поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

SS7646 датащи(PDF) 6 Page - Silicon Standard Corp.

номер детали SS7646
подробное описание детали  Touch Screen Controller
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  SSC [Silicon Standard Corp.]
домашняя страница  http://www.siliconstandard.com
Logo SSC - Silicon Standard Corp.

SS7646 датащи(HTML) 6 Page - Silicon Standard Corp.

Back Button SS7646 Datasheet HTML 2Page - Silicon Standard Corp. SS7646 Datasheet HTML 3Page - Silicon Standard Corp. SS7646 Datasheet HTML 4Page - Silicon Standard Corp. SS7646 Datasheet HTML 5Page - Silicon Standard Corp. SS7646 Datasheet HTML 6Page - Silicon Standard Corp. SS7646 Datasheet HTML 7Page - Silicon Standard Corp. SS7646 Datasheet HTML 8Page - Silicon Standard Corp. SS7646 Datasheet HTML 9Page - Silicon Standard Corp. SS7646 Datasheet HTML 10Page - Silicon Standard Corp. Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 13 page
background image
www.SiliconStandard.com
4 of 5
SS7646
8/21/2004 Rev.2.01
The Control Byte :
Table I and Table II show detailed information of the
control byte (on DIN). The control byte provides the
start operation, addressing, resolution, reference and
power down information to the SS7646.
Start Bit –
Initiate Start
The control byte starts with the first high bit on DIN.
The first bit must always be HIGH (1) to initiate the start
of the conversion. The SS7646 will ignore any
inputs on the DIN until the start bit is detected.
Addressing Bits –
Input Channel Selection
The next three bits on control byte (A2, A1, A0) select
the active input channel of the input multiplexer (see
Table III, and Figure 5), and touch screen drivers.
Mode Bits –
Resolution and Reference Configuration
The Mode bits (Mode1, Mode0) set the resolution of
the analog-to-digital (ADC) converter. With the Mode1
bit LOW (0) the following conversion will have 12 bits of
resolution. With the Mode1 bit HIGH (1) the following
conversion will have 8 bits of resolution. The MODE0
bit set the reference input of the ADC (see Reference
Input section and Figure 5). Table IV shows detailed
i
nformation of the Mode Bits.
PD0 and PD1 Bits -
Power Down Control
The last two bits (PD1, PD0) control the power-down
mode and pen interrupt request of the SS7646. If both
bits are HIGH (1), the ADC is always powered up and
pen interrupt will be disabled. If both bits are LOW (0),
the ADC enters a power-down mode between
conversions. The internal 2.5V voltage reference can
be turned ON or OFF independently of the ADC with
the PD1 bit. See Table V for more information.
A2 A1 A0
Measure
Input
Channel
X Switch Y Switch
0 0
1 Y-POSITION
X+
OFF
ON
1 0
1 X-POSITION
Y+
ON
OFF
0 1
1 Z1-POSITION
X+
X- ON
Y+ ON
1 0
0 Z2-POSITION
Y-
X- ON
Y+ ON
0 1
0
Battery
VBAT
OFF
OFF
1 1
0
Auxiliary
VIN
OFF
OFF
0 0
0
TEMP0
-
OFF
OFF
1 1
1
TEMP1
-
OFF
OFF
Table III. Input Channel Configuration
Operation of 16-Clocks
The typical operation of the SS7646 is 24-clocks (three
control bytes) per conversion. However the control bits
for the next conversion can be overlapped with current
conversion for a faster conversion. Figure 3 shows the
timing of 16-Clocks per conversion.
Operation of 15-Clocks
The fastest operation (15-clocks per conversion) of
SS7646 is shown on Figure 4. This operation will
not wo r k wi th t he s e r i a l i nte r f a c e of m o s t
microcontrollers and digital signal processors, as they
are not capable of providing 15 clocks cycles per serial
transfer.
MODE1 MODE0
Resolution
ADC Reference
0
1
12bits
VREF
0
0
12bits
VDD
*
1
1
8bits
VREF
1
0
8bits
VDD
*
Table IV. Resolution and Reference Configuration
* When measuring Y(001), X(101), Z1(011) and Z2(100) positions,
otherwise Invalid configuration
PD1 PD0 /PENIRQ DESCRIPTION
0
0
Enable The reference is switching OFF
and the ADC will powerdown
betweenconversions. Y- switch is on
while in power-down.
0
1
Enable The reference is switching OFF
and the ADC is ON permanently.
No power down between
conversions.
1
0
Enable The reference is ON and the
ADC will power down between
conversions.
1
1
Disable The reference and the ADC are
ON. No power down between
conversions, the ADC always
power up. The pen interrupt
functionality will be disabled.
Table V
. Power-Down and Pen Interrupt Selection


Аналогичный номер детали - SS7646

производительномер деталидатащиподробное описание детали
logo
List of Unclassifed Man...
SS7619-15 ETC2-SS7619-15 Datasheet
464Kb / 4P
   Tripp Lite Power Strip with Surge Suppression - Multiple outlets wherever you need them
More results

Аналогичное описание - SS7646

производительномер деталидатащиподробное описание детали
logo
Integrated Device Techn...
MK712 IDT-MK712 Datasheet
418Kb / 21P
   TOUCH SCREEN CONTROLLER
logo
Texas Instruments
ADS7843 TI1-ADS7843 Datasheet
652Kb / 18P
[Old version datasheet]   TOUCH SCREEN CONTROLLER
logo
Burr-Brown (TI)
ADS7843 BURR-BROWN-ADS7843 Datasheet
163Kb / 12P
   TOUCH SCREEN CONTROLLER
ADS7846 BURR-BROWN-ADS7846 Datasheet
520Kb / 23P
   TOUCH-SCREEN CONTROLLER
logo
Asahi Kasei Microsystem...
AK4182 AKM-AK4182 Datasheet
190Kb / 18P
   Touch Screen Controller
logo
List of Unclassifed Man...
XPT2046 ETC2-XPT2046 Datasheet
821Kb / 30P
   Touch Screen Controller
2007
logo
Burr-Brown (TI)
ADS7845 BURR-BROWN-ADS7845 Datasheet
173Kb / 12P
   TOUCH SCREEN CONTROLLER
logo
Integrated Circuit Syst...
MK715 ICST-MK715 Datasheet
376Kb / 22P
   Touch Screen Controller
logo
Analog Devices
AD7877 AD-AD7877 Datasheet
1,002Kb / 44P
   Touch Screen Controller
REV. A
logo
Anpec Electronics Corop...
APT7846 ANPEC-APT7846 Datasheet
583Kb / 15P
   Touch Screen Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com