DS25BR204TSQ National Semiconductor, DS25BR204TSQ Datasheet - Page 11

• Manufacturer Part Number: DS25BR204TSQ
• Description: IC LVDS REPEATER, 1:4, 3.125 GBPS
• Manufacturer: National Semiconductor

Specifications of DS25BR204TSQ

• Supply Voltage Range: 3V To 3.6V
• Digital Ic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Operating Temperature Max: 85°C
• Operating: RoHS Compliant
• Base Number: 25
• Data Rate: 3.125Gbps
• Rohs Compliant: Yes

Functional Description
The DS25BR204 is a 3.125 Gbps 1:4 LVDS repeater opti-
mized for high-speed signal routing and switching over lossy
FR-4 printed circuit board backplanes and balanced cables.
Input Select Truth Table
The DS25BR204 has a pre-emphasis control pin for each
output for switching the transmit pre-emphasis to ON and
OFF setting and an equalization control pin for each input for
Transmit Pre-Emphasis Truth Table
Transmit Pre-emphasis Level Selection for an Output OUTn
Receive Equalization Truth Table
Receive Equalization Level Selection for an Input INn
CONTROL Pin (SEL_in) State
CONTROL Pin (PEn) State
CONTROL Pin (EQn) State
0
1
0
1
0
1
OUTPUT OUTn, n = {0, 1, 2, 3}
INPUT INn, n = {1, 2}
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The DS25BR204 SEL_in pin selects one out of two available
LVDS inputs. The following is the input select truth tables.
switching the receive equalization to ON and OFF setting. The
following are the transmit pre-emphasis and receive equal-
ization truth tables.
Pre-emphasis Level
Equalization Level
Input Selected
OFF
OFF
IN1
IN2
ON
ON
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