Difference between revisions of "TvNow"
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U1 Sharp [[LH79524]] | U1 Sharp [[LH79524]] | ||
− | ARM720T Processor | + | [[ARM720T]] Processor |
U2 Conexant CX25836-3A | U2 Conexant CX25836-3A | ||
Located below a shield. TQFP-64 | Located below a shield. TQFP-64 | ||
− | Single chip video decoder. Datasheet and | + | Single chip video decoder. {{pdf|DSH-200685-001.pdf|Datasheet}} and {{pdf|PBR-200627-001.pdf|Product Brief}}. |
IO are LVTTL. IOL=4mA drive. | IO are LVTTL. IOL=4mA drive. | ||
− | U4 Unknown | + | U4 Unknown [[Chip On Board]](CoB) package |
U5 Green unmarked 0805 package | U5 Green unmarked 0805 package | ||
Located on USB board | Located on USB board | ||
U6 Green unmarked 0805 package | U6 Green unmarked 0805 package | ||
Located on USB board | Located on USB board | ||
− | U7 Unknown | + | U7 Unknown [[Chip On Board]](CoB) package |
U8 TI LM324 | U8 TI LM324 | ||
U9 Hynix HY57V643220DT-6 | U9 Hynix HY57V643220DT-6 | ||
Long, leaded TSOP II 86 pin package | Long, leaded TSOP II 86 pin package | ||
SDRAM, VDD=3.3 & VDDQ=3.3V, 64Mbit, x32, 4banks, LVTTL | SDRAM, VDD=3.3 & VDDQ=3.3V, 64Mbit, x32, 4banks, LVTTL | ||
− | Decoded per 2004SFC-DRAM.pdf. 6ns (166MHz), 2Mx32 | + | Decoded per the {{pdf|2004SFC-DRAM.pdf|datasheet}}. 6ns (166MHz), 2Mx32 |
U11 Hynix HY27UA081G1M | U11 Hynix HY27UA081G1M | ||
Wide, leaded package | Wide, leaded package | ||
NAND flash, 1Gb | NAND flash, 1Gb | ||
U12 | U12 | ||
− | U14 Unknown | + | U14 Unknown [[Chip On Board]](CoB) package |
Boards | Boards | ||
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[[Image:tvnow-internal.jpg]] | [[Image:tvnow-internal.jpg]] | ||
+ | |||
+ | [[Category:Hardware Hacking]] |
Latest revision as of 12:33, 10 February 2008
U1 Sharp LH79524
ARM720T Processor
U2 Conexant CX25836-3A
Located below a shield. TQFP-64 Single chip video decoder. https://elinux.org/images//8/83/Pdf.gif Datasheet https://elinux.org/images/d/da/Info_circle.png and https://elinux.org/images//8/83/Pdf.gif Product Brief https://elinux.org/images/d/da/Info_circle.png. IO are LVTTL. IOL=4mA drive.
U4 Unknown Chip On Board(CoB) package U5 Green unmarked 0805 package
Located on USB board
U6 Green unmarked 0805 package
Located on USB board
U7 Unknown Chip On Board(CoB) package U8 TI LM324 U9 Hynix HY57V643220DT-6
Long, leaded TSOP II 86 pin package SDRAM, VDD=3.3 & VDDQ=3.3V, 64Mbit, x32, 4banks, LVTTL Decoded per the https://elinux.org/images//8/83/Pdf.gif datasheet https://elinux.org/images/d/da/Info_circle.png. 6ns (166MHz), 2Mx32
U11 Hynix HY27UA081G1M
Wide, leaded package NAND flash, 1Gb
U12 U14 Unknown Chip On Board(CoB) package
Boards The entire system is composed of 4 boards. Most electrolytics are through hole. However, there are a few scattered tantalums.
* There is a main board with the CPU, memory, and flash, and a SD socket. There is a cylinder shaped crystal (probally 32KHz, watch xtal) and a 28.6363Mhz xtal. * There is a board that has the AV inputs on one side. * On the otherside, there is a board with a mini USB connector. * A 4th board sits on top of 2 sets of fine (0.05 or finer) headers.
discusion: http://forums.parallax.com/forums/default.aspx?f=15&m=158549
vendor: http://www.hasbro.com/tiger/default.cfm?page=browse&product_id=18617