Product Summary

The DS90CR212MTD is a receiver which converts the LVDS data streams back into 21 bits of CMOS/TTL data. At a transmit clock frequency of 40 MHz, 21 bits of TTL data are transmitted at a rate of 280 Mbps per LVDS data channel. Using a 40 MHz clock, the data throughput is 840 Mbit/s(105 Mbyte/s). The multiplexing of the DS90CR212MTD provides a substantial cable reduction. Long distance parallel single-ended buses typically require a ground wire per active signal (and have very limited noise rejection capability). Thus, for a 21-bit wide data bus and one clock, up to 44 conductors are required. With the Channel Link chipset as few as 9 conductors (3 data pairs, 1 clock pair and a minimum of one ground) are needed. The DS90CR212MTD provides a 80% reduction in required cable width, providing a system cost savings, reduces connector physical size, and reduces shielding requirements due to the cables smaller form factor. The 21 CMOS/TTL inputs can support a variety of signal combinations. For example, 5 4-bit nibbles plus 1 control, or 2 9-bit (byte + parity) and 3 control.

Parametrics

DS90CR212MTD absolute maximum ratings: (1)Supply Voltage (VCC): -0.3V to +6V; (2)CMOS/TTL Input Voltage: -0.3V to (VCC + 0.3V); (3)CMOS/TTL Ouput Voltage: -0.3V to (VCC + 0.3V); (4)LVDS Receiver Input Voltage: -0.3V to (VCC + 0.3V); (5)LVDS Driver Output Voltage: -0.3V to (VCC + 0.3V); (6)LVDS Output Short Circuit Duration: continuous; (7)Junction Temperature: +15o℃; (8)Storage Temperature Range: -65℃ to +150℃; (9)Lead Temperature (Soldering, 4 sec.): +260℃; (10)Maximum Power Dissipation @ +25℃ MTD48 (TSSOP) Package: 1.89W; (11)Maximum Power Dissipation @ +25℃ Package Derating: 15mW/℃ above +25℃.

Features

DS90CR212MTD features: (1)Narrow bus reduces cable size and cost; (2)±1V Common mode range (ground shifting); (3)290 mV swing LVDS data transmission; (4)840 Mbit/s data throughput; (5)Low swing differential current mode drivers reduce EMI; (6)Rising edge data strobe; (7)Power down mode; (8)Offered in low profile 48-lead TSSOP package.

Diagrams

DS90CR212MTD block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS90CR212MTD
DS90CR212MTD


IC TX CHANNEL LINK 21BIT 48TSSOP

Data Sheet

Negotiable 
DS90CR212MTDX
DS90CR212MTDX


IC TX CHANNEL LINK 21BIT 48TSSOP

Data Sheet

Negotiable