Electronic Components Datasheet Search |
|
TS2043 Datasheet(PDF) 7 Page - Unisonic Technologies |
|
TS2043 Datasheet(HTML) 7 Page - Unisonic Technologies |
7 / 8 page TS2043 Preliminary CMOS IC UNISONICTECHNOLOGIESCO.,LTD 7 of 8 www.unisonic.com.tw QW-R502-404.a APPLICATION INFORMATION(Cont.) Serial Interface Once a falling signal applies on /CS pin (active in low), the operation is initiated. After /CS falls, the UTC TS2043 begins to look for a start bit on the DIN input. At the end of the operation the /CS pin should be pulled high, which minimizes supply current if DCLK is left running. Control Byte The first eight clock cycles provides the control byte on DIN pin. (See Table I and Table II for more information). The control byte represents the start operation, addressing, resolution, and power down information. Table I. Control Bits in the Control Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Start A2 A1 A0 Mode1 Mode0 PD1 PD0 Table II. Description of the Control Bits BIT NAME DESCRIPTION 7 Start Start Bit. 6,5,4 A2,A1,A0 Input Channel Select Bits. 3,2 Mode1 Mode0 12-Bit / 8-Bit Conversion Configuration Bit. 1,0 PD1,PD0 Power Down Control Bits Start Bit – Initiate Start The control byte starts with the first high bit on DIN. The first bit must always be logic high (1) to initiate the start of the conversion. The UTC TS2043 will not start until the start bit is detected. Addressing Bits – Input Channel Selection The next three bits on control byte are addressing bits (A2, A1, A0), which select the active input channel of the input multiplexer, and touch panel drivers. (See Table III for more information). Table III. Input Channel Configuration A2 A1 Input Channel X Switch Y Switch Reference 0 0 X+ OFF ON VREF 1 0 Y+ ON OFF VREF 0 1 IN3 OFF OFF VREF 1 1 IN4 OFF OFF VREF Mode Bits – Conversion Resolution Configuration The Mode bits (Mode1, Mode0) set the resolution of this device. 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. (See Table IV for more information.) Table IV. Resolution Configuration Mode1 Mode0 DESCRIPTION 0 1 12bits Resolution 0 0 12bits Resolution 1 1 8bits Resolution 1 0 8bits Resolution PD0 and PD1 Bits - Power Down Control The last two bits are PD1 and PD0 bits, which control the power down mode of the UTC TS2043. Through applying a same logic high(1) this device enters a power-up mode, while enters a power-down mode by a same logic low (0) on PD1 and PD0 bits.(See Table V for more information). Table V. Power-Down Selection PD1 PD0 PENIRQ DESCRIPTION 0 0 Enable Power-Down between conversions. Y- switch is on. 0 1 Disable Power-Down between conversions. Y- switch is off. /PENIRQ is disabled 1 0 Disable No used. 1 1 Disable No Power-Down between conversions. |
Similar Part No. - TS2043 |
|
Similar Description - TS2043 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
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 |