SN75LVDS83B

10MHz 至 135MHz、28 位 FlatLink™ LVDS 发送器/串行器

The FlatLink™ transmitter contains four 7-bit parallel-load serial-out shift registers, a 7X clock synthesizer, and five Low-Voltage Differential Signaling LVDS line drivers in a single integrated circuit. These functions allow 28 bits of single-ended LVTTL data to be synchronously transmitted over five balanced-pair conductors for receipt by a compatible receiver, such as the SN75LVDS82 and LCD panels with integrated LVDS receiver.

When transmitting, data bits D0 through D27 are each loaded into registers upon the edge of the input clock signal CLKIN. The rising or falling edge of the clock can be selected via the clock select CLKSEL pin. The frequency of CLKIN is multiplied seven times, and then used to unload the data registers in 7-bit slices and serially. The four serial streams and a phase-locked clock CLKOUT are then output to LVDS output drivers. The frequency of CLKOUT is the same as the input clock, CLKIN.

The SN75LVDS83B requires no external components and little or no control. The data bus appears the same at the input to the transmitter and output of the receiver with the data transmission transparent to the users. The only user intervention is selecting a clock rising edge by inputting a high level to CLKSEL or a falling edge with a low-level input, and the possible use of the Shutdown/Clear SHTDN. SHTDN is an active-low input to inhibit the clock, and shut off the LVDS output drivers for lower power consumption. A low-level on this signal clears all internal registers to a low-level.

The SN75LVDS83B is characterized for operation over ambient air temperatures of –10°C to 70°C.

Alternative device option: The SN75LVDS83A SLLS980 is an alternative to the SN75LVDS83B for clock frequency range of 10MHz-100MHz only. The SN75LVDS83A is available in the TSSOP package option only.

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LVDS Display Series Interfaces Directly to LCD

Display Panels With Integrated LVDS

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Package Options: 4.5-mm × 7-mm BGA,

and 8.1-mm × 14-mm TSSOP

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1.8-V Up to 3.3-V Tolerant Data Inputs to Connect

Directly to Low-Power, Low-Voltage Application and

Graphic Processors

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Transfer Rate up to 135 Mpps Mega Pixel Per Second;

Pixel Clock Frequency Range 10 MHz to 135 MHz

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Suited for Display Resolutions Ranging From HVGA

up to HD With Low EMI

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Operates From a Single 3.3-V Supply and 170 mW Typ.

at 75 MHz

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28 Data Channels Plus Clock in Low-Voltage TTL to 4

Data Channels Plus Clock Out Low-Voltage Differential

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Consumes Less Than 1 mW When Disabled

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Selectable Rising or Falling Clock Edge Triggered

Inputs

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ESD: 5-kV HBM

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Support Spread Spectrum Clocking SSC

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Compatible with all OMAP™ 2x, OMAP™ 3x, and

DaVinci™ Application Processors