DS25BR110TSD National Semiconductor, DS25BR110TSD Datasheet
DS25BR110TSD
Specifications of DS25BR110TSD
Available stocks
Related parts for DS25BR110TSD
DS25BR110TSD Summary of contents
Page 1
... Typical Application © 2007 National Semiconductor Corporation Features ■ 3.125 Gbps low jitter, high noise immunity, low power operation ■ ...
Page 2
... VCC 8 GND DAP Control Pins (EQ0 and EQ1) Truth Tables EQ1 Ordering Codes and Configurations NSID Function DS25BR100TSD Buffer/Repeater DS25BR110TSD Receiver DS25BR120TSD Driver DS25BR150TSD Buffer/Repeater www.national.com 30005306 Pin Type Pin Description Input Equalizer select pin. Input Non-inverting LVDS input pin. Input Inverting LVDS input pin ...
Page 3
... 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 Input Voltage (EQ0, EQ1) LVDS Input Voltage (IN+, IN−) LVDS Differential Input Voltage ((IN+) - (IN−)) LVDS Output Voltage (OUT+, OUT−) LVDS Differential Output Voltage ((OUT+) - (OUT− ...
Page 4
Symbol Parameter LVDS INPUT DC SPECIFICATIONS (IN+, IN-) V Input Differential Voltage ID V Differential Input High Threshold TH V Differential Input Low Threshold TL V Common Mode Voltage Range CMR I Input Current IN C Input Capacitance IN R ...
Page 5
AC Electrical Characteristics Over recommended operating supply and temperature ranges unless otherwise specified. (Notes 9, 10) Symbol Parameter LVDS OUTPUT AC SPECIFICATIONS (OUT+, OUT-) t Differential Propagation Delay High to Low PHLD t Differential Propagation Delay Low to High PLHD ...
Page 6
Symbol Parameter JITTER PERFORMANCE WITH EQ = LOW (Figures 5 and RJ1B Random Jitter (RMS Value) t RJ2B Test Channel D (Note 14) t DJ1B Deterministic Jitter (Peak to Peak) t DJ2B Test Channel D (Note 15) ...
Page 7
DC Test Circuits AC Test Circuits and Timing Diagrams FIGURE 1. Differential Driver DC Test Circuit FIGURE 2. Differential Driver AC Test Circuit FIGURE 3. Propagation Delay Timing Diagram FIGURE 4. LVDS Output Transition Times 7 30005320 30005321 30005322 30005323 ...
Page 8
Equalization Test Circuits Test Channel Loss Characteristics The test channel was fabricated with Polyclad PCL-FR-370-Laminate/PCL-FRP-370 Prepreg materials (Dielectric constant of 3.7 and Loss Tangent of 0.02). The edge coupled differential striplines have the following geometries: Trace Width ( ...
Page 9
Device Operation INPUT INTERFACING The DS25BR110 accepts differential signals and allows simple coupling. With a wide common mode range, the DS25BR110 can be DC-coupled with all common differential drivers (i.e. LVPECL, LVDS, CML). The following three figures ...
Page 10
OUTPUT INTERFACING The DS25BR110 outputs signals compliant to the LVDS standard. It can be DC-coupled to most common differential receivers. The following figure illustrates typical DC-coupled interface to common differential receivers and assumes that the receivers have high impedance inputs. ...
Page 11
Typical Performance Maximum Data Rate as a Function of CAT5e (Belden 1700A) Length Maximum Data Rate as a Function of CAT7 (Siemon Tera) Length Maximum Data Rate as a Function of CAT5e (Belden 1700A) Length DS25BR120 Used as a Driver ...
Page 12
A 2.5 Gbps NRZ PRBS-7 After 70" Differential FR-4 Stripline V:100 mV / DIV, H: DIV A 3.125 Gbps NRZ PRBS-7 After 70" Differential FR-4 Stripline V:100 mV / DIV, H: DIV Total Jitter as a ...
Page 13
Total Jitter as a Function of Data Rate Total Jitter as a Function of Input Amplitude Total Jitter as a Function of Input Amplitude 30005343 Total Jitter as a Function of Data Rate Total Jitter as a Function of Input ...
Page 14
... Physical Dimensions (See AN-1187 for PCB Design and Assembly Recommendations) www.national.com inches (millimeters) unless otherwise noted Order Number DS25BR110TSD NS Package Number SDA08A 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 Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...