EQCO62R20.3 Datasheet, PDF (5/34 Pages) Microchip Technology – EQCO62R20.3 6.25 Gbps Asymmetric Coax Equalizer

EQCO62R20.3/EQCO31R20.3
1.1 Pinout and Pin Description
FIGURE 1-2:
EQCO62R20.3 PIN DIAGRAM(VIEWED FROM TOP)
VCC NC
16
15
NC VCC
14
13
GND 1
12 GND
SDIp 2
11 SDOp
SDIn 3
EQCO62R20.3
10 SDOn
GND 4
GND TAB
9 GND
5
6
7
8
LFI AmpR RiseR NC
TABLE 1-1: EQCO62R20.3 PIN DESCRIPTIONS
Pin Number
Pin Name
Signal Type
Description
(TAB)
13, 16
1, 4, 9, 12
2, 3
11, 10
5
6
7
8, 14, 15
GND
VCC
GND
SDIp, SDIn
Power
Power
Power
CML Input
SDOp/SDOn CML Output
LFI
Input
AmpR
Input
RiseR
Input
NC
—
Use as single-point ground.
Connect to 1.2V of power supply.
Connect to ground of power supply.
Serial input positive/negative differential serial input. Connect
SDIn to shield of cable via termination network. External 15Ω
resistors required.
Serial output positive/negative differential serial output.
Output has a swing of 2x600 mV and has 2x50Ω on-chip
termination resistors.
Uplink input signal. LVTTL signal with 1.2V input swing.
External series resistor is required for 2.5V (3.9 kΩ) or 3.3V
(6.2 kΩ) input swing.
Connected to VCC by a resistor that selects output swing of
the uplink signal. Typical value is R_amp = 1.2 kΩ for rise/fall
times of 11 ns.
Connected to VCC by a resistor that selects rise time of the
uplink signal. Typical value is R_rise = 10 kΩ for rise/fall times
of 11 ns.
Do not connect. Leave these pins floating. Used for
internal testing.
 2012-2016 Microchip Technology Inc.
DS60001302B-page 5