TQ8017 Datasheet, PDF (1/8 Pages) TriQuint Semiconductor – 1.25 Gigabit/sec 16x16 Digital PECL 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
TQ8017
TQ8017
1.25 Gigabit/sec
O0..15
O0..15 _{16x16 Digital PECL}
Crosspoint Switch
VCC
VEE
GND
The TQ8017 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 PECL I/O, the TQ8017 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 TQ8017 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’s 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.
Electrical Characteristics
Data Rate/port
Jitter
Channel Propagation Delay
Ch-to-Ch Propagation Delay Skew
Min
Max
Units
1.25
Gb/s
150
ps pk-pk
2000
ps
500
ps
Typical output waveform with
all channels driven
Features
• >20 Gb/s aggregate BW
• 1.25 Gb/s/port NRZ data rate
• Non-blocking architecture
• 500 ps delay match
• Differential PECL-level data
I/O; Selectable CMOS/TTL-
level control inputs
• Low jitter and signal skew
• Fully differential data path
• Double-buffered
configuration latches
• 132-pin MQFP package
• Single +5V supply
Applications
• Telecom/Datacom Switching
• Hubs and Routers
• Video Switching
For additional information and latest specifications, see our website: www.triquint.com
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