THS7360 datasheet(23/43 Pages) TI

23 / 43 page

External

Input/Output

Internal

Circuitry

75 W

S-VideoY'Out

CVBS

S-Video Y’

S-Video C’

Y'/G'

SD1OUT

SD2OUT

SD3OUT

DisableSD

GND

DisableSF

SF1OUT

SF2OUT

SF3OUT

BypassSF

SD1IN

SD2IN

SD3IN

S+

SF1IN

SF2IN

SF3IN

BypassSD

THS7360

Bypass

SDLPF

Bypass

SFLPF

P' /B'

CVBS

P' /R'

75 W

S-VideoC'Out

75 W

Y'/G'Out

75 W

P' /B'Out

75 W

P' /R'Out

75 W

+2.7Vto

+5V

DisableSF

DisableSD

THS7360

www.ti.com

SLOS674 – JUNE 2010

INPUT OVERVOLTAGE PROTECTION

These diodes provide moderate protection to input

overdrive voltages above and below the supplies as

The THS7360 is built using a very high-speed,

well. The protection diodes can typically support

complementary, bipolar CMOS process. The internal

30 mA of continuous current when overdriven.

junction breakdown voltages are relatively low for

these

very

small

geometry

devices.

These

TYPICAL CONFIGURATION AND VIDEO

breakdowns are reflected in the Absolute Maximum

TERMINOLOGY

Ratings table. All input and output device pins are

protected with internal ESD protection diodes to the

A typical application circuit using the THS7360 as a

power supplies, as shown in Figure 42.

video buffer is shown in Figure 43. It shows a DAC or

encoder driving the input channels of the THS7360.

One channel is a CVBS connection while two other

channels are for the S-Video Y’/C’ signals of an SD

video system. These signals can be NTSC, PAL, or

SECAM signals. The other three channels are the

component

video

Y’/P’B/P’R (sometimes labeled

Y’U’V’ or incorrectly labeled Y’/C’B/C’R) signals. These

signals are typically 480i, 576i, 480p, 576p, 720p,

1080i, or up to 1080p60 signals. Because the filters

can be bypassed, other formats such as R'G'B' video

up to QXGA or UWXGA can also be supported with

Figure 42. Internal ESD Protection

the THS7360.

(1) SF indicates selectable filter.

Figure 43. Typical Six-Channel System Inputs from DC-Coupled Encoder/DAC with DC-Coupled Line

Driving

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