DS40MB200 Series

Dual 4.0-Gbps 2:1/1:2 CML mux/buffer with transmit pre-emphasis and receive equalization

Catalog

Dual 4.0-Gbps 2:1/1:2 CML mux/buffer with transmit pre-emphasis and receive equalization

Part	Type	Data Rate (Max)	Number of Channels [custom]	Number of Channels [custom]	Output	Input	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Supplier Device Package	Signal Conditioning	Voltage - Supply [Max]	Voltage - Supply [Min]	Delay Time
Texas Instruments DS40MB200SQ/NOPB	Buffer Multiplexer	4 Gbps	2 x 1:2	2:1	CML	CML	48-WFQFN Exposed Pad	85 °C	-40 °C	Surface Mount	48-WQFN (7x7)	Input Equalization Output Pre-Emphasis	3.465 V	3.135 V	0.5 ns

Catalog

Dual 4.0-Gbps 2:1/1:2 CML mux/buffer with transmit pre-emphasis and receive equalization

Key Features

• 1-Gbps to 4-Gbps Low Jitter OperationFixed Input EqualizationProgrammable Output Pre-EmphasisIndependent Switch and Line Side Pre-Emphasis ControlsProgrammable Switch-Side Loopback ModeOn-Chip Terminations3.3-V SupplyESD Rating of 6-kV HBM48-leadless WQFN Package (7 mm × 7 mm)0°C to +85°C Operating Temperature Range1-Gbps to 4-Gbps Low Jitter OperationFixed Input EqualizationProgrammable Output Pre-EmphasisIndependent Switch and Line Side Pre-Emphasis ControlsProgrammable Switch-Side Loopback ModeOn-Chip Terminations3.3-V SupplyESD Rating of 6-kV HBM48-leadless WQFN Package (7 mm × 7 mm)0°C to +85°C Operating Temperature Range

Description

The DS40MB200 device is a dual signal conditioning 2:1 multiplexer (MUX) and 1:2 fan-out buffer designed for use in backplane-redundancy applications. Signal conditioning features include continuous time linear equalization (CTLE) and programmable output pre-emphasis, extending data communication in FR4 backplanes at rates up to 4 Gbps. Each input stage has a fixed equalizer to reduce intersymbol interference distortion from board traces. All output drivers have four selectable steps of pre-emphasis to compensate for transmission losses from long FR4 backplanes and reduce deterministic jitter. The pre-emphasis levels can be independently controlled for the line-side and switch-side drivers. The internal loopback paths from switch-side input to switch-side output enable at-speed system testing. All receiver inputs are internally terminated with 100-Ω differential terminating resistors. All drivers are internally terminated with 50 Ω to VCC. The DS40MB200 device is a dual signal conditioning 2:1 multiplexer (MUX) and 1:2 fan-out buffer designed for use in backplane-redundancy applications. Signal conditioning features include continuous time linear equalization (CTLE) and programmable output pre-emphasis, extending data communication in FR4 backplanes at rates up to 4 Gbps. Each input stage has a fixed equalizer to reduce intersymbol interference distortion from board traces. All output drivers have four selectable steps of pre-emphasis to compensate for transmission losses from long FR4 backplanes and reduce deterministic jitter. The pre-emphasis levels can be independently controlled for the line-side and switch-side drivers. The internal loopback paths from switch-side input to switch-side output enable at-speed system testing. All receiver inputs are internally terminated with 100-Ω differential terminating resistors. All drivers are internally terminated with 50 Ω to VCC.