T
R
I
Q
U
I
N
T
S E M I C O N D U C T O R, I N C .
TQ8015
D0..15
D0..15
Input
Buffers
16 x 16
Crosspoint
Switch
Matrix
64
CONFIGURE
(R2)
Sixteen 4-Bit Latches
Output
Buffers
O0..15
O0..15
1.25 Gigabit/sec
16x16 Digital ECL
Crosspoint Switch
LOAD
IA0..3
OA0..3
4
4
(R1)
Sixteen 4-Bit Addressable
Output Select Latches
4:16
Decoder
VCC
VEE
TQ8015
GND
The TQ8015 is a non-blocking 16 x 16 digital crosspoint switch capable of
data rates greater than 1.25 Gigabits per second per port. Utilizing a fully
differential internal data path and ECL I/O, the TQ8015 offers a high data
rate with exceptional signal fidelity. The symmetrical switching and noise
rejection characteristics inherent in differential logic result in low jitter and
signal skew. The TQ8015 is ideally suited for digital video, data
communications and telecommunication switching applications.
The non-blocking architecture uses 16 fully independent 16:1 multiplexers
(see diagram on page 2), allowing each output port to be independently
programmed to any input port. The switch is configured by sequentially
loading each multiplexer鈥檚 4-bit program latch (OA0:3) with the desired
input port address (IA0:3) and enabling the LOAD pin. When complete, the
CONFIGURE pin is strobed and all new configurations are simultaneously
transferred into the switch multiplexers. Data integrity is maintained on all
unchanged data paths.
Typical output waveform with all
channels driven
Features
鈥?>20 Gb/s aggregate BW
鈥?1.25 Gb/s/port NRZ data rate
鈥?Non-blocking architecture
鈥?500 ps delay match
鈥?Differential ECL-level data
I/O; CMOS-level control inputs
鈥?Low jitter and signal skew
鈥?Fully differential data path
鈥?Double buffered configuration
latches
鈥?132-pin MQFP package
Electrical Characteristics
Min
Data Rate/Port
Jitter
Channel Propagation Delay
Ch-to-Ch Propagation Delay Skew
1.25
150
2000
500
Max
Units
Gb/s
ps peak-peak
ps
ps
Applications
Telecom/Datacom Switching
Hubs and Routers
Video Switching
For additional information and latest specifications, see our website:
www.triquint.com
1
SWITCHING
PRODUCTS
RESET
64
1
2
3
4
5
6
7
8
