, PLASTIC, VQFN-48
文件頁(yè)數(shù)： 79/95頁(yè)
文件大小： 1217K
代理商： TSC2101IRGZRG4
TSC2101
SLAS392D JUNE 2003 REVISED MAY 2005
www.ti.com
80
Programmed for
Host Controlled
Mode With Invalid
A/D Function
Selected
Detecting Touch
Sample,Conversion &
Averaging for
BAT1 input
Reading
BAT1Data
Register
Waiting for Host to Write
into REG00 of PAGE01
Waiting for Host to
Write into REG00
of PAGE01
REG00 of
PAGE01
Is Updated
for
BAT1 Scan
Mode
Wait for Reference Power-Up Delay in Case
of Internal Ref Mode if Applicable
(As DATA_AVA
[D15D14 = 01])
PINTDAV
SS DEACTIVATED
The time needed for continuous autoscan mode is given by:
t + NINP
NAVG NBITS ) 1
8MHz
conv
) n1 ) 12 ) 1
tOSC ) 8 tOSC
) n2 tOSC ) tDEL ) n3 ) tOSC ) n4 tOSC
where:
NINP = 1; if autoscan is selected for only one input AUX1, AUX2, TEMP1 or TEMP2
= 2; if autoscan is selected for two inputs AUX1AUX2, AUX1TEMP1, AUX1TEMP2 etc
= 3; if autoscan is selected for three inputs AUX1AUX2TEMP1 or AUX1AUX2TEMP2
n1 = 6 ; if fconv = 8 MHz
7 ; if fconv p 8 MHz
n2 = 12 ; if one of the input selected is TEMP1
0 ; if measurement is for other than TEMP1
n3 = 0 ; if external reference mode is selected or tDEL = 0.
3 ; if tREF = 0 ms or reference is programmed for power up all the times.
1 + tREF/125 ns ; if tREF p 0us and reference needs to power down between conversions.
tREF is the reference power up delay time.
n4 = 0 ; if tDEL = 0.
= 7 ; if tDEL p 0
tDEL = Programmable delay in between conversion for nontouchscreen measurement
= 0 ; if programmable delay mode is disabled for nontouchscreen measurement
(1) The above equation is valid only from second conversion onwards.
(2) tDEL delay is generated by using internal oscillator clock whose typical frequency is 1 MHz in internal clock mode,
or MCLK/CLKDIV (as programmed in control register 14H/page 1) in external clock mode.
Programmed for
Host Controlled
Mode With Invalid
A/D Function
Selected
Detecting Touch
Sample,Conversion &
Averaging for
AUX input
Waiting for Host to
Write into REG00
of PAGE01
REG00 of
PAGE01
Is Updated
for Continous
AUX SCAN
Mode
Reading
AUXData
Register
Sample,Conversion &
Averaging for
AUX input
Sample,Conversion &
Averaging for
AUX input
Reading
AUXData
Register
(As DATA_AVA
[D15D14 = 01])
PINTDAV
SS DEACTIVATED
Wait for Reference Power-Up Delay in Case
of Internal Ref Mode if Applicable
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