60 MHz, G = +2, 16 × 16

Buffered Analog Crosspoint Switch

Data Sheet

ADV3205

Rev. 0

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FEATURES

16 × 16 high speed nonblocking switch array

Serial or parallel programming of switch array

Serial data out allows daisy-chaining control of multiple

16 × 16 devices to create larger switch arrays

Complete solution

Buffered inputs

16 output amplifiers

Operates on ±5 V supplies

Low supply current of 50 mA

−3 dB bandwidth: 60 MHz

0.1 dB gain flatness: 10 MHz

Low all hostile crosstalk: −67 dB at 5 MHz

Output disable allows connection of multiple devices

without loading the output bus

RESET pin allows disabling of all outputs

Power-on reset capability with capacitor to ground

100-lead LQFP (14 mm × 14 mm)

APPLICATIONS

CCTV surveillance

Video routers (NTSC, PAL, S-Video, SECAM)

Video conferencing

FUNCTIONAL BLOCK DIAGRAM

ADV3205

OUTPUT

BUFFER

G = +2

80

80

256

80-BIT SHIFT REGISTER

WITH 5-BIT

PARALLEL LOADING

PARALLEL LATCH

DECODE

16 × 5:16 DECODERS

16

CLK

DATA IN

UPDATE

CE

RESET

16 INPUTS

A0

DATA

OUT

16

OUTPUTS

SET

INDIVIDUAL

OR RESET

ALL OUTPUTS

TO “OFF”

A1

A2

SER/PAR D0 D1 D2 D3 D4

A3

SWITCH

MATRIX

Figure 1.

GENERAL DESCRIPTION

The ADV3205 is a fully buffered crosspoint switch matrix that

operates on ±5 V, making it ideal for video applications. It offers

a −3 dB signal bandwidth of 60 MHz and channel switch times of

less than 60 ns with 0.1% settling. The ADV3205 has excellent

crosstalk performance, and ground/power pins surround all inputs

and outputs to provide extra shielding required for the most

demanding applications. The differential gain and differential

phase of better than 0.1% and 0.1°, respectively, along with 0.1 dB

flatness out to 10 MHz, make the ADV3205 an excellent choice

for many video applications.

The ADV3205 includes 16 independent output buffers that can

be placed into a disabled state for paralleling crosspoint outputs.

The ADV3205 has a gain of +2 and operates on voltage supplies

of ±5 V while consuming only 34 mA of current. Channel

switching is performed via a serial digital control (which can

accommodate daisy-chaining of several devices) or via a parallel

control, allowing updating of an individual output without

reprogramming the entire array.

The ADV3205 is packaged in a 100-lead LQFP and is available

over the commercial temperature range of 0°C to 70°C.