Datasheet

>75kW

BUSHold

SN65LVDS315

SLLS881F –DECEMBER 2007–REVISED SEPTEMBER 2012

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APPLICATION INFORMATION

RECEIVER TERMINATION REQUIREMENT

The SN65LVDS315 outputs two differential lanes that must be specially terminated near the CSI-1 receiver

device. As shown in Figure 26, place two resistors and one capacitor in each lane (within ±20% to the values

shown). There are two possible implementations, based on whether the termination inside the receiver device

can be disabled. If it can be disabled, place the components as close to the receiver as possible. This RC filter is

a requirement that adds stability to the common mode voltage.

Figure 26. CSI-1 Receiver Device Termination

PREVENTING CONTROL INPUTS FROM INCREASED LEAKAGE CURRENTS

To ensure the lowest possible leakage current during

standby or power down, all inputs must be held static.

Any kind of input switching will cause increased

leakage current. Hold inputs TXEN and MODE either

at V

or V

. The LVDS315 incorporates a bus-hold

feature on the D[0:7] inputs, DCLK, VS, and HS. This

feature ensures that the input-stage leakage current

is minimized during times when the camera output is

in a high impedance state. Inputs with the bus-hold

feature can be left open without the need of an

external pullup or pulldown. This feature minimizes

the power consumption of standby and power down

modes in particular.

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