MAX7474EAE+T Maxim Integrated Products, MAX7474EAE+T Datasheet - Page 8

• Manufacturer Part Number: MAX7474EAE+T
• Description: IC ADAPTV EQ VID OVER UTP 16SSOP
• Manufacturer: Maxim Integrated Products
• Type: Equalizerr

Specifications of MAX7474EAE+T

• Applications: Security Systems
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

of monitors or recording devices. Cabling is a signifi-
cant part of a CCTV installation cost. Low-cost
unshielded twisted-pair (UTP) cable has increasingly
replaced coaxial cable in security systems. Most cam-
eras and switchers use single-channel coax connec-
tors,
single-ended-to-differential video conversion such as
active drivers. Active cable compensation is required
for longer cable lengths. Active compensation can
occur on the receive side, camera side, or both. The
MAX7474 provides active compensation on the receive
side that is superior to balun, or active fixed cable
equalization.
Adaptive Equalizer for
Video Over Twisted Pair
Figure 1. Typical Input and Output Connections
8
_______________________________________________________________________________________
and
CAMERA
CAMERA
1V
1V
therefore
P-P
P-P
require
50Ω
50Ω
50Ω
50Ω
some
+0.5V
-0.5V
+0.5V
-0.5V
P-P
P-P
P-P
P-P
type
(0 TO 600m)
(0 TO 600m)
CAT 5e
CAT 5e
of
50Ω
50Ω
The MAX7474 operates from a +4.75V to +5.25V single
supply. Connect both V
each one with a 0.1µF capacitor to GND. Connect the
0.1µF capacitors as close as possible to the device to
minimize the loop formed when the bypass capacitor is
connected to the device, thus avoiding additional
inductance that could resonate with the capacitor. For
optimum performance, use a ground plane and keep
the input and output traces away from each other.
PROCESS: BiCMOS
Power Supply, Grounding, and Layout
0.022µF
50Ω
0.022µF
50Ω
0.022µF
0.022µF
MAX7474
MAX7474
CC
1V
1V
P-P
inputs together and bypass
Chip Information
P-P
220µF
ADC
75Ω
BPLVL
CVBS
CVBS