The ADV3221/ADV3222 are 4:1 analog multiplexers with an 800 MHz -3 dB bandwidth and a 200 mV p-p input range. It features low power (75 mW) and low crosstalk (-85 dB @ 5 MHz and -58 dB @ 100 MHz). It is suitable for routing high-speed signals including video (NTSC, PAL, S, SECAM, YUV, RGB), compressed video (MPEG, wavelet), 3-level digital video (HDB3), data communications and telecommunications.
The ADV3221 and ADV3222 are high‑speed, buffered 4:1 analog multiplexers designed for video, compressed video, data communications and telecom applications. They provide a −3 dB bandwidth greater than 800 MHz, channel switch times under 20 ns, and low crosstalk (‑58 dB at 100 MHz) with excellent isolation (‑67 dB at 100 MHz). The devices are offered in a 16‑lead SOIC package and operate from ±5 V supplies.
Typical applications include routing high‑speed video signals (NTSC, PAL, YUV, RGB), compressed video (MPEG), and RF signals. The output can be placed in a high‑impedance state for cascading multiple devices, and the selectable gain (+1 for ADV3221, +2 for ADV3222) simplifies system design. Detailed pin descriptions, timing diagrams, and layout recommendations are provided to aid designers.
| -3 dB Bandwidth | 800 MHz (200 mV p‑p) |
|---|---|
| Gain | +1 (ADV3221), +2 (ADV3222) |
| Isolation (100 MHz) | ‑67 dB |
| Slew Rate | 2400 V/µs typical |
The devices have a −3 dB bandwidth of 800 MHz for a 200 mV peak‑to‑peak input signal.
ADV3221 provides a gain of +1, while ADV3222 provides a gain of +2.