ML7055 Просмотр технического описания (PDF) - Oki Electric Industry

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ML7055

Bluetooth Baseband Controller IC

Oki Electric Industry 

OKI Semiconductor

FEDL7055-02

ML7055

PCM-CVSD Transcoder Block

• Application side I/O:

- PCM Codec

• Application-side format:

- PCM linear (8, 14, 16 bits/sample, 8 kHz sampling frequency)/A-law/µ-law

• Bluetooth-side format:

- CVSD/A-law/µ-law

• All combinations of the above conversions are supported

• PCMSYNC/PCMCLK I/O can be switched (initial setting: input)

• Timing in Short Mode and in PCMCLK and PCMSYNC Output Mode

(For PCM data of 14 bits/sample, lower 2 bits of 16 bits are invalid.)

8 bits or 16 bits

PCMCLK(O)

64k/128kHz

PCMOUT

LSB

MSB

DATA

DATA

Data is output on the rising edge of CLK.

DATA

LSB

PCMIN

LSB

MSB

DATA

DATA

DATA

LSB

PCMSYNC(O)

Data is shifted in on the falling edge of CLK

125µs (8kHz)

MSB

DATA

MSB

DATA

• Timing in Short Mode and in PCMCLK and PCMSYNC Input Mode.

(For PCM data of 14 bits/sample, lower 2 bits of 16 bits are invalid.)

PCMCLK(I)

64k/128kHz

PCMOUT

PCMIN

PCMSYNC(I)

8 bits or 16 bits

LSB

MSB

DATA

DATA

Data is output on the rising edge of CLK.

DATA

LSB

LSB

MSB

DATA

DATA

DATA

LSB

Data is shifted in on the falling edge of CLK

125µs (8kHz)

MSB

DATA

MSB

DATA

14/30

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