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ADV601LC

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APPLYING THE ADV601LC

This section includes the following topics:

• Using the ADV601LC in computer applications

• Using the ADV601LC in standalone applications

• Configuring the host interface for 6- or 32-bit data paths

• Connecting the video interface to popular video encoders and

decoders

• Getting the most out of the ADV601LC

The following Analog Devices products should be considered in

ADV601LC designs:

• ADV7175/ADV7176—Digital YUV to analog composite

video encoder

• AD722—Analog RGB to analog composite video encoder

• AD1843—Audio codec with embedded video synchronization

• ADSP-21xx—Family of fixed-point digital signal processors

• AD8xxx—Family of video operational amplifiers

Using the ADV601LC in Computer Applications

Many key features of the ADV601LC were driven by the demand-

ing cost and performance requirements of computer applications.

The following ADV601LC features provide key advantages in

computer applications:

• Host Interface

The 512 double word FIFO provides necessary buffering of

compressed digital video to deal with PCI bus latency.

• Low Cost External DRAM

Unlike many other real-time compression solutions, the

ADV601LC does not require expensive external SRAM

transform buffers or VRAM frame stores.

D0–D7

D8–D15

D16–D23

D24–D31

A28

A29

A30

A31

DECODE1

DECODE2

VCLK

VDATA [0–7]

LLC

XTAL

SAA7111

27MHz PAL OR NTSC

ADR0

ADR1

DQ0–DQ7

DQ8–DQ15

DQ16–DQ23

DQ24–DQ31

STATS_R

LCODE

24.576MHz

XTAL

A0–A8

D0–D15

A0–A8

DQ1–DQ16

NOTE:

DECODE1 ASSERTS CS

~ ON THE

ADV601LC FOR HOST ADDRESSES

0X4000,0000 THROUGH

0X4000,0013

ADV601LC

HOST BUS

DRAM

(256K

16-BIT)

COMPOSITE VIDEO INPUT

VCLKO

TOSHIBA TC514265DJ/DZ/DFT-60

NEC

PD424210ALE-60

NEC

PD42S4210ALE-60

HITACHI

HM514265CJ-60

ANY DRAM USED WITH THE ADV601LC

MUST MEET THE MINIMUM SPECIFICATIONS

OUTLINED FOR THE HYPER MODE DRAMS

LISTED

FIFO_SRQ

FIFO_STP

FIFO_ERR

Y[0–7]

DECODE2 IS HOST SPECIFIC

BE0–BE1

BE2–BE3

HIRQ

ACK

RAS

CAS

RAS

CAS

WEL

WEH

Figure 13. A Suggested PC Application Design

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