M62495AFP

Rev.1.00, Jul.24.2003, page 5 of 11

Control Signals Specification

(1) Wave form

t

or

t

WL

(CLOCK,

DATA,

STROBE)

Dn+1

Dn+0

Dn+8

2.5V

0V

1.25V

2.5V

DATA:L

DATA:H

Threshold of the internal

STROBE.

Threshold of the internal

DATA(H/L)

H

M

L

Dn+9

t

WH

t

WH

Threshold of

the internal CLOCK.

The internal DATA latch at the falling edges of this clock signal.

t

WH

(2) Voltage control signal

Limits

Digital input signal

Condition

min.

typ.

max.

Unit

L signal

L

VDD = 2.5 V, VSS = –2.5 V

GND

—

0.4

V

M signal

M

VDD = 2.5 V, VSS = –2.5 V

1.0

1.25

(VDD/2)

1.5

H signal

H

VDD = 2.5 V, VSS = –2.5 V

2.1

—

VDD

(3) Timing control signal

Limits

Symbol

Parameter

min

typ

max

Unit

Cycle time of digital signal

8

µsec

Pulse width of digital signal (“H”level)

3.6



Pulse width of digital signal (“L”level)

3.6



Rise time of digital signal



0.4

Fall time of digital signal



0.4

(4) Control signal example (Refer to page 6 on the control data)

An example of the mode control

INPUT

:INA

STEREO,VOLUME :0dB

BASS

:18dB

TREBLE

:6dB

RECONT

:ON

MUTE

:OFF

D02 D12 D22D32 D42 D52 D62 D72 D82 D92

D01 D11 D21 D31 D41 D51 D61 D71 D81 D91STROBE

2.5V

STROBE

D'01

(LSB)

(MSB)

0V