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NXP Semiconductors

Product specification

Economy audio CODEC for MiniDisc (MD) home stereo and portable applications

UDA1341TS

7.21.4

DATA1 CONTROL

Table 33 Data transfer of type ‘DATA1’

BIT 5

BIT 4

BIT 3

BIT 2

PL5

PL4

PL3

PL2

BIT 1

BIT 0

PL1

PL0

peak level value (6 bits)

READ-OUT DATA

0

0

0

0

0

0

−∞

0

0

0

0

0

1

n.a.

0

0

0

0

1

0

n.a.

0

0

0

0

1

1

90.31

0

0

0

1

0

0

n.a.

0

0

0

1

0

1

n.a.

0

0

0

1

1

0

n.a.

0

0

0

1

1

1

84.29

:

:

:

:

:

:

:

0

1

0

0

1

1

note 2

0

1

0

1

0

0

note 3

:

:

:

:

:

:

:

1

1

1

1

0

1

2.87

1

1

1

1

1

0

1.48

1

1

1

1

1

1

0.00

Notes

1.

Peak value (dB) = (Peak level 63.5) × 5 × log 2.

2.

11 × log 2 For peak data >010011, the error in the peak value is <------------------------- 4

3.

For peak data <010100, the error is larger due to limited bit length.

A 6-bit value to indicate the peak level value of the playback data. The largest value of the left and right channel data in the playback signal path is held since the last read-out of the microcontroller.

Table 34 Peak level read-out data

PL5

PL4

PL3

PL2

PL1

7.21.4.1

Peak level value

PL0

PEAK VALUE(1) (dB)

2002 May 16

21

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