SM8701BM

NIPPON PRECISION CIRCUITS—3

PIN DESCRIPTION

Number

Name

I/O

Description

1

MLEN/R2

1. Schmitt trigger input with pull-down resistor

Control signal input.

In serial mode: latch enable signal

In parallel mode: sampling rate select signal

2

P/S

Mode select signal.

L O W : serial mode, HIGH: parallel mode

3

V D D

–

5 V supply (Digital block)

4

G N D

–

Ground (Digital block)

5

X T O

O

Reference signal crystal oscillator element connection

6

XTI

I

Reference signal crystal oscillator element connection or external clock input

7

GNDP

–

Ground (PLL block)

8

VDDP

–

5 V supply (PLL block)

9

VDD3

–

3.3 V supply (output buffer)

1 0

M O

O

27 MHz fixed-frequency output

1 1

M O N

O

27 MHz fixed-frequency output (inver ted)

1 2

S O 1

O

33.8688 MHz fixed-frequency output

1 3

S O 4

O

768fs output

1 4

S O 2

O

256fs output

1 5

GNDO

–

Ground (output buffer)

1 6

VDDO

–

3.3 V supply (output buffer)

1 7

S O 3

O

384fs output

1 8

RSTN

2. Schmitt trigger input with pull-up resistor

L O W -level reset input

1 9

MDT/R0

Control signal input.

In serial mode: control data input signal

In parallel mode: sampling frequency select signal

2 0

MCK/R1

Control signal input.

In serial mode: clock signal

In parallel mode: sampling frequency select signal