A 32 x 16 video crosspoint switch from Intersil Corp. integrates a DC-restore clamp on each video input to eliminate blacklevel fluctuation, providing correctly balanced composite video with fewer external components. The ISL59534's integrated DC-restore clamp biases composite (NTSC and PAL) video by automatically adjusting the DC level of the most negative portion of the video to the reference voltage. This feature can be disabled by the user through an SPI/QSPITM compatible, three-wire serial interface for S-video and component video applications.
The device operates from a single +5V supply, and it can accommodate voltages from 0 to 3.5V at the inputs and 0 to 4V at the outputs. It also has an input clamp with external group reference that can be used for ACcoupled applications.
Any of the ISL59534's outputs can be switched to any of the 32 input video signal sources. The device also features a broadcast mode—with 90MHz of bandwidth—in which any single input can be simultaneously sent to all 16 outputs. Outputs can be individually programmed to high impedance and a gain of +1 or +2 for flexibility.
The switch features a -3dB signal bandwidth of 320MHz. The device has a differential gain and differential phase of 0.025 percent and 0.222° and 0.1dB flatness out to 50MHz to support increasingly higher video resolutions and to provide desirable isolation for less leakage between video channels. The ISL59534 in a 356-lead BGA package is priced at $65 in 1,000-unit quantities.
Analog Devices' 32 x 32 analog crosspoint switches—AD8117/ AD8118—achieve bandwidth of >500MHz to route quantum extended graphics array (QXGA) video signals without degrading image quality. QXGA (2,048 x 1,536 pixels) enables very fine detail video images in LCD monitors.
The devices use what is said to be the industry's first fully differential analog crosspoint core architecture. This design enables any combination of differential or single-ended inputs and outputs. Desirable image fidelity is accomplished with bandwidth of 500MHz, slew rate of 1,800V/ µsec, gain flatness of 0.1dB out to 100MHz, and crosstalk of -40dB at 500MHz.
The AD8117 and AD8118 consume 2.5mW per point; operate with a single +5V supply or dual ±2.5V supplies to eliminate the need for external heat sinks; and consume 200mA of standby current and 500mA quiescent.
The analog crosspoint switches can be easily programmed and reprogrammed. Channel switching is performed via a double-buffered, serial digital control—which can accommodate daisy chaining of several devices—or through a parallel control that allows updating of individual outputs without reprogramming the entire array. Both switches in 304-ball BGA packages are priced at $295 in 100-piece quantities.
 Product: ISL59534 Video Crosspoint Switch
Key Highlights:
• 32x16 non-blocking switch with buffered inputs and outputs
• 300MHz typical bandwidth
• 0.025%/0.05° dG/dP
• Output gain switchable to +1 or +2 for each channel
 Product:AD8117/AD8118 Video Crosspoint Switch
Key Highlights:
• Large, 32 x 32 high-speed, nonblocking switch array
• G=1 or G=2 operation • Serial +5V supply or dual ±2.5V supply
• Serial or parallel programming of switch array
• Desirable video performance
• Desirable AC performance
• High impedance output disable allows connection of multiple devices with minimal output bus load
• Low power of 2.5W
This 1mm centerline card edge connector meets the point-to-point full duplex I/O bus standard for PCI Express architecture. The connector finds use in graphics cards in serial bus applications, I/O client cards for applications requiring higher speeds than PCI bus, computers, and telecom switches/routers. It is available in vertical, straddle mount and right angle configurations for all standard PCI Express slot sizes.
| Type/Model | SiP4280A Slew Rate Controlled Load Switch | | Characteristics | • 1.5 to 5.5V input voltage
• Slew-rate-limited turn-on times: SiP4280A-1 = 1ms (typ.) SiP4280A-3 = 100µs (typ.)
• Fast shutdown load discharge option
• Low RDS(ON), typ. 80mW (5V)
• 25nA (typ.) quiescent supply current | | Features | • Input logic levels are TTL and 2.5 to 5V compatible
• Designers of handhelds can use smaller power-supply capacitors to handle the current sags and surges encountered in the load switching application
• 4kV ESD rating
• Six-pin SOT23 packaging | | Applications | Cellphones, digital still cameras, PDAs, hot swap supplies, and notebook computers |
 This generation of alternating current switches (ACS) controls the numerous AC loads employed by appliance applications. The 600Vrated ACS switches use the company’s application specific devices (ASD) process technology which enables the integration of both overvoltage protection circuitry and RC-snubber external components.
| Type/Model | SACS108-6S (ACS) Transient Voltage Protected AC Switch | | Characteristics | • IT(RMS) = 0.8A
• VDRM/VRRM = 600V
• IGT = 10A
• An overvoltage crowbar absorbs overvoltage energy
• Gate level shifter driver 2.5Gbps to 12.5Gbps range per-port configurable use smaller power-supply separates the digital controller from the main switch | | Features | • Enables equipment to meet IEC6400-4-5 | | Applications | Drives, pumps, fans, valves, relays, dispensers, door locks and micromotors in appliances |
 A single HybriCoreTM-based switch device switches up to 360Gbps of non-blocking, full duplex traffic. Multiple switch devices scale the design linearly to support multiple terabit system configurations that have not been possible with legacy switching silicon. The fabric managers (FMs) support 10, 20 or 40Gbps line card configurations and can be combined for higher density implementations.
| Type/Model | HybriCore EN6100 Crossbar Switch/EN6200 Fabric Manager (FM) | | Characteristics | • EN6100 nonblocking single-stage crossbar switch has 36 full duplex high-speed serial interfaces
• EN6200 FM manages the flow of packets to/from the line card subsystem and one or more switch devices, using full duplex high-speed serial current interfaces | | Features | • EN6100 crossbar switch incorporates 36 serial links capable of operating in the 2.5 to 12.5Gbps range
• Up to 14 switches can be configured in parallel to develop a chassis that can support in excess of 2Tbps | | Applications | Next-gen metro access switches
and routers, multi-service provisioning platforms (MSPPs) |
 FocalPoint's FM2103 Ethernet switches are targeted at multiport optical line termination (OLT) cards for GPON equipment. The FM2103 is configured for four-port OLT cards with four 2.5Gb Ethernet ports for access connections and two 10Gb Ethernet XAUI ports for backbone links.
| Type/Model | FocalPoint FM2103 Ethernet Switch | | Characteristics | • Fully integrated single-chip wire-speed 10G/2.5G Ethernet switch
• Layer-2 switching capabilities include support for flexible headers
• 200ns latency, ball to ball | | Features | • Two XAUI (CX4) interfaces
• Four SGMII interfaces
• 802.3x PAUSE flow control is per-port configurable
• Sophisticated queue management
• 802.1Q VLAN support
• Programmable address look-up modes | | Applications | GPON and ATCA carrier cards |
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