300 MH, 32 × 16 Buffered Analog Crosspoint Switch

The ADV3202/ADV3203 are 32 × 16 analog crosspoint switch matrices. They feature a selectable sync-tip clamp input for ac-coupled applications and a 2:1 on-screen display (OSD) insertion mux. With −48 dB of crosstalk and −80 dB isolation at 5 MHz, the ADV3202/ADV3203 are useful in many high density routing applications. The 0.1 dB flatness out to 60 MHz makes the ADV3202/ADV3203 ideal for both composite and component video switching.

The 16 independent output buffers of the ADV3202/ADV3203 can be placed into a high impedance state for paralleling crosspoint outputs so that off-channels present minimal loading to an output bus if building a larger array. The ADV3202 has a gain of +1 while the ADV3203 has a gain of +2 for ease of use in back-terminated load applications. A single +5 V supply, dual ±2.5 V supplies, or dual ±3.3 V supplies can be used while consuming only 195 mA of idle current with all outputs enabled. The channel switching is performed via a double buffered, serial digital control, that can accommodate daisy chaining of several devices.

The ADV3202/ADV3203 are packaged in a 176-lead exposed pad LQFP package (24 mm × 24 mm) and are available over the extended industrial temperature range of −40°C to +85°C.

Applications

* CCTV surveillance

* Routing of high speed signals

Composite video (NTSC, PAL, S, SECAM)

RGB and component video routing

Compressed video (MPEG, wavelet)

* Video conferencing

Data Sheet, Rev 0, 11/2008

* Large, 32 × 16, nonblocking switch array

* G = +1 (ADV3202) or G = +2 (ADV3203) operation

* 32 × 32 pin compatible version available (ADV3200/ADV3201)

* Single +5 V, dual ±2.5 V, or dual ±3.3 V supply (G = +2)

* Serial programming of switch array

* 2:1 OSD insertion mux per output

* Input sync-tip clamp

* High impedance output disable allows connection of multiple devices with minimal output bus load

* Excellent video performance

60 MHz 0.1 dB gain flatness

0.1% differential gain error (RL = 150 Ω)

0.1° differential phase error (RL = 150 Ω)

* Excellent ac performance

Bandwidth: >300 MHz

Slew rate: > 400 V/µs

* See data sheet for additional Features