Os motores de busca de Datasheet de Componentes eletrônicos |
|
AD7889 Folha de dados(PDF) 38 Page - Analog Devices |
|
AD7889 Folha de dados(HTML) 38 Page - Analog Devices |
38 / 40 page AD7879/AD7889 Data Sheet Rev. D | Page 38 of 40 GROUNDING AND LAYOUT For detailed information on grounding and layout considerations for the AD7879/AD7889, refer to the AN-577 Application Note, Layout and Grounding Recommendations for Touch Screen Digitizers. LEAD FRAME CHIP SCALE PACKAGES The lands on the lead frame chip scale package (CP-16-20) are rectangular. The printed circuit board (PCB) pad for these lands should be 0.1 mm longer than the package land length and 0.05 mm wider than the package land width. Center the land on the pad to maximize the solder joint size. The bottom of the lead frame chip scale package has a central thermal pad. The thermal pad on the PCB should be at least as large as this exposed pad. To avoid shorting, provide a clearance of at least 0.25 mm between the thermal pad and the inner edges of the land pattern on the PCB. Thermal vias can be used on the PCB thermal pad to improve the thermal performance of the package. If vias are used, incorporate them into the thermal pad at a 1.2 mm pitch grid. The via diameter should be between 0.3 mm and 0.33 mm, and the via barrel should be plated with 1 oz. of copper to plug the via. Connect the PCB thermal pad to GND. WLCSP ASSEMBLY CONSIDERATIONS For detailed information on the WLCSP PCB assembly and reliability, see the AN-617 Application Note, Wafer Level Chip Scale Package. NIC = NO INTERNAL CONNECTION 1 Y+ 2 NIC 3 NIC 4 X– 11 NIC 12 10 NIC 9 DOUT 5 6 7 8 15 16 14 13 AD7879/AD7889 PENIRQ/INT/DAV TOUCH SCREEN 0.1µF 0.1µF TO 10µF (OPTIONAL) VOLTAGE REGULATOR MAIN BATTERY INT SCLK MISO MOSI HOST CS Figure 46. Typical Application Circuit |
Nº de peça semelhante - AD7889 |
|
Descrição semelhante - AD7889 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |