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AD8112

Analog Devices
Part Number AD8112
Manufacturer Analog Devices
Description fully buffered crosspoint switch matrix that operates
Published Mar 15, 2007
Detailed Description www.DataSheet4U.com Audio/Video, 60 MHz, 16 × 8, Gain of +2 Crosspoint Switch AD8112 FEATURES Low cost, 16 × 8, high sp...
Datasheet PDF File AD8112 PDF File

AD8112
AD8112

Overview
www.
DataSheet4U.
com Audio/Video, 60 MHz, 16 × 8, Gain of +2 Crosspoint Switch AD8112 FEATURES Low cost, 16 × 8, high speed, nonblocking switch array Pin-compatible 16 × 16 version available (AD8113) Serial or parallel programming of switch array Serial data out allows daisy chaining control of multiple 16 × 8 arrays to create larger switch arrays Output disable allows connection of multiple devices without loading the output bus Complete solution Buffered inputs 8 output amplifiers Operates on ±5 V or ±12 V supplies Low supply current of 54 mA Excellent audio performance VS = ±12 V ±10 V output swing 0.
002% THD at 20 kHz maximum 20 V p-p (RL = 600 Ω) Excellent video performance VS = ±5 V 0.
1 dB gain flatness of 10 MHz 0.
1% differential gain error (RL = 1 kΩ) 0.
1° differential phase error (RL = 1 kΩ) Excellent ac performance −3 dB bandwidth 60 MHz Low all-hostile crosstalk of −83 dB at 20 kHz Reset pin allows disabling of all outputs (connected to a capacitor to ground provides power-on reset capability) 100-lead LQFP (14 mm × 14 mm) FUNCTIONAL BLOCK DIAGRAM SER/PAR D0 D1 D2 D3 D4 A0 A1 A2 80-BIT SHIFT REGISTER WITH 5-BIT PARALLEL LOADING 40 PARALLEL LATCH 40 DECODE 8 × 5:16 DECODERS 40 CLK DATA IN UPDATE CE RESET DATA OUT 8 AD8112 128 OUTPUT BUFFER G = +2 ENABLE/DISABLE SET INDIVIDUAL OR RESET ALL OUTPUTS TO OFF 8 OUTPUTS 06523-001 NO CONNECT 16 INPUTS SWITCH MATRIX APPLICATIONS CCTV surveillance/DVR Analog/digital audio routers Video routers (NTSC, PAL, S-Video, SECAM) Multimedia systems Video conferencing Figure 1.
GENERAL DESCRIPTION The AD8112 is a low cost, fully buffered crosspoint switch matrix that operates on ±12 V for audio applications and ±5 V for video applications.
It offers a −3 dB signal bandwidth greater than 60 MHz and channel switch times of less than 60 ns with 0.
1% settling for use in both analog and digital audio.
The AD8112 operated at 20 kHz has a crosstalk performance of −83 dB and isolation of 90 dB.
In addition, ground/pow...


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