SM5849 datasheet(5/26 Pages) NPC

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SM5849AF

NIPPON PRECISION CIRCUITS—5

PIN DESCRIPTION

Number

Name

I/O1

Description

V D D

–

Supply voltage

Digital input signal

BCKI

Bit clock input

LRCI

W ord clock input

V S S

–

Ground

ICLK

System clock input

ICKSL

System clock select. 384fs clock when HIGH, and 256fs clock when LOW .

IFM1

Input format select

IFM2

1 0

IWL1

Input word length select

1 1

IWL2

1 2

N C

–

No connection (must be open)

1 3

N C

–

No connection (must be open)

1 4

N C

–

No connection

1 5

N C

–

No connection (must be open)

1 6

N C

–

No connection (must be open)

1 7

N C

–

No connection (must be open)

1 8

N C

–

No connection (must be open)

1 9

N C

–

No connection (must be open)

V S S

–

Ground

2 1

V D D

–

Supply voltage

2 2

DMUTE

Direct mute pin. Muting ON when HIGH.

2 3

MCOM

Microcontroller control select. Microcontroller control when HIGH.

MDT/FSI1

When MCON = HIGH: Microcontroller interface data input (MDT)

When MCON = LOW: Deemphasis ﬁlter fs select 1 (FSI1)

2 5

MCK/FSI2

When MCON = HIGH: Microcontroller interface clock (MCK)

When MCON = LOW: Deemphasis ﬁlter fs select 2 (FSI2)

2 6

MLEN/DEEM

When MCOM is HIGH: Microcontroller interface latch enable (MLEN)

When MCOM is LOW : Deemphasis function select (DEEM)

2 7

N C

–

No connection (must be open)

2 8

N C

–

No connection (must be open)

2 9

N C

–

No connection (must be open)

3 0

N C

–

No connection (must be open)

3 1

N C

–

No connection (must be open)

3 2

N C

–

No connection (must be open)

3 3

N C

–

No connection (must be open)

3 4

N C

–

No connection (must be open)

3 5

N C

–

No connection (must be open)

3 6

N C

–

No connection (must be open)

3 7

N C

–

No connection (must be open)

IFM1

IFM2

Data position

L O W

Right justiﬁe d

L O W

HIGH

Right justiﬁe d 1

1. Data is in LSB ﬁrst sequence

HIGH

L O W

Left justiﬁe d

HIGH

IIS

IWL1

IWL2

Data length

L O W

16 bits

L O W

HIGH

24 bits

HIGH

L O W

20 bits

HIGH

24 bits

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