GS2971A datasheet(11/152 Pages) SEMTECH

No de pièce	GS2971A

Description	3Gb/s, HD, SD SDI Receiver, with Integrated Adaptive Cable Equalizer

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Fabricant	SEMTECH [Semtech Corporation]

Site Internet	http://www.semtech.com

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11 / 152 page

GS2971A 3Gb/s, HD, SD SDI Receiver

Data Sheet

54311 - 2

September 2012

11 of 152

A9, A10, B8,

B9, B10,C8,

C9, C10, E9,

E10

DOUT18, 17, 19,

16, 15, 12, 14, 13,

10, 11

Output

PARALLEL DATA BUS

Please refer to the Output Logic parameters in the DC Electrical

Characteristics table for logic level threshold and compatibility.

20-bit mode

20bit/10bit = HIGH

SMPTE mode (SMPTE_BYPASS = HIGH

and DVB_ASI = LOW):

Luma data output for SD and HD data

rates; Data Stream 1 for 3G data rate

DVB-ASI mode (SMPTE_BYPASS = LOW

and DVB_ASI = HIGH):

Not defined

Data-Through mode (SMPTE_BYPASS =

LOW and DVB_ASI = LOW):

Data output

10-bit mode

20bit/10bit = LOW

SMPTE mode (SMPTE_BYPASS = HIGH

and DVB_ASI = LOW):

Multiplexed Luma/Chroma data output

for SD and HD data rates; Multiplexed

Data Stream 1&2 for 3G data rate

DVB-ASI mode (SMPTE_BYPASS = LOW

and DVB_ASI = HIGH):

8b/10b decoded DVB-ASI data

Data-Through mode (SMPTE_BYPASS =

LOW and DVB_ASI = LOW):

Data output

B1

A_VDD

Input Power

POWER pin for analog circuitry. Connect to 3.3V DC analog.

B2, C3, C4

PLL_VDD

Input Power

POWER pins for the Reclocker PLL. Connect to 1.2V DC analog.

B3, F2

RSV

These pins must be left unconnected.

B4

VCO_GND

Input Power

GND pin for the VCO. Connect to analog GND.

B7, D9, G9,

J7

IO_GND

Input Power

GND connection for digital I/O. Connect to digital GND.

C1, D1

SDI, SDI

Analog Input

Serial Digital Differential Input.

C2, D2, D3,

E3, F3, G2

A_GND

Input Power

GND pins for sensitive analog circuitry. Connect to analog GND.

Table 1-1:Pin Descriptions (Continued)

Number

Name

Timing

Type

Description

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