ST7LNB1Y0 datasheet(10/36 Pages) STMICROELECTRONICS

tên linh kiện	ST7LNB1Y0

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Functional description

ST7LNB1Y0

10/36

Functional description

3.1

ST7LNB1Y0 applications

The ST7LNB1Y0 is intended to be used in different LNB switcher applications supporting

SaTCRs.

Three main types of applications could be distinguished (see Table 4).

An EEPROM parameter will be used for configuring the ST7LNB1Y0 for a particular

application type (refer to Section 4 for more details on how to program the EEPROM

parameter).

Figure 5.

SaTCR control block diagram

Figure 6.

SaTCR control and legacy (standard RF band)

Table 4.

Application types

Num

Application type

Description

SaTCR control(1) (see Figure 5)

This application could support up to 8 RF feeds. (applications 1 and 2 are limited to 4 RF feeds).

– Control through I2C of up to 8 SaTCRs

SaTCR and legacy (standard RF band)

(see Figure 6)

– The ST7LNB1Y0 controls through I2C up to 4

SaTCRs

– Control of a legacy matrix using up to 4 pins

SaTCR and legacy (wide RF band)

(see Figure 7)

– Control though I2C of up to 6 SaTCRs + legacy

– Control of a dedicated SaTCR for the legacy

support

SaTCR1

Matrix

SaTCR8

DiSEqC-ST

SaTCRx

DRX2

DiSEqC-ST

DRX1

ST7LNB1Y0

SaTCR1

Matrix

SaTCR4

DiSEqC 1.0

DRX1

DRX2

MAT[1 to 4]

DiSEqC-ST

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