Hardware » History » Version 9
laforge, 05/02/2017 09:35 PM
1 | 1 | laforge | h1. Hardware |
---|---|---|---|
2 | |||
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 |
||
8 | * Bottom board: Actual Femtocell mainboard |
||
9 | |||
10 | The two boards are sandwiched together by the following connections: |
||
11 | * 6-pin fine-pitch connector (most likely for DC power) |
||
12 | * flexible printed circuit cable (most likely for Ethernet MII/RMII) |
||
13 | * two large sheet metal parts for ground and/or thermal connection |
||
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). |
||
16 | |||
17 | We will be working on a way to operate it with injected safe low DC voltage, but that is still TBD. |
||
18 | 4 | laforge | |
19 | h2. Major Components |
||
20 | |||
21 | 8 | laforge | h3. Femtocell SoC (U3) |
22 | 4 | laforge | |
23 | Broadcomm BCM61610KFB1G (formerly Percello) |
||
24 | * no information found anywhere |
||
25 | 9 | laforge | * probably derivative of PRC6100 |
26 | ** http://www.node-h.com/en/news/article/Node-H_3GPP_Iu-h_Femtocell_Software_is_Standards_Compliant.php |
||
27 | ** https://www.s3group.com/semiconductor-solutions/s3-percello-collaborate-produce-latest-femtocell-baseband-processor/ |
||
28 | * probably derivative of PRC6000 |
||
29 | ** https://www.bdti.com/InsideDSP/2008/10/15/Percello |
||
30 | * contains MIPS24Kc core |
||
31 | 4 | laforge | |
32 | 8 | laforge | h3. NAND Flash (U40) |
33 | 4 | laforge | |
34 | Hynix H27U1G8F2BTR |
||
35 | * 1Gbit (128MByte) NAND Flash, x8 data bus, 3.3V, 2k page size, 128k erase block, 48pin TSOP1 |
||
36 | * http://natisbad.org/NAS/refs/Hynix_NAND_128Mo_H27U1G8F2BT.pdf |
||
37 | |||
38 | 5 | laforge | h3. RF Transceiver |
39 | 4 | laforge | |
40 | Maxim MAX2550 |
||
41 | * Band I, V, and VIII WCDMA Femtocell Transceiver with GSM Monitoring |
||
42 | * https://www.maximintegrated.com/en/products/comms/wireless-rf/MAX2550.html |
||
43 | * https://datasheets.maximintegrated.com/en/ds/MAX2550.pdf |
||
44 | 1 | laforge | * https://www.maximintegrated.com/en/app-notes/index.mvp/id/5364 |
45 | 5 | laforge | |
46 | h3. Ethernet Switch |
||
47 | |||
48 | 7 | laforge | Atheros AR8236-AL1A |
49 | * 6-port Fast Ethernet Switch |
||
50 | 1 | laforge | * https://wikidevi.com/files/Atheros/specsheets/AR8326.pdf |
51 | * http://jhongtech.com/DOWN/ATHEROS--AR8236.pdf |
||
52 | 8 | laforge | |
53 | h3. AC/DC switching power supply controller |
||
54 | |||
55 | * https://www.power.com/sites/default/files/product-docs/linkcv_family_datasheet.pdf |
||
56 | 7 | laforge | |
57 | 5 | laforge | h2. Connectors |
58 | |||
59 | h3. Mainboard J2 |
||
60 | |||
61 | * 12pos 2x6 1.27mm pitch header |
||
62 | * unpopulated |
||
63 | 1 | laforge | * likely JTAG and/or console |
64 | 6 | laforge | |
65 | h3. Mainboard J3 |
||
66 | |||
67 | * 30pos 0.5mm pitch FPC |
||
68 | * connects to PSU Board CON1 |
||
69 | * likely LED + Ethernet |
||
70 | 5 | laforge | |
71 | h3. Mainboard J4 |
||
72 | |||
73 | * 3pos 2.54mm pitch hader, center pos missing |
||
74 | * used to supply 230V AC from mainboard to PSU board |
||
75 | * connects to PSU Board J4 |
||
76 | |||
77 | h3. Mainboard J5 |
||
78 | |||
79 | * 8pos 2x4 1.27mm pitch SMD header |
||
80 | * likely DC power |
||
81 | * connects to PSU-Board J |