HDMP-3268 Datasheet, PDF (2/18 Pages) Agilent(Hewlett-Packard) – 3.2 Gbit/sec 68x68 Crosspoint Switch

Block Description
Figure 1 gives an overall block
diagram for the HDMP-3268. The
operation of HDMP-3268 is
discussed below.
DIN[0:67]+
DIN[0:67]–
WSTB
HIGH
SPEED
INPUT
SWITCH
MATRIX
HIGH
SPEED
OUTPUT
ON/OFF,
ON/OFF,
EQUALIZATION AMPLITUDE
CONTROL REGISTERS
INPUT CHANNEL
ADDRESS0 ADDRESS1
REGISTERS REGISTERS
CONTROL LOGIC
DATA MUX
DOUT[0:67]+
DOUT[0:67]–
USE
SET
CNTL
CH[6:0] TERM CS RW
Figure 1. Block diagram for the HDMP-3268.
DATA [6:0]
HS_OUT
50 Ω
50 Ω
V_CC_DOUT
V_CC
DOUT+
DOUT–
Zo = 50 Ω
Zo = 50 Ω
DIN+
DIN–
*0.1 µF
*AC COUPLING CAPACITORS ARE NOT
REQUIRED IF THE OUTPUT OF THE
HDMP-3268 IS DRIVING THE INPUT OF
THIS OR ANOTHER HDMP-3268.
GND
GND
Figure 2. High-speed output and input simplified circuit schematics.
2
HS_IN
~~ 0.7 V
AC
50 Ω
50 Ω