AD8155
PRODUCTION6.5 Gbps Dual Buffer Mux/Demux
- Part Models
- 2
- 1ku List Price
- Starting From $22.42
Part Details
- Dual 2:1 mux/1:2 demux
- Optimized for dc to 6.5 Gbps NRZ data
- Per-lane P/N pair inversion for routing ease
- Programmable input equalization
- Compensates up to 40 inches of FR4
- Loss-of-signal detection
- Programmable output preemphasis up to 12 dB
- Programmable output levels with squelch and disable
- Accepts ac-coupled or dc-coupled differential CML inputs
- 50 Ω on-chip termination
- 1:2 demux supports unicast or bicast operation
- Port-level loopback
- Port or single lane switching
- 1.8 V to 3.3 V flexible core supply
- User-settable I/O supply from VCC to 1.2 V
- Low power, typically 2.0 W in basic configuration
- 64-lead LFCSP
- −40°C to +85°C operating temperature range
The AD8155 is an asynchronous, protocol-agnostic, dual-lane 2:1 switch with a total of six differential CML inputs and six differential CML outputs. The signal path supports NRZ signaling with data rates up to 6.5 Gbps per lane. Each lane offers programmable receive equalization, programmable output pre-emphasis, programmable output levels, and loss-of-signal detection.
The nonblocking switch-core of the AD8155 implements a 2:1 multiplexer and 1:2 demultiplexer per lane and supports independent lane switching through the two select pins, SEL[1:0]. Each port is a two-lane link. Every lane implements an asynchronous path supporting dc to 6.5 Gbps NRZ data, fully independent of other lanes. The AD8155 has low latency and very low lane-to-lane skew.
The main application of the AD8155 is to support redundancy on both the backplane and the line interface sides of a serial link. The demultiplexing path implements unicast and bicast capability, allowing the part to support either 1+1 or 1:1 redundancy.
The AD8155 is also suited for testing high speed serial links because of its ability to duplicate incoming data. In a port monitoring application, the AD8155 can maintain link connectivity with a pass-through connection from Port C to Port A while sending a duplicate copy of the data to test equipment on Port B.
The rich feature set of the AD8155 can be controlled either through external toggle pins or by setting on-chip control registers through the I2C® interface.
APPLICATIONS
- Low cost redundancy switch
- SONET OC48/SDH16 and lower data rates
- RXAUI, 4x Fibre Channel, Infiniband , and GbE over backplane
- OIF CEI 6.25 Gbps over backplane
- Serial data-level shift
- 2-/4-/6-lane equalizers or redrivers
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD8155ACPZ | 64-Lead LFCSP (9mm x 9mm x 0.75mm w/ EP) | ||
| AD8155ACPZ-R7 | 64-Lead LFCSP (9mm x 9mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea |
||
| AD8155ACPZ | PRODUCTION | |
| AD8155ACPZ-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
AD8155 Evaluation Board