IDT5V5216
Single Channel Type-1/Type-2 M-LVDS to LVTTL/LVPECL/LVDS Transceiver
2
PIN DESCRIPTION
Table-1 Pin Description
Name
Pin No.
I/O
Type
Description
Global Signal
I
DR_EN: M-LVDS Driver Enable
This pin controls the M-LVDS driver: high for enable and low for disable.
DR_EN
5
4
LVTTL
LVTTL
Pull-down
RE_EN: Type-1/Type-2 M-LVDS Receiver and LVTTL/LVPECL/LVDS Drivers Enable
This pin controls the Type-1/Type-2 M-LVDS receiver and LVTTL/LVPECL/LVDS drivers: high
for disable and low for enable. Note that the LVTTL driver is in high impedance state when dis-
abled.
I
RE_EN
Pull-up
TYPE_SEL: Type-1/Type-2 M-LVDS Receiver Selection
This pin globally controls the Type-1/Type-2 M-LVDS receiver selection: high for Type-2 and
low for Type-1.
I
TYPE_SEL
DIFF_SEL
13
14
LVTTL
LVTTL
Pull-down
DIFF_SEL: Type Selection for LVTTL/LVPECL/LVDS Interface Input/Output
This pin globally determines the type of input/output of the LVTTL/LVPECL/LVDS interface:
high for LVDS, floating for LVTTL and low for LVPECL.
I
Pull to VDD/2
LVTTL/LVPECL/LVDS Interface
IN_A/IN_B: Positive/Negative LVPECL/LVDS Input
An up to 166 MHz differential signal is input on this pair of pins. The input signal can be
LVPECL or LVDS, as selected by the DIFF_SEL pin.
IN_A
IN_B
6
7
LVTTL/LVPECL/LVDS
LVPECL/LVDS
I
IN_A: LVTTL Input
An up to 166 MHz LVTTL signal is input on this pin, as selected by the DIFF_SEL pin. In this
case, the IN_B pin will be in high impedance state.
OUT_A/OUT_B: Positive/Negative LVPECL/LVDS Output
This pair of pins output an up to 166 MHz differential signal. The output signal can be LVPECL
or LVDS, as selected by the DIFF_SEL pin.
OUT_A
OUT_B
2
3
LVTTL/LVPECL/LVDS
LVPECL/LVDS
O
OUT_A: LVTTL Output
This pin outputs an up to 166 MHz LVTTL signal, as selected by the DIFF_SEL pin. In this
case, the OUT_B pin will be in high impedance state.
M-LVDS Interface
M_A
M_B
9
10
M_A/M_B: Positive/Negative M-LVDS Data Bus Interface
This pair of pins are connected to the M-LVDS data bus.
I/O
M-LVDS
Power Supply and Ground
3.3 V Power Supply
Ground
VDD
GND
11
8
Power
-
-
Ground
Others
NC
1, 12
-
-
NC: No Connection
Pin Description
9
May 18, 2006