Difference between revisions of "TvNow"
Line 6: | Line 6: | ||
U2 Conexant CX25836-3A | U2 Conexant CX25836-3A | ||
Located below a shield. TQFP-64 | Located below a shield. TQFP-64 | ||
− | Single chip video decoder. | + | Single chip video decoder. [[Media:DSH-200685-001.pdf]] and [[Media:PBR-200627-001.pdf]] brief. |
IO are LVTTL. IOL=4mA drive. | IO are LVTTL. IOL=4mA drive. | ||
U4 Unknown [[Chip On Board]](CoB) package | U4 Unknown [[Chip On Board]](CoB) package | ||
Line 18: | Line 18: | ||
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 [[Media:2004SFC-DRAM.pdf]]. 6ns (166MHz), 2Mx32 |
U11 Hynix HY27UA081G1M | U11 Hynix HY27UA081G1M | ||
Wide, leaded package | Wide, leaded package |
Revision as of 11:07, 31 May 2007
U1 Sharp LH79524
ARM720T Processor
U2 Conexant CX25836-3A
Located below a shield. TQFP-64 Single chip video decoder. Media:DSH-200685-001.pdf and Media:PBR-200627-001.pdf brief. 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 Media:2004SFC-DRAM.pdf. 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