ADV3202: 300 MHz, 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

ADV3202 特点

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

ADV3202 功能框图

ADV3202 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADV3202-EVALZ	量产	评估板	-	工业
ADV3202ASWZ	量产	176 Ld LQFP(24x24 w_7.8 mm_heatsink)	176	工业