Hardware » History » Version 4
laforge, 05/02/2017 09:05 PM
| 1 | 1 | laforge | h1. Hardware |
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| 3 | 3 | laforge | h2. Physical Setup / Board Stacking |
| 4 | 2 | laforge | |
| 5 | 1 | laforge | The hardware consists of two circuit boards: |
| 6 | |||
| 7 | * Top board: AC/DC power supply and Ethernet switch |
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| 8 | * Bottom board: Actual Femtocell mainboard |
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| 9 | |||
| 10 | The two boards are sandwiched together by the following connections: |
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| 11 | * 6-pin fine-pitch connector (most likely for DC power) |
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| 12 | * flexible printed circuit cable (most likely for Ethernet MII/RMII) |
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| 13 | * two large sheet metal parts for ground and/or thermal connection |
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| 14 | |||
| 15 | It is thus not very straight forward to operate the opened device in a safe way (i.e. without live AC line voltage present). |
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| 16 | |||
| 17 | We will be working on a way to operate it with injected safe low DC voltage, but that is still TBD. |
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| 18 | 4 | laforge | |
| 19 | h2. Major Components |
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| 20 | |||
| 21 | h3. Femtocell SoC |
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| 22 | |||
| 23 | Broadcomm BCM61610KFB1G (formerly Percello) |
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| 24 | * no information found anywhere |
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| 25 | |||
| 26 | h3. NAND Flash |
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| 27 | |||
| 28 | Hynix H27U1G8F2BTR |
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| 29 | * 1Gbit (128MByte) NAND Flash, x8 data bus, 3.3V, 2k page size, 128k erase block, 48pin TSOP1 |
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| 30 | * http://natisbad.org/NAS/refs/Hynix_NAND_128Mo_H27U1G8F2BT.pdf |
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| 31 | |||
| 32 | h2. RF Transceiver |
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| 33 | |||
| 34 | Maxim MAX2550 |
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| 35 | * Band I, V, and VIII WCDMA Femtocell Transceiver with GSM Monitoring |
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| 36 | * https://www.maximintegrated.com/en/products/comms/wireless-rf/MAX2550.html |
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| 37 | * https://datasheets.maximintegrated.com/en/ds/MAX2550.pdf |
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| 38 | * https://www.maximintegrated.com/en/app-notes/index.mvp/id/5364 |
