DS30EA101 TI1 | Alldatasheet
Document overview
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Technical content
Features
■ Automatic equalization of coaxial and twisted pair cables ■ Data rates from 150 Mbps to 3.125 Gbps ■ Supports SD and HD video resolutions ■ Power consumption: 115 mW typical ■ Industrial temperature range: -40°C to +85°C
Applications
■ Cable extension ■ Data recovery equalization ■ Security and surveillance Typical Application 30151901 © 2012 Texas Instruments Incorporated 301519 SNLS404 www.ti.com DS30EA101 0.15 to 3.125 Gbps Adaptive Cable Equalizer
The exposed die attach pad is a negative electrical terminal for this device. It should be connected to the negative power supply voltage. 16-Pin LLP Order Number DS30EA101SQ
Ordering Information
Part Number Package Quantity DS30EA101SQ 16-Pin LLP, 4.0 x 4.0 x 0.8 mm, 0.65 mm pitch Reel of 1000 DS30EA101SQE 16-Pin LLP, 4.0 x 4.0 x 0.8 mm, 0.65 mm pitch Reel of 250 DS30EA101SQX 16-Pin LLP, 4.0 x 4.0 x 0.8 mm, 0.65 mm pitch Reel of 4500 www.ti.com 2 DS30EA101
Pin Name I/O, Type Description 1 VEE Ground Negative power supply (ground). 2 IN+ I, Data Non-inverting input. 3 IN- I, Data Inverting input. 4 VEE Ground Negative power supply (ground). 5 DNC N/A Do not connect – leave open. 6 DNC N/A Do not connect – leave open. 7 VEE Ground Negative power supply (ground). 8 VEE Ground Negative power supply (ground). 9 VEE Ground Negative power supply (ground). 10 OUT- O, LVDS Inverting output. 11 OUT+ O, LVDS Non-inverting output. 12 VEE Ground Negative power supply (ground). 13 VCC Power Positive power supply (+2.5V). 14 EN I, LVCMOS Output enable. LOS may be tied to this pin to inhibit the output when no input signal is present. This pin has an internal pulldown. H = Outputs disabled. L = Outputs enabled. 15 LOS O, LVCMOS Loss of signal. H = No input signal detected. L = Input signal detected. 16 VCC Power Positive power supply (+2.5V). DAP VEE Ground Connect exposed DAP to negative power supply (ground). 3 www.ti.com DS30EA101
Absolute Maximum Ratings (Note 1) Supply Voltage 3.1V Input Voltage (all inputs) −0.3V to VCC+0.3V Storage Temperature Range −65°C to +150°C Junction Temperature +125°C Package Thermal Resistance θJA 16-pin LLP θJC 16-pin LLP +40°C/W +6°C/W ESD Rating (HBM) ≥±6 kV ESD Rating (MM) ≥±300V ESD Rating (CDM) ≥±2 kV Recommended Operating Conditions Supply Voltage (VCC) 2.5V ±5% Input Coupling Capacitance 1.0 µF Operating Free Air Temperature (TA) -40°C to +85°C Over recommended supply voltage and operating temperature ranges, unless otherwise specified. (Note 2, Note 3) Symbol Parameter Conditions Reference Min Typ Max Units VIN Input Voltage 0m cable length IN+, IN- 720 800 880 mVP−P VSS Steady State Differential Output Voltage 100Ω load, Figure 1 OUT+, OUT- 500 700 900 mVP-P VOD Differential Output Voltage 250 350 450 mV ΔVOD Change in Magnitude of VOD for Complimentary Output States 50 mV VOS Offset Voltage 1.1 1.2 1.35 V ΔVOS Change in Magnitude of VOS for Complimentary Output States 50 mV IOS Output Short Circuit Current 30 mA VIH Input Voltage High Level EN 1.7 VCC V VIL Input Voltage Low Level VEE 0.7 V VOH Output Voltage High Level IOH = -2 mA LOS 2.0 V VOL Output Voltage Low Level IOL = +2 mA 0.2 V ICC Supply Current 45 65 mA www.ti.com 4 DS30EA101
2.5 Gbps,
1.5 Gbps,
3.125 Gbps,
device should not be operated beyond such conditions. or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not guaranteed. characterization and are not guaranteed. Note 4: Specification is guaranteed by characterization and is not tested in production. the unit interval (UI). The UI is the reciprocal of the data rate. FIGURE 1. LVDS Output Voltage, Offset, and Timing Parameters
The DS30EA101 equalizes data transmitted over copper ca- bles. It automatically adjusts its gain to reverse the effects of the cable loss and restore the original signal. For proper op- eration, the launch amplitude of the signal going into the cable (the signal amplitude prior to the cable attenuation) must be set appropriately. If the signal is single-ended, its single-end- ed amplitude must be 800 mVP-P ±10%. If the signal is differ- ential, its differential amplitude must be 800 mVP-P ±10% (400 mVP-P single-ended). INPUT INTERFACING The DS30EA101 accepts either differential or single-ended input. The input must be AC coupled. Figure 2 and Figure 3 show the typical configurations for differential input and sin- gle-ended input, respectively. For single-ended input, the unused input must be properly terminated as shown. OUTPUT INTERFACING The DS30EA101 output signals (OUT+ and OUT- ) are inter- nally terminated 100Ω LVDS outputs. These outputs can be DC coupled to most common differential receivers. LOS AND EN LOS indicates the loss of signal at the DS30EA101 input. LOS is high when no input signal is present and low when a valid input signal is detected. EN can be used to manually disable or enable the OUT+ and OUT- output signals. Applying a high input to EN will disable the DS30EA101 outputs by forcing the output to a logic 1, and applying a low input to EN will force the outputs to be active. EN has an internal pulldown to enable the outputs by default. LOS and EN may be tied together to automatically disable the DS30EA101 outputs when no input signal is present.
Application Information
CABLE EXTENDER APPLICATION The DS30EA101 together with the DS30BA101 form a cable extender chipset optimized for extending serial data streams from serializer/deseralizer (SerDes) pairs and FPGAs over 100Ω differential cables and 75Ω coaxial cables. Setting the correct DS30BA101 output amplitude and proper cable ter- mination are essential for optimal operation. Figure 2 shows the recommended chipset configuration for 100Ω differential cable and Figure 3 shows the recommended chipset config- uration for 75Ω coaxial cable. 30151931 FIGURE 2. Cable Extender Chipset Application Circuit for 100Ω Differential Cable
FIGURE 3. Cable Extender Chipset Application Circuit for 75Ω Coaxial Cable
Physical Dimensions inches (millimeters) unless otherwise noted 16-Pin LLP Order Number DS30EA101SQ www.ti.com 8 DS30EA101
9 www.ti.com DS30EA101
DS30EA101 0.15 to 3.125 Gbps Adaptive Cable Equalizer www.ti.com
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