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toh:tp-link:tl-wr703n:pcb [2012/09/12 09:23]
cave
toh:tp-link:tl-wr703n:pcb [2014/07/02 14:03] (current)
charly86 Added Image with GPIO/Power placement
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{{http://img833.imageshack.us/img833/3559/tlwr703ntop.jpg?600}} {{http://img833.imageshack.us/img833/3559/tlwr703ntop.jpg?600}}
 +
 +===== PCB Top Placement =====
 +
 +{{:media:toh:tp-link:tl-wr703n:tp-link_wr703n_top-pcb-gpio.jpg?600|TP-Link TL-WR703N with GPIO and Power}}
==== RESET Switch ==== ==== RESET Switch ====
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**C107** / **C108** are used for decoupling of the 5V input on the **USB1** MicroUSB connector prior to the **U5** switching regulator. **C107** / **C108** are used for decoupling of the 5V input on the **USB1** MicroUSB connector prior to the **U5** switching regulator.
-**U5** is the main unidentified step-down 3.3 V switching voltage regulator (marking: BWMM7AG), along with the **L14** ferrite-core self, **C112** input filter ceramic capacitor, **C109** output filter ceramic capacitor and feedback circuit **R99** / **R100** / **C106**.+**U5** is an [[http://www.ame.com.tw/Product/Datasheet/AME5258.pdf|AME5258]] step-down 3.3 V switching voltage regulator (marking: BWMM7AG), along with the **L14** ferrite-core self, **C112** input filter ceramic capacitor, **C109** output filter ceramic capacitor and feedback circuit **R99** / **R100** / **C106**.
2 test points TPGND and T3V3 are available, and 2 capacitors **C110** (not mouted)/**C111** are used to connect the GND to the RF antenna GND. 2 test points TPGND and T3V3 are available, and 2 capacitors **C110** (not mouted)/**C111** are used to connect the GND to the RF antenna GND.
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==== SPI Flash ==== ==== SPI Flash ====
-**U3** is a Spansion [[http://www.spansion.com/Support/Datasheets/S25FL032P_00.pdf|S25FL032P]] 32Mbit 104-MHz SPI Flash memory in SO8 package. This chip provides 4MB of Flash memory for permanent storage.+**U3** is a Spansion [[http://www.spansion.com/Support/Datasheets/S25FL032P_00.pdf|S25FL032P]] 32Mbit 104-MHz SPI Flash memory in an SO8 package (208 mil wide). This chip provides 4MB of Flash memory for permanent storage.
This chip can be upgraded to a 64 Mbit pin-to-pin compatible chip (like the Eon EN25Q64 chip) to provide 8MB of Flash memory. This chip can be upgraded to a 64 Mbit pin-to-pin compatible chip (like the Eon EN25Q64 chip) to provide 8MB of Flash memory.
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===== Tags ===== ===== Tags =====
---- ----
-{{tag>FastEthernet 1Port Serial integrated 802.11bgn 1Radio AR9331 ath9k 1Ant 32RAM 4Flash MIPS MIPS32 24k AP121}}+{{tag>FastEthernet 1NIC 1WNIC no_switch Serial integrated 802.11bgn AR9331 ath9k 1Ant 32RAM 4Flash MIPS MIPS32 24k AP121}}

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toh/tp-link/tl-wr703n/pcb.1347434588.txt.bz2 · Last modified: 2012/09/12 09:23 by cave