SCAN90CP02SPX National Semiconductor, SCAN90CP02SPX Datasheet

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SCAN90CP02SPX

Manufacturer Part Number
SCAN90CP02SPX
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of SCAN90CP02SPX

Array Configuration
2x2
Number Of Arrays
1
Differential Data Transmission
Yes
Power Supply Requirement
Single
Operating Supply Voltage (typ)
3.3V
Package Type
LLP EP
Pin Count
28
Mounting
Surface Mount
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Cascading Capability
No
On-chip Buffers
No
On-chip Decoder
No
On-chip Latch Circuit
No
On-chip Mux/demux
No
Programmable
No
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Output Level
LVDS
Lead Free Status / RoHS Status
Not Compliant
© 2009 National Semiconductor Corporation
1.5 Gbps 2x2 LVDS Crosspoint Switch with Pre-Emphasis
and IEEE 1149.6
General Description
The SCAN90CP02 is a 1.5 Gbps 2 x 2 LVDS crosspoint
switch. High speed data paths and flow-through pinout mini-
mize internal device jitter, while configurable 0/25/50/100%
pre-emphasis overcomes external ISI jitter effects of lossy
backplanes and cables. The differential inputs interface to
LVDS and Bus LVDS signals such as those on National's 10-,
16-, and 18- bit Bus LVDS SerDes, as well as CML and
LVPECL. The SCAN90CP02 can also be used with ASICs
and FPGAs. The non-blocking crosspoint architecture is pin-
configurable as a 1:2 clock or data splitter, 2:1 redundancy
mux, crossover function, or dual buffer for signal booster and
stub hider applications.
Integrated IEEE 1149.1 (JTAG) and 1149.6 circuitry supports
testability of both single-ended LVTTL/CMOS and differential
LVDS PCB interconnect. The 3.3V supply, CMOS process,
and LVDS I/O ensure high performance at low power over the
entire industrial -40 to +85°C temperature range.
Block Diagram
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
200714
FIGURE 1. SCAN90CP02 Block Diagram
SCAN90CP02
Features
1.5 Gbps per channel
Low power: 70 mA in dual repeater mode @1.5 Gbps
Low output jitter
Configurable 0/25/50/100% pre-emphasis drives lossy
backplanes and cables
Non-blocking architecture allows 1:2 splitter, 2:1 mux,
crossover, and dual buffer configurations
Flow-through pinout
LVDS/BLVDS/CML/LVPECL inputs, LVDS Outputs
IEEE 1149.1 and 1149.6 compliant
Single 3.3V supply
Separate control of inputs and outputs allows for power
savings
Industrial -40 to +85°C temperature range
28-lead LLP package, or 32-lead LQFP package
20071401
March 9, 2009
www.national.com

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SCAN90CP02SPX Summary of contents

Page 1

... LVDS PCB interconnect. The 3.3V supply, CMOS process, and LVDS I/O ensure high performance at low power over the entire industrial -40 to +85°C temperature range. Block Diagram TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation SCAN90CP02 Features ■ 1.5 Gbps per channel ■ ...

Page 2

Pin Descriptions LQFP Pin LLP Pin Pin Name Number Number DIFFERENTIAL INPUTS COMMON TO ALL MUXES IN0 IN0− IN1 IN1− SWITCHED DIFFERENTIAL OUTPUTS OUT0 OUT0− OUT1 ...

Page 3

Connection Diagrams LLP Top View DAP = GND Configuration Select Truth Table SEL0 SEL1 EN0 EN1 ...

Page 4

Applications Information www.national.com FIGURE 2. SCAN90CP02 Configuration Select Decode 4 20071402 ...

Page 5

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( CMOS Input Voltage LVDS Receiver Input Voltage LVDS Driver Output Voltage LVDS Output Short Circuit Current Junction Temperature Storage Temperature Lead Temperature (Soldering, 4sec ...

Page 6

Symbol Parameter LVDS OUTPUT DC SPECIFICATIONS (OUT0±, OUT1±) V Differential Output Voltage Pre-emphasis (Note 5) ΔV Change in V between OD OD Complementary States V Offset Voltage (Note 6) OS ΔV Change in V between OS OS Complementary ...

Page 7

SCAN Circuitry Timing Requirements Symbol Parameter f Maximum TCK Clock Frequency MAX t TDI to TCK TDI to TCK TMS to TCK TMS to TCK, ...

Page 8

FIGURE 6. Configuration and Output Enable/Disable Timing www.national.com FIGURE 4. LVDS Output Transition Time FIGURE 5. LVDS Output Propagation Delay 8 20071416 20071417 20071420 ...

Page 9

Input Interfacing The SCAN90CP02 accepts differential signals and allow sim- ple coupling. With a wide common mode range, the Typical LVDS Driver DC-Coupled Interface to SCAN90CP02 Input Typical CML Driver DC-Coupled Interface to SCAN90CP02 Input Typical LVPECL ...

Page 10

Output Interfacing The SCAN90CP02 outputs signals that are compliant to the LVDS standard. Their outputs can be DC-coupled to most common differential receivers. The following figure illustrates typical DC-coupled interface to common differential receivers Typical SCAN90CP02 Output DC-Coupled Interface to ...

Page 11

Typical Performance Characteristics for LLP Package Power Supply Current vs. Bit Data Rate Dynamic power supply current was measured while running a PRBS 2 in dual channel repeater mode 3.3V +25° Total Jitter ...

Page 12

Design-For-Test (DfT) Features IEEE 1149.1 SUPPORT The SCAN90CP02 supports a fully compliant IEEE 1149.1 interface. The Test Access Port (TAP) provides access to boundary scan cells at each LVTTL I/O on the device for in- terconnect testing. Differential pins are ...

Page 13

... Physical Dimensions inches (millimeters) unless otherwise noted Order Number SCAN90CP02SP (1000 piece Tape and Reel), LLP, Plastic, QUAD, SCAN90CP02SPX (4500 piece Tape and Reel) NS Package Number SPA28A 13 www.national.com ...

Page 14

LQFP, Plastic, Quad Order Number SCAN90CP02VY (250 piece Tray) SCAN90CP02VYX (1000 piece Tape and Reel) NS Package Number VBE32A 14 ...

Page 15

Notes 15 www.national.com ...

Page 16

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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