TQ8016 Datasheet, PDF (1/9 Pages) TriQuint Semiconductor – 1.3 Gigabit/sec 16x16 Digital ECL Crosspoint Switch

TRIQUINT
S E M I C O N D U C T O R, I N C .
D0..15
D0..15
CONFIGURE
RESET
LOAD
IA0..3
OA0..3
Input
Buffers
16 x 16
Crosspoint
Switch
Matrix
Output
Buffers
64
(R2)
Sixteen 4-Bit Latches
64
(R1)
4
Sixteen 4-Bit Addressable
Output Select Latches
4
4:16
Decoder
TQ8016
O0..15
O0..15
VCC
VEE
GND
TQ8016
1.3 Gigabit/sec
16x16 Digital ECL
Crosspoint Switch
The TQ8016 is a 16 x 16 differential digital crosspoint switch capable of
handling 1.3 Gbit/s data rate. The high data rate and exceptional signal
fidelity is made possible with TriQuint's fully differential Source-Coupled
FET Logic (SCFL) standard cells. The symmetrical switching characteristic
inherent in differential logic results in low signal skew and crosstalk for
maximum signal fidelity.
The user can independently configure any switch output to any input,
including an input chosen by another output. To configure the switch, the
4-bit output address (OA0..3) is decoded to enable the loading of the 4-bit
input selection data (IA0..3) on the rising edge of the LOAD signal. The
process is repeated until all desired connections are programmed. By
bringing the CONFIGURE signal high, the contents of the Output Select
Latches are transferred in parallel to a second row of 4-bit latches (R2),
causing the switch reconfiguration.
This double row architecture minimizes the time to completely reconfigure
the switch since a new set of addresses can be loaded to the Output Select
Latches (R1) while the switch is active (transmitting). At the time of
reconfiguration, no data drop-out occurs for any output whose input
connection does not change.
Typical output waveform with
all channels driven
Features
• >1.3 Gigabit/sec data rate
• Non-blocking architecture
• +200 ps delay match (one
input to all outputs)
• ECL-level data inputs/outputs;
CMOS-level control inputs
• Low crosstalk
• Fully differential data path
• Double row of output select
latches minimizes
reconfiguration time
• Available in 132-pin leaded
chip carrier
For applications which do not require synchronous configuration of the
switch, the LOAD and CONFIGURE inputs may be tied together.
For additional information and latest specifications, see our website: www.triquint.com
1