CONTROL SIGNALS SPECIFICATION
Threshold of the internal
DATA(H/L)
Threshold of the internal
STROBE.
(1) Wave form
Dn+11
or
Dn+0
Dn+1
Dn+10
t
H
M
(CLOCK,
DATA,
2.5V
2.5V
1.25V
STROBE) L
t WH
0V
tWH
t WL
t
WH
DATA:H
DATA:L
tr
tf tr
Threshold of
the internal CLOCK.
tf
tr
The internal DATA latch at the falling edges of this clock signal.
(2) Voltage control signal
Limits
typ.
Digital input signal
L signal
Condition
Unit
min.
GND
1.0
max.
VDD=2.5V,VSS=-2.5V
VDD=2.5V,VSS=-2.5V
0.4
L
1.25
(VDD/2)
M signal
M
1.5
V
H signal
VDD
VDD=2.5V,VSS=-2.5V
H
2.1
(3) Timing control signal
Limits
Symbol
Unit
Parameter
typ
min
max
Cycle time of digital signal
t
4
cr
t
t
Pulse width of digital signal("H"level)
Pulse width of digital signal("L"level)
Rise time of digital signal
1.6
1.6
WH
WLC
usec
t r
t f
0.4
0.4
Fall time of digital signal
(4) Control signal example(Refer to page 6 on the control data)
An example of the mode control
VOL/TREBLE SHARE AMP GAIN:20dB
INPUT :INA,
VOLUME :0dB
MUTE :OFF
BBE EFFECT:High level(+3dB)
MODE:STEREO
BASS:18dB
TREBLE:6dB
RECOUT:ON(INE)
(MSB)
D111 D131
D01 D11D21D31 D41D51D61D71D81D91D101 D121
D112 D132
D02 D12 D22D32 D42D52D62D72D82D92D102 D122 STROBE
STROBE
2.5V
1.25V
0V
(GND)
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