AD8156 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD8156
Manufacturer

ADI
ChipWorker Part#

CW430798630
Description

6.25Gbps, 4 × 4, Digital Crosspoint Switch with EQ
Documentation

Datasheet

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Product Description

Product Details
The AD8156, a member of the Xstream line of products, is a high speed, fully differential, digital crosspoint switch. The part can function as a 4 × 4 crosspoint switch with double-latched memory, allowing simultaneous updates, or as a dual 2 × 2 with direct output control. The AD8156 has low power dissipation, typically 700 mW on 3.3 V with all outputs and input equalizers active. It operates at any data rate from dc to 6.25 Gbps per port.
Each input channel on the AD8156 has a programmable input equalizer to compensate for signal loss over a backplane.
The AD8156 high speed inputs are compatible with both ac-coupled and dc-coupled 3.3 V, 2.5 V, or 1.8 V CML, as well as 3.3 V LVPECL data levels. The control interface is LVTTL- and LVCMOS-compatible at 3.3 V. All input and output termination resistors are integrated for ease of layout and to minimize impedance mismatch. Input equalization and unused outputs can be individually disabled to minimize power dissipation.
The AD8156 is packaged in a 49-ball, 8 mm × 8 mm, BGA package with a 1 mm ball pitch. It operates over the industrial temperature range of −40°C to 85°C.
**Applications**
SONET/SDH
Gigabit Ethernet
XAUI
Fibre Channel
### Features and Benefits
4 × 4, fully differential, nonblocking array
Configurable for dual 2 × 2 operation
DC to 6.25 Gbps per channel, NRZ data rate
Programmable input equalization compensates for over 40” of FR-4 at 6.25 Gbps
Multicast and broadcast modes of operation
Programmable output swing
100 mV p-p to 1.6 V p-p differential
Power supply: 3.3 V (±10%)
Low power
No EQ: 400 mW typical
Maximum EQ: 700 mW typical
Inputs: ac-coupled or dc-coupled
Wide set of dc-coupled input standards
3.3 V/2.5 V/1.8 V CML or 3.3 V LVPECL
Control: LVTTL- or LVCMOS-compatible
Low additive jitter: 25 ps p-p typical

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