STV82X8 datasheet(88/157 Pages) STMICROELECTRONICS

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STV82x8

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PEAK_R

Peak Detector Right Channel

PEAK_L_R

Peak Detector Left Minus Right Channel

Address: 9Dh

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

OVERLOAD_R

PEAK_R[6:0] (S)

Bit Name

Reset

Function

OVERLOAD_R

This bit is set to 1 by the DSP when the Right peak detector reaches its maximum value (0x7F).

It can be reset to 0.

PEAK_R[6:0]

000 0000

Displays the Absolute Peak Level of the Right channel of the audio source selected. The measured

value is updated continuously every 64 ms. The range varies linearly from the full scale (0 dB)

down to 1/256 of the full scale (-48 dB).

000 0000:<-36dBFS

000 1111:-18dBFS

...

000 0001:-36dBFS

001 1111:-12dBFS

...

000 0011:-30dBFS

011 1111:-6dBFS

...

000 0111:-24dBFS

111 1111:0dBFS

...

Address: 9Eh

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

OVERLOAD_L

PEAK_L_R[6:0] (S)

Bit Name

Reset

Function

OVERLOAD_L_R

This bit is set to 1 by the DSP when the “Left-Right” peak detector reaches its maximum value

(0x7F).

It can be reset to 0.

PEAK_L_R[6:0]

000 0000

Displays the Difference between L and R (L - R) channels for the audio source selected:

000 0000:<-36dBFS

000 1111:-18dBFS

...

000 0001:-36dBFS

001 1111:-12dBFS

...

000 0011:-30dBFS

011 1111:-6dBFS

...

000 0111:-24dBFS

111 1111:0dBFS

...

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