Ntsc pal video decoder circuit, Uses the adv7180 multi-format sdtv video decoder, One 10-bit adc, 4x over-sampling for cvbs – Altera LCD Multimedia HSMC User Manual

Page 33: Supports composite video (cvbs) rca jack input, Hc_td_hs, Td_hs

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2–25

Altera Corporation

LCD Multimedia HSMC

August 2008

Interfaces/ Connectors

Figure 2–14

shows the Video Decoder interface schematic.

Figure 2–14. Video Decoder Interface Schematic

NTSC PAL Video Decoder Circuit

Uses the ADV7180 Multi-format SDTV Video Decoder

Supports worldwide NTSC/PAL/SECAM color demodulation

One 10-bit ADC, 4X over-sampling for CVBS

Supports Composite Video (CVBS) RCA jack input

Supports digital output formats: 8-bit ITU-R BT.656 YCrCb 4:2:2

HC_TD_HS

86

H13

T11

TD_HS

39

Video Decoder H_SYNC

Notes:

(1)

These signals do not go through the MAX II chip. They pass through the MAX3378 level translator chip, U10.

Table 2–18. Video Decoder Pinout with HSMC Connector

HSMC Connector

MAX II

Video Decoder

Signal Name

Pin

No.

HSMC

Connector

Side Pin

Device

Side Pin

Signal Name

Pin

No.

Description

28MHz

28MHz

CVBS1_IN

TD_D0
TD_D1
TD_D2
TD_D3
TD_D4
TD_D5
TD_D6
TD_D7

TD_D[0..7]

27MHZ

TD_HS

TD_VS

I2C_SDAT

I2C_SCLK

TD_RESET

VCC33

V_AGND

AV_VCC18

VCC18

VCC33

PV_VCC18

V_AGND

VCC33

I2C ADDRESS IS 0x40

R64

36

R64

36

R67

120

R67

120

RN2

47

RN2

47

1

2

3

4

5

6

7

8

9

10
11
12
13
14
15
16

C47

10N

C47

10N

BC38

0.1U

BC38

0.1U

U8

ADV7180

U8

ADV7180

HS

39

DG

ND

3

XTAL1

12

XTAL

13

DV

DD

14

DG

ND

35

P1

16

P0

17

P4

8

P3

9

P2

10

LLC

11

P5

7

P6

6

P7

5

INTRQ

38

DV

DDI

O

1

DV

DDI

O

4

DG

ND

15

SFL

2

PWRDWN

18

PV

D

D

20

AG

N

D

21

DG

ND

40

AIN1

23

AIN2

29

AG

N

D

24

TEST_0

22

VREFP

25

AV

D

D

27

AG

N

D

28

VREFN

26

AIN3

30

RESET

31

ALSB

32

SDATA

33

SCLK

34

DV

DD

36

VS/FIELD

37

ELPF

19

E

XPO

SE

D

41

R63
1.74K

R63
1.74K

J11

RCA JACK

J11

RCA JACK

R65

39

R65

39

C49

0.1U

C49

0.1U

C50

0.1U

C50

0.1U

C48

0.1U

C48

0.1U

C51

0.1U

C51

0.1U

Y3

28.63636MHz

Y3

28.63636MHz

VCC

4

OUT

3

GND

2

EN

1

R66

120

R66

120

C52

0.1U

C52

0.1U

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