Features • Equalizes up to 14 dB loss at 3.2 Gbps • 8 levels of programmable equalization • Settable through control pins or SMBus interface • Operates up to 3.2 Gbps with 40” FR4 traces • 0.12 UI residual deterministic jitter at 3.2 Gbps with 40” FR4 traces • Single 2.5V or 3.3V power supply • Signal Detect for individual channels • Standby mode for individual channels • Supports AC or DC-Coupling with wide input common-mode • Low power consumption: 375 mW Typ at 2.5V • Small 7 mm x 7 mm 48-pin LLP package • 9 kV HBM ESD Rating • -40 to 85°C operating temperature range Description The DS32EV400 programmable quad equalizer provides compensation for transmission medium losses and reduces the medium-induced deterministic jitter for four NRZ data channels. The DS32EV400 is optimized for operation up to 3.2 Gbps for both cables and FR4 traces. Each equalizer channel has eight levels of input equalization that can be programmed by three control pins, or individually through a Serial Management Bus (SMBus) interface. The device equalizes up to 14 dB of loss at 3.2 Gbps. The equalizer supports both AC and DC-coupled data paths for long run length data patterns such as PRBS-31, and balanced codes such as 8b/10b. The device uses differential current-mode logic (CML) inputs and outputs. Each channel has an independent signal detect output and independent enable input. The SD output maybe tied to the EN to automatically control the power up and down of the channel. The DS32EV400 can be used in a variety of applications that include DisplayPort, XAUI, InfiniBand and other high-speed data transmission applications. The DS32EV400 is available in a 7 mm x 7 mm 48-pin leadless LLP package. Power is supplied from either a 2.5V or 3.3V supply. Applications • DisplayPort • XAUI • InfiniBand • Other 8b10b Applications

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Typical Application *click for larger image App Diagram	Block Diagram *click for larger image Figure 8
Typical Performance *click for larger image Figure 12

Datasheet

Title		Size	Date	Other Language
	DS32EV400 DisplayPort Quad Equalizer	1016 Kbytes	19-Oct-09

Featured Application Notes

Title		Size	Date	Other Language
	AN-1979: Application Note 1979 LVDS Timing DS32ELX0421 and DS32ELX0124 Serializers and Deserializers	146 Kbytes	2-Jul-09
	AN-1887: Application Note 1887 Expanding the Payload with National’s FPGA-Link DS32ELX0421 and DS32ELX0124 Serializer and Deserializer	122 Kbytes	12-Sep-08

More Application Notes

Title		Size	Date	Other Language
	AN-903: Application Note 903 A Comparison of Differential Termination Techniques	196 Kbytes	2-Oct-02
	AN-967: Application Note 967 LocalTalk Physical Layer Alternatives	58 Kbytes	5-Oct-98

Design Tools

Title	Size	Date
3.2 Gbps Quad Equalizer Board User Guide	2481 Kbytes	9-Oct-2007
Extend DisplayPort Cable Reach with an Active Equalizer	1814 Kbytes	17-Jul-2009

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS32EV400SQ	BICMOS8B+	0	1152	0	0	743900	5	211083656
DS32EV400SQX	BICMOS8B+	0	1152	0	0	743900	5	211083656

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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