GS2970A datasheet(61/150 Pages) SEMTECH

Part #	GS2970A

Description	3Gb/s, HD, SD SDI Receiver Complete with SMPTE Audio and Video Processing

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Manufacturer	SEMTECH [Semtech Corporation]

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61 / 150 page

GS2970A 3Gb/s, HD, SD SDI Receiver

Data Sheet

54244 - 2

September 2012

61 of 150

NOTE: In certain systems, due to greater ppm offsets in the crystal, the ‘M’ bit may not

assert properly. In such cases, bits 3:0 in Register 06Fh can be increased to a maximum

value of 4.

ITU-R

BT.656

(SD)

1440x576/50 (2:1) Or

dual link progressive)

x1

625

−

1440

1728

18h

625-line generic

x1

625

−−

1728

1Ah

Unknown

HD

SD/HD = 0

0

−−

−

1Dh

Unknown

SD

SD/HD = 1

x

1

−−

−

1Eh

Unknown

3G

SD/HD = 0

1

0

−−

−

3Ch

2K Standards (see 4.13.1 2K Support)

2048-2-

200xX

(4:2:2)

2048x1080/30 (1:1)

0

1125

1080

2048

2200

31h

2048x1080/25 (1:1)

0

1125

1080

2048

2640

32h

2048x1080/24 (1:1)

0

1125

1080

2048

2750

33h

2048x1080/60 (1:1)

1

0

1125

1080

2048

2200

37h

2048x1080/50 (1:1)

1

0

1125

1080

2048

2640

38h

2048x1080/48 (1:1)

1

0

1125

1080

2048

2750

39h

2048-2-

200X

(4:4:4)

2048x1080/30 (1:1)

1

0

1125

1080

2048

2200

34h

2048x1080/25 (1:1)

1

0

1125

1080

2048

2640

35h

2048x1080/24 (1:1)

1

0

1125

1080

2048

2750

36h

Non

SMPTE or

2048-2-

200xX

(4:2:2)

Level B

DS1 and

DS2

2048x1080/60 (2:1)

0 (1)

0

1125

540

2048

2200

3Dh

2048x1080/50 (2:1)

0 (1)

0

1125

540

2048

2640

3Eh

2048x1080/48 (2:1)

0 (1)

0

1125

540

2048

2750

3Fh

Non

SMPTE

Unknown 2K

x

0

−−

2048

−

3Ah

Notes:

1. The Line Numbers in brackets refer to version zero SMPTE 352M packet locations, if they are different from version 1.

2. The part may provide full or limited functionality with standards that are not included in this table. Please consult a

Semtech technical representative.

3. For SD-SDI streams, the device can report an incorrect M value when SMPTE-352M packets are present.

Table 4-11:Supported Video Standard Codes (Continued)

SMPTE

Standard

Active Video Area

RATE_

DET[1]

HD/3G

RATE_

DET[0]

SD/HD

Lines

per

Frame

Active

Lines per

Frame

Words

per

Active

Line

Words

per Line

VD_STD

[5:0]

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