CMX649 Ver la hoja de datos (PDF) - CML Microsystems Plc

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componentes Descripción

Fabricante

CMX649

ADM Codec

CML Microsystems Plc 

ADM Codec

CMX649

DECODER

OUT

PCM

OUTPUT

REG $D6

PCM

INPUT

REG $D7

ESTIMATOR INTEGRATORS

1st

2nd

+

DECODE

SETUP

REG $D0

ADM CTL

REG $D1

OFFSET NULLING

REGS $D3 & $D5

PCM TO ADM TRANSCODE FEEDBACK

PROGRAMMABLE

x

STEP SIZE

CONTROL

DELAY

REGISTER

ADM

INPUT

REG $D8

ADM

OUTPUT

REG $DA

LINEAR

PCM IN

ADM IN

Figure 6 PCM Decoding

5.1.3 Transcoding with the Encoder and Decoder

INPUT

+

-

ENCODER FEEDBACK

PCM

OUTPUT

REG $E6

PCM TO ADM TRANSCODE FEEDBACK

OFFSET NULLING

REGS $E3 & $E5

+

ENCODE

SETUP

REG $E0

ADM CTL

REG $E1

ADM

INPUT

REG $E8

DELAY

REGISTER

PCM

INPUT

REG $E7

1st

2nd

x

ESTIMATOR INTEGRATORS

LINEAR

PCM IN

PROGRAMMABLE

STEP SIZE

CONTROL

LINEAR

PCM OUT

ADM

OUTPUT

REG $EA

Figure 7 PCM to ADM transcoding with Encoder

ADM OUT

(note that the decoder also can be configured to do this function and in this example

all data is read and written via C-BUS registers $EA ($DA) and $E7 ($D7) respectively (for decoder))

DECODER

OUT

PCM

OUTPUT

REG $D6

PCM

INPUT

REG $D7

ESTIMATOR INTEGRATORS

1st

2nd

+

DECODE

SETUP

REG $D0

ADM CTL

REG $D1

OFFSET NULLING

REGS $D3 & $D5

PCM TO ADM TRANSCODE FEEDBACK

PROGRAMMABLE

x

STEP SIZE

CONTROL

DELAY

REGISTER

ADM

INPUT

REG $D8

ADM

OUTPUT

REG $DA

LINEAR

PCM IN

ADM IN

Figure 8 ADM to PCM transcoding with Decoder

(note that the encoder can also be configured to do this function and in this example

all data is read and written via C-BUS registers $D6 ($E6) and $D8 ($E8) respectively (for encoder))

© 2003 CML Microsystems Plc

8

D/649/2

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