EL9111, EL9112
®
Data Sheet
September 19, 2006
FN7450.3
Triple Differential Receiver/Equalizer
Features
The EL9111 and EL9112 are triple channel differential
receivers and equalizers. They contains three high speed
differential receivers with five programmable poles. The
outputs of these pole blocks are then summed into an output
buffer. The equalization length is set with the voltage on a
single pin. Using the Enable pin on the EL9111 and EL9112,
the outputs can be placed into a high impedance state
enabling multiple devices to be connected in parallel and
used in a multiplexing application.
• 150MHz -3dB bandwidth
• CAT-5 compensation
- 50MHz @ 1000 ft
- 125MHz @ 500 ft
• 108mA supply current
• Differential input range 3.2V
• Common mode input range -4V to +3.5V
• ±5V supply
The gain can be adjusted up or down on each channel by 6dB
using its V
control signal. In addition, a further 6dB of gain
GAIN
• Output to within 1.5V of supplies
• Available in 28 Ld QFN package
• Pb-free plus anneal available (RoHS compliant)
can be switched in to provide a matched drive into a cable.
The EL9111 and EL9112 have a bandwidth of 150MHz and
consume just 108mA on ±5V supply. A single input voltage is
used to set the compensation levels for the required length
of cable.
Applications
• Twisted-pair receiving/equalizer
• KVM (Keyboard/Video/Mouse)
• VGA over twisted-pair
• Security video
The EL9111 is a special version of the EL9112 that decodes
syncs encoded onto the common modes of three pairs of
CAT-5 cable by the EL4543. (Refer to the EL4543 datasheet
for details.)
The EL9111 and EL9112 are available in a 28 Ld QFN
package and are specified for operation over the full -40°C to
+85°C temperature range.
Pinouts
EL9111
EL9112
(28 LD QFN)
TOP VIEW
(28 LD QFN)
TOP VIEW
VSMO_B
VOUT_B
VSPO_B
VSPO_G
VOUT_G
VSMO_G
VSMO_R
VOUT_R
1
2
3
4
5
6
7
8
22 VSP
VSMO_B
VOUT_B
VSPO_B
VSPO_G
VOUT_G
VSMO_G
VSMO_R
VOUT_R
1
2
3
4
5
6
7
8
22 VSP
21 VINM_B
20 VINP_B
19 VINM_G
18 VINP_G
17 VINM_R
16 VINP_R
15 VSM
21 VINM_B
20 VINP_B
19 VINM_G
18 VINP_G
17 VINM_R
16 VINP_R
15 VSM
THERMAL
PAD
THERMAL
PAD
EXPOSED DIEPLATE SHOULD BE CONNECTED TO -5V
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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