SN65LVDS22_07 Datasheet, PDF (1/14 Pages) Texas Instruments – DUAL MULTIPLEXED LVDS REPEATERS

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SN65LVDS22
SN65LVDM22
SLLS315C – DECEMBER 1998 – REVISED JUNE 2002
DUAL MULTIPLEXED LVDS REPEATERS
FEATURES
• Meets or Exceeds the Requirements of ANSI
TIA/EIA-644-1995 Standard
• Designed for Clock Rates up to 200 MHz
(400 Mbps)
• Designed for Data Rates up to 250 Mbps
• Pin Compatible With SN65LVDS122 and
SN65LVDT122, 1.5 Gbps 2x2 Crosspoint
Switch From TI
• ESD Protection Exceeds 12 kV on Bus Pins
• Operates From a Single 3.3-V Supply
• Low-Voltage Differential Signaling With
Output Voltages of 350 mV Into:
– 100-Ω Load (SN65LVDS22)
– 50-Ω Load (SN65LVDM22)
• Propagation Delay Time; 4 ns Typ
• Power Dissipation at 400 Mbps of 150 mW
• Bus Pins Are High Impedance When Disabled
or With V_CC Less Than 1.5 V
• LVTTL Levels Are 5 V Tolerant
• Open-Circuit Fail Safe Receiver
DESCRIPTION
The SN65LVDS22 and SN65LVDM22 are differential
line drivers and receivers that use low-voltage
differential signaling (LVDS) to achieve signaling
rates as high as 400 Mbps. The receiver outputs can
be switched to either or both drivers through the
multiplexer control signals S0 and S1. This allows the
flexibility to perform splitter or signal routing functions
with a single device.
The TIA/EIA-644 standard compliant electrical
interface provides a minimum differential output
voltage magnitude of 247 mV into a 100-Ω load and
receipt of 100 mV signals with up to 1 V of ground
potential difference between a transmitter and
receiver. The SN65LVDM22 doubles the output drive
current to achieve LVDS levels with a 50-Ω load.
SN65LVDS22D and SN65LVDS22PW (Marked as LVDS22)
SN65LVDM22D and SN65LVDM22PW (Marked as LVDM22)
(TOP VIEW)
1B 1
1A 2
S0 3
1DE 4
S1 5
2A 6
2B 7
GND 8
16 V_CC
15 V_CC
14 1Y
13 1Z
12 2DE
11 2Z
10 2Y
9 GND
logic diagram (positive logic)
2
1A
+
1B ¹
_
0
1
4
1DE
12
2DE
3
S0
14
1Y
13
1Z
5
S1
0
6
2A
+
7
2B
_
1
10 _2Y
11
2Z
MUX TRUTH TABLE
INPUT
S1 S0
0
0
0
1
1
0
1
1
OUTPUT
1Y/1Z
1A/1B
2A/2B
1A/1B
2A/2B
2Y/2Z
1A/1B
2A/2B
2A/2B
1A/1B
FUNCTION
Splitter
Splitter
Router
Router
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1998–2002, Texas Instruments Incorporated