ADV3228 Datasheet, PDF (1/24 Pages) Analog Devices – 750 MHz, 8 x 8 Analog Crosspoint Switch

Data Sheet
750 MHz, 8 × 8 Analog Crosspoint Switch
ADV3228/ADV3229
FEATURES
8 × 8 high speed, nonblocking switch array
Pinout and functionally equivalent to the AD8108/AD8109
Drop-in compatible with ADV3224/ADV3225 16 × 8 array
Complete solution
Buffered inputs
Programmable high impedance outputs
8 output amplifiers, G = +1 (ADV3228), G = +2 (ADV3229)
Drives 150 Ω loads
Operates on ±5 V supplies
Low power: 0.5 W
Excellent ac performance
−3 dB bandwidth
200 mV p-p: 1200 MHz (ADV3228), 900 MHz (ADV3229)
2 V p-p: 750 MHz (ADV3228), 850 MHz (ADV3229)
0.5 dB flatness (2 V p-p): 250 MHz (ADV3228), 235 MHz
(ADV3229)
Slew rate: 2500 V/µs
Serial or parallel programming of switch array
72-lead LFCSP (10 mm × 10 mm)
CLK
DATAIN
UPDATE
CE
RESET
FUNCTIONAL BLOCK DIAGRAM
SER/PAR D0 D1 D2 D3
A0
A1
A2
40-BIT SHIFT REGISTER
WITH 4-BIT
PARALLEL LOADING
DATAOUT
32
8 ^(RESERVED)
PARALLEL LATCH
32
DECODE
8 × 4:8 DECODERS
SET INDIVIDUAL
OR RESET ALL
OUTPUTS TO OFF
8
ADV3228/
ADV3229
OUTPUT
64
BUFFER
G = +1,
G = +2
SWITCH
APPLICATIONS
Routing of high speed signals including
Video (NTSC, PAL, S, SECAM, YUV, RGB)
Compressed video (MPEG, wavelet)
3-level digital video (HDB3)
Data communications
Telecommunications
Figure 1.
GENERAL DESCRIPTION
The ADV3228/ADV3229 are high speed 8 × 8 analog crosspoint
switch matrices. They offer a −3 dB large signal bandwidth of
750 MHz (ADV3228) and a slew rate of 2500 V/µs.
The ADV3228/ADV3229 include eight independent output buffers
that can be placed into a high impedance state for paralleling
crosspoint outputs to prevent off channels from loading the output
bus. The ADV3228 has a gain of +1, the ADV3229 has a gain of
+2, and they both operate on voltage supplies of ±5 V. Channel
switching is performed via a serial digital control that can
accommodate daisy chaining of several devices or via a parallel
control to allow updating of an individual output without
reprogramming the entire array.
The ADV3228/ADV3229 are available in the 72-lead LFCSP
package over the extended industrial temperature range of
−40°C to +85°C.
Rev. A
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