STV8247T datasheet(82/149 Pages) STMICROELECTRONICS

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STV82x7

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L/L’ and DK/K1/K2/K3 standard cannot be discriminated in Automatic Standard Recognition Search

mode because the same frequency is used for the mono IF carrier.

AUTOSTD_STANDARD_DETECTAuto Standard Check Standard Register

Note:

Autostandard is off when all mono standards are disabled (LDK_SCK = 0, I_SCK = 0, BG_SCK = 0

and MN_SCK = 0).

AUTOSTD_STEREO_DETECT Auto Standard Check Stereo Register

Address: 8Bh

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

NICAM_C4_O

NICAM_GAP_

MODE

NICAM_MON

O_IN

LDK_SCK

I_SCK

BG_SCK

MN_SCK

Bit Name

Reset

Function

NICAM_C4_OFF

0: Autostandard will consider the C4 bit for MONO backup

1: Autostandard will ignore the C4 bit for MONO backup

NICAM_GAP_MODE

0: NICAM, fast search

1: NICAM, slow search (no perturbations on LEFT channel in search mode)

NICAM_MONO_IN

0: the MONO backup for NICAM comes from internal demodulator

1: the MONO backup for NICAM comes from MONO input

LDK_SCK

L/L’ or D/K Mono Standard Enable

0: Disabled

1: Enabled

I_SCK

I Mono Standard Enable

0: Disabled

1: Enabled

BG_SCK

B/G Mono Standard Enable

0: Disabled

1: Enabled

MN_SCK

M/N Mono Standard Enable

0: Disabled

1: Enabled

Address: 8Ch

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

LDK_ZWT3

LDK_ZWT2

LDK_ZWT1

LDK_NIC

I_NIC

BG_ZWT

BG_NIC

MN_ZWT

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