DS99R105VS National Semiconductor, DS99R105VS Datasheet

DS99R105VS

Manufacturer Part Number
DS99R105VS
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of DS99R105VS

Number Of Elements
1
Number Of Receivers
24
Number Of Drivers
1
Input Type
CMOS/TTL
Operating Supply Voltage (typ)
3.3V
Output Type
Serializer
Differential Output Voltage
1.2V
Transmission Data Rate
960Mbps
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
48
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS99R105VS/NOPB
Manufacturer:
Texas Instruments
Quantity:
10 000
Part Number:
DS99R105VSX/NOPB
Manufacturer:
Texas Instruments
Quantity:
10 000
© 2007 National Semiconductor Corporation
DS99R105/DS99R106
3-40MHz DC-Balanced 24-Bit LVDS Serializer and
Deserializer
General Description
The DS99R105/DS99R106 Chipset translates a 24-bit paral-
lel bus into a fully transparent data/control LVDS serial stream
with embedded clock information. This single serial stream
simplifies transferring a 24-bit bus over PCB traces and cable
by eliminating the skew problems between parallel data and
clock paths. It saves system cost by narrowing data paths that
in turn reduce PCB layers, cable width, and connector size
and pins.
The DS99R105/DS99R106 incorporates LVDS signaling on
the high-speed I/O. LVDS provides a low power and low noise
environment for reliably transferring data over a serial trans-
mission path. By optimizing the serializer output edge rate for
the operating frequency range EMI is further reduced.
In addition the device features pre-emphasis to boost signals
over longer distances using lossy cables. Internal DC bal-
anced encoding/decoding is used to support AC-Coupled
interconnects.
Features
Block Diagram
TRI-STATE
3 MHz–40 MHz clock embedded and DC-Balancing 24:1
and 1:24 data transmissions
Capable to drive shielded twisted-pair cable
User selectable clock edge for parallel data on both
Transmitter and Receiver
®
is a registered trademark of National Semiconductor Corporation.
202081
Internal DC Balancing encode/decode – Supports AC-
coupling interface with no external coding required
Individual power-down controls for both Transmitter and
Receiver
Embedded clock CDR (clock and data recovery) on
Receiver and no external source of reference clock
needed
All codes RDL (random data lock) to support live-
pluggable applications
LOCK output flag to ensure data integrity at Receiver side
Balanced T
Receiver side
PTO (progressive turn-on) LVCMOS outputs to reduce
EMI and minimize SSO effects
All LVCMOS inputs and control pins have internal
pulldown
On-chip filters for PLLs on Transmitter and Receiver
Integrated 100Ω input termination on Receiver
4 mA Receiver output drive
48-pin TQFP and 48-pin LLP packages
Pure CMOS .35 μm process
Power supply range 3.3V ± 10%
Temperature range 0°C to +70°C
8 kV HBM ESD tolerance
SETUP
/T
HOLD
between RCLK and RDATA on
20208101
www.national.com
October 2007

Related parts for DS99R105VS

DS99R105VS Summary of contents

Page 1

... User selectable clock edge for parallel data on both Transmitter and Receiver Block Diagram TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2007 National Semiconductor Corporation ■ Internal DC Balancing encode/decode – Supports AC- coupling interface with no external coding required ■ Individual power-down controls for both Transmitter and Receiver ■ ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( LVCMOS/LVTTL Input Voltage LVCMOS/LVTTL Output Voltage LVDS Receiver Input Voltage LVDS Driver Output Voltage LVDS Output Short Circuit Duration ...

Page 3

Symbol Parameter LVDS DC SPECIFICATIONS V Differential Threshold High TH Voltage V Differential Threshold Low TL Voltage I Input Current IN R Differential Internal T Termination Resistance V Output Differential Voltage OD (D )–(D ) OUT+ OUT− ΔV Output Differential ...

Page 4

Symbol Parameter I Deserializer (Rx) DDR Total Supply Current (includes load current) Deserializer (Rx) Total Supply Current (includes load current) I Deserializer (Rx) DDRZ Supply Current Power-down Serializer Timing Requirements for TCLK Over recommended operating supply and temperature ranges unless ...

Page 5

Symbol Parameter t ROUT (7:0) Setup Data to ROS RCLK (Group 1) t ROUT (7:0) Hold Data to RCLK ROH (Group 1) t ROUT (15:8) Setup Data to ROS RCLK (Group 2) t ROUT (15:8) Hold Data to ROH RCLK ...

Page 6

AC Timing Diagrams and Test Circuits FIGURE 3. Serializer LVDS Output Load and Transition Times www.national.com FIGURE 1. Serializer Input Checker-board Pattern FIGURE 2. Deserializer Output Checker-board Pattern FIGURE 4. Serializer Input Clock Transition Times 6 20208102 20208103 20208104 20208106 ...

Page 7

FIGURE 5. Serializer Setup/Hold Times FIGURE 6. Serializer TRI-STATE Test Circuit and Delay 7 20208107 20208108 www.national.com ...

Page 8

FIGURE 7. Serializer PLL Lock Time, and TPWDNB TRI-STATE Delays FIGURE 9. Transmitter Output Eye Opening (TxOUT_E_O) www.national.com FIGURE 8. Serializer Delay 8 20208109 20208110 20208115 ...

Page 9

VOD = (D ) – OUT+ OUT - Differential output signal is shown – (D OUT+ FIGURE 11. Deserializer LVCMOS/LVTTL Output Load and Transition Times ), device in Data Transfer mode. OUT - FIGURE 10. ...

Page 10

Note: C includes instrumentation and fixture capacitance within ROUT[23:0] L FIGURE 13. Deserializer TRI-STATE Test Circuit and Timing FIGURE 14. Deserializer PLL Lock Times and RPWDNB TRI-STATE Delay www.national.com 20208113 10 20208114 ...

Page 11

RxIN_TOL_L is the ideal noise margin on the left of the figure, with respect to ideal. RxIN_TOL_R is the ideal noise margin on the right of the figure, with respect to ideal. FIGURE 16. Receiver Input Tolerance (RxIN_TOL) and Sampling ...

Page 12

DS99R105 Serializer Pin Descriptions Pin # Pin Name I/O LVCMOS PARALLEL INTERFACE PINS 4-1, DIN[23:0] LVCMOS_I 48-44, 41-32, 29-25 10 TCLK LVCMOS_I CONTROL AND CONFIGURATION PINS 9 TPWDNB LVCMOS_I 18 DEN LVCMOS_I 23 PRE LVCMOS_I 11 TRFB LVCMOS_I 12 VODSEL ...

Page 13

DS99R105 Pin Diagram Serializer - DS99R105 TOP VIEW 13 20208119 www.national.com ...

Page 14

DS99R106 Deserializer Pin Descriptions Pin # Pin Name I/O LVCMOS PARALLEL INTERFACE PINS 25-28, ROUT[7:0] LVCMOS_O 31-34 13-16, ROUT[15:8] LVCMOS_O 21-24 3-6, ROUT[23:16] LVCMOS_O 9-12 18 RCLK LVCMOS_O CONTROL AND CONFIGURATION PINS 43 RRFB LVCMOS_I 48 REN LVCMOS_I 1 RPWDNB ...

Page 15

DS99R106 Pin Diagram Deserializer - DS99R106 TOP VIEW 15 20208120 www.national.com ...

Page 16

Functional Description The DS99R105 Serializer and DS99R106 Deserializer chipset is an easy-to-use transmitter and receiver pair that sends 24-bits of parallel LVCMOS data over a single serial LVDS link from 72 Mbps to 960 Mbps throughput. The DS99R105 transforms a ...

Page 17

LOCK pin to determine whether data on the ROUT is valid. POWERDOWN The Powerdown state is a low power sleep mode that the Se- rializer and Deserializer may use to reduce power when no data is being ...

Page 18

LIVE LINK INSERTION The Serializer and Deserializer devices support live plug- gable applications. The “Hot Inserted” operation on the serial interface does not disrupt communication data on the active data lines. The automatic receiver lock to random data “plug & ...

Page 19

FIGURE 18. DS99R105 Typical Application Connection 19 20208121 www.national.com ...

Page 20

FIGURE 19. DS99R106 Typical Application Connection www.national.com 20 20208122 ...

Page 21

Truth Tables TPWDNB (Pin 9) (Pin 18 RPWDNB REN (Pin 1) (Pin 48 TABLE 1. DS99R105 Serializer Truth Table DEN Tx PLL Status (Internal ...

Page 22

... Physical Dimensions Ordering Information NSID DS99R105VS 48 Lead TQFP style, 7.0 X 7.0 X 1.0 mm, 0.5 mm pitch DS99R105VSX 48 Lead TQFP style, 7.0 X 7.0 X 1.0 mm, 0.5 mm pitch, 1000 std reel DS99R106VS 48 Lead TQFP style, 7.0 X 7.0 X 1.0 mm, 0.5 mm pitch DS99R106VSX 48 Lead TQFP style, 7.0 X 7.0 X 1.0 mm, 0.5 mm pitch, 1000 std reel www ...

Page 23

Physical Dimensions inches (millimeters) unless otherwise noted Ordering Information NSID DS99R105SQ 48 Lead LLP style, 7.0 X 7.0 X 0.8 mm, 0.5 mm pitch DS99R105SQX 48 Lead LLP style, 7.0 X 7.0 X 0.8 mm, 0.5 mm pitch, 1000 std ...

Page 24

... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

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