qlx411riq Intersil Corporation, qlx411riq Datasheet - Page 9

• Manufacturer Part Number: qlx411riq
• Description: Quad Lane Extender
• Manufacturer: Intersil Corporation

Typical Application Reference Design
Figure 8 shows reference design schematics for a QLx411GRx evaluation board with an SMA connector interface.
Loss of signal indicator (Channels 1 and 2)
FIGURE 8. APPLICATION CIRCUIT FOR THE QLx411GRx EVALUATION BOARD SHOWING THE USE OF THE CONTROL
(*100pF capacitor should be positioned closest to the pin)
Bypass circuit for each V
PINS FOR SETTING THE EQUALIZER COMPENSATION LEVEL
1.2V
1.2V
DD
pin: 4, 7, 10, 29, 32, 35
Detection threshold
9
reference voltage
IN3[N]
IN4[N]
IN3[P]
IN4[P]
IN1[N]
IN2[N]
IN1[P]
IN2[P]
LOS1
LOS2
1.2V
1.2V
1.2V
DT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
QLx411GRx
QLx411GRx
A) DC Blocking Capacitors = X7R or COG
0.1µF (>6GHz bandwidth)
for Channels 1 and 2
for Channels 3 and 4
= SMA Connector
EQ Boost Control
EQ Boost Control
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
OUT1[P]
OUT1[N]
1.2V
OUT2[P]
OUT2[N]
1.2V
OUT3[P]
OUT3[N]
1.2V
OUT4[P]
OUT4[N]
LOS3
LOS4
GND
A
Loss of signal indicator (Channels 3 and 4)
LANE EXTENDER
Control Pin Mode
QLx411GRx
Reference
Quellan, Inc.
November 19, 2009
FN6989.1