TQ8025 Crosspoint Switch Datasheet
2.5 Gigabit/sec 16x16 Digital Crosspoint Switch
|Total Page||10 Pages|
S E M I C O N D U C T O R, I N C .
16 x 16
16 x 4
PRELIMINARY DATA SHEET
The TQ8025 is a non-blocking 16 x 16 digital crosspoint switch capable of
data rates greater than 2.5 gigabits per second per port. With a fully
differential internal data path and PECL/CML I/O, the TQ8025 offers an
extremely high data rate with exceptional signal fidelity. The use of fully
differential logic results in low crosstalk, jitter, and signal skew. The
TQ8025 is ideally suited for digital video, data communications,
telecommunication switching, and cross-connect applications.
The non-blocking architecture uses 16 fully independent 16:1 multiplexers
which allow each output port to be independently programmed to any input
port. The TQ8025 offers two programming options: a flexible port-by-port
option, and a fast configuration option.
• 16 PECL/CML fully differential
• >2.5 Gb/s data bandwidth
• >40 Gb/s aggregate bandwidth
• Non-blocking architecture
• 80 ns configuration time
• Autonomous control of external
RAM for configuration data
• Low jitter and signal skew
• ±100 ps delay match (one input
to all outputs)
• Fully differential data path
• 132-pin MLC package with
Using the fast configuration option, all 16 switch ports are programmed
within 80ns by serially loading four 16-bit input port selection words. Two
output pins (RADD0,1) are provided to drive an external RAM
(n x 4 x 16 bits) used to store the switch configuration. An Autoconfigure
option automatically transfers the new configurations into the switch core.
Autoconfiguration occurs after the last input selection word is clocked into
the programming registers.
Data integrity is maintained on all unchanged data paths for both the port-
by-port and fast configuration options.
• SONET OC-48 data path
• Double-speed Fibre Channel
• Hubs and routers
• High-definition video switching
• Parallel processing
For additional information and latest specifications, see our website: www.triquint.com
PRELIMINARY DATA SHEET
Table 1. Absolute Maximum Ratings 4
Case temperature with bias 1
Supply voltage 2
Voltage to any input 2
Voltage to any output 2
Current to any input 2
Current from any output 2
Power dissipation of output 3
–65 °C to +150 °C
TJ = 150 °C
0 V to +7.0 V
–0.5 V to VCC + 0.5 V
–0.5 V to VCC + 0.5 V
–1.0 mA to +1.0 mA
Notes: 1. TC is measured at the case top.
2. All voltages are measeured with respect to GND 0V and are continuous.
3. POUT = (VCC – VOUT) x IOUT.
4. Absolute maximum ratings in this table are those beyond which the device's performance may be impaired
and/or permanent damage may occur.
Table 2. Recommended Operating Conditions 4
Case Operating Temperature
Load Termination Supply Voltage
Current Positive Supply
Output Termination Load Resistance
Thermal Resistance Channel to Case
VCC – 2.0
Notes: 1. TC measured at case top. Use of adequate heatsink is required.
2. The VTT and RLOAD combination is subject to maximum output current and power restrictions.
3. Contact the Factory for extended temperature range applications.
4. Functionality and/or adherence to electrical specifications is not implied when
the device is subjected to conditions that exceed, singularly or
in combination, the operating range specified.
2 For additional information and latest specifications, see our website: www.triquint.com
|Features||T R I Q U I N T S E M I C O N D U C T O R, I N C . TQ8025 32 DIØ–15 (differential) PECL/CML Input Buffers 16 x 16 Crosspoint Switch Matrix 32 PRELIMINARY DATA SHEET DOØ–15 (diff erential) PECL/CML Output Buffers RES ET– LDMODE CONFIG 16 x 4 Configurati on Latches 4-Bit Shift Register READY 2.5 Gigabit/sec 16x16 Digital Crosspoin t Switch Features • 16 PECL/CML fully differential (back-terminated) outputs • >2.5 Gb/s data bandwidth per chann el • >40 Gb/s aggregate bandwidth SWI TCHING PRODUCTS ADD15 +5V GND ADDØ 4-Bit Shift Register LOAD CLOCK ADDRE N AUTOCONFIG Address Generator and Con trol RADDØ RADD1 TQ8025 The TQ8025 is a non-blocking 16 x 16 digital cross point switch capable of data rates grea ter than 2.5 gigabits per second per po rt. With a fully differential internal data path and PECL/CML I/O, the TQ8025 offers an extremely high data rate with exceptional signal fidelity. The use o f fully differential logic results in low crosstalk, jitter, and signal skew. T.|
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