EQCO30T5.2 Datasheet, PDF (5/22 Pages) Microchip Technology – EQCO30T5.2 3G/HD-SDI Video Cable Driver

EQCO30T5.2
1.1 Pinout and Pin Description
FIGURE 1-2:
EQCO30T5.2 PIN DIAGRAM (VIEWED FROM TOP)
EQdis LFout NC
NC
16
15
14
13
SDIp 1
12 SDOp
SDIn 2
11 SDOn
GND 3
EQCO30T5
10 SD/HDB
Rref 4
GND TAB
9 VCC
5
6
7
8
NC enable NC
NC
TABLE 1-1: EQCO30T5.2 PIN DESCRIPTIONS
Pin Number
Pin Name
Signal Type
Description
(TAB)
1, 2
3
4
9
6
5, 7, 8, 13, 14
10
11
12
15
16
GND
SDIp, SDIn
GND
R_ref
VCC
Enable
NC
SD/HDB
SDOn
SDOp
LFout
EQdis
Power
Differential Input
Power
Analog Input
Power
Input
Input
Input
Driver Output
Driver Output
Output
Input
Use as single-point ground.
Serial input positive/negative differential serial input.
Ground. Connect to GND TAB.
Input determining output amplitude of cable driver.
+3.3V of power supply.
Enables the output driver pins.
Do not connect; leave floating. Used for internal testing.
Select edge rate.
Serial negative cable driver output with 50Ω on-chip serial
output resistance. Complement with 25Ω externally.
Serial positive cable driver output with 50Ω on-chip serial
output resistance. Complement with 25Ω externally.
Digital output signal of the full-duplex uplink.
Disables input trace equalization.
1.1.1 SDIP/SDIN
SDIp/SDIn together form a differential input pair.
Between SDIp and SDIn inputs, there is a
termination resistor of 100Ω. The intention is to
always use AC coupling. When AC-coupled, the
common-mode gets biased to 600 mV.
1.1.2 RREF
A resistor is to be connected between VCC and the
R_ref pin. A resistor of 750Ω gives an 800 mV launch
amplitude in the 75Ω coaxial cables. A larger resistor
gives a smaller amplitude.
1.1.3 ENABLE
When enable is floating or pulled high, the output
driver is enabled. When enable is low, the output is
disabled and power consumption drops significantly.
 2012-2016 Microchip Technology Inc.
DS60001303C-page 5