DS125BR820NJYT Interface Signal Buffers Repeaters Low-Pwr 12Gbps 8Ch Linear Repeater
DS125BR820NJYT
,DS125BR820NJYT Interface IC
,8Ch Linear Repeater IC
DS125BR820NJYT Interface Signal Buffers Repeaters Low-Pwr 12Gbps 8Ch Linear
Repeater
| Texas Instruments | |
| Product Category: | Interface - Signal Buffers, Repeaters |
| RoHS: | Details |
| Repeaters | |
| CML | |
| 80 ps | |
| 520 kHz | |
| 2.5 V, 3.3 V | |
| 2.5 V, 3.3 V | |
| - 40 C | |
| + 85 C | |
| SMD/SMT | |
| WQFN-54 | |
| Reel | |
| Cut Tape | |
| MouseReel | |
| Application: | Front Port, Backplane, Peripheral I/O |
| Brand: | Texas Instruments |
| Moisture Sensitive: | Yes |
| Operating Supply Current: | 220 mA |
| Operating Supply Voltage: | 2.5 V, 3.3 V |
| Product Type: | Signal Buffers, Repeaters |
| Series: | DS125BR820 |
| Subcategory: | Interface ICs |
| Type: | SMBus |
| Unit Weight: | 0.004783 oz |
Description
The DS125BR820 is an extremely low-power high-performance repeater/redriver designed to support
eight channels carrying high speed interface up to12.5 Gbps, such as 40G-CR4, 40G-KR4, SAS/SATA,
anc PCle. The receiver's continuous time linear equalizer (CTLE) provides high frequency boost that
is programmable from 3 to 10 dB at 6 GHz (12 Gbps) followed by a linear output driver. The CTLE receiver
is capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced
by interconnect medium such as board traces or twin axial-copper cables. The programmable equalization
maximizes the flexibility of physical placement within the interconnect channel and improves overall
channel performance. When operating in 40G-CR4/KR4, SAS/SATA, and PCle applications,the
DS125BR820 preserves transmit signal characteristics, thereby allowing the host controller and the end
point to negotiate transmit equalizer coefficients. 1 "his transparency in the link training protocol facilitates
system level interoperability and minimizes latency.
The programmable settings can be applied easily via pin control, sofware (SMBus or l2C), or direct loading
from an external EEPROM. In EEPROM mode, the configuration information is automatically loaded or power
up, there by eliminating the need for an exteral microprocessor or software driver.
Features
-Low 70 mW/Channel (Typ) Power Consumption, with Option to Power Down Unused Channels
-Seamless Link Training Support
-Enables Host ASIC to Meet Front-Port Eye Mask Requirements over Longer Reach
-Advanced Configurable Signal Conditioning l/0
--ReceiveCTLEupto10dBat6GHz Linear Output Driver
--Variable Output Voltage Range up to 1200mVp-p
-Programmable via Pin Selection, EEPROM, or SMBus Interface
-Single Supply Voltage: 2.5V or 3.3 V
--40°C to 85°C Operating Temperature Range
-Flow-Thru Layout in 10 mm x 5.5 mm 54-Pin Leadless WQFN Package
Applications
--Front-Port 40G-CR4/SR4/L R4 Link Extension
--Backplane 40G-KR4 Link Extension
--SAS/SATA/PCle Link Extension
--Other Proprietary High Speed Interfaces up to 12.5 Gbps
