upd178016 Renesas Electronics Corporation., upd178016 Datasheet - Page 35

• Manufacturer Part Number: upd178016
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Momentary key
VOL DOWN
VOL UP
(2) TEA6320
Display (41 steps)
Attenuation [dB]
Display (9 steps)
Attenuation [dB]
Display (9 steps)
Attenuation [dB]
TEA6320 can be used when initial setting diode VOLSEL = 1.
(a) Volume
(b) Bass
(c) Treble
These keys are valid during normal/volume display.
The electronic volume control function becomes valid when the key is pressed, and the volume is
incremented or decremented in units of 2 [dB]. When the key is held down for about 0.5 seconds,
the volume is successively incremented or decremented at a rate of 2 [dB] every 0.1 seconds, until
the key is released.
The initial value when the power is first applied is VOL 22 (-24 [dB]).
The bass control function is valid only in bass display mode.
This function becomes valid as soon as either of these keys is pressed, and the bass is
incremented or decremented in units of 3 [dB].
When the key is held down for about 0.5 seconds, the bass is successively incremented or
decremented at a rate of 3 [dB] every 0.3 seconds, until the key is released.
The initial value when the power is first applied is BAS 0 (0 [dB]).
The treble control function is valid only in treble display mode.
This function becomes valid as soon as either of these keys is pressed, and the treble is
incremented or decremented in units of 3 [dB].
When either key is held down for about 0.5 seconds, the treble is successively incremented or
decremented at a rate of 3 [dB] every 0.3 seconds, until the key is released.
The initial value when the power is first applied is TRE 0 (0 [dB]).
BAS - 4
-12
TRE - 4
-12
VOL 0
MUTE
BAS - 3
-9
TRE - 3
-9
Description
VOL 1
-66
...
...
...
...
VOL 2
-64
BAS 0
0
TRE 0
0
...
...
...
...
...
...
PD178016GC-051
8
9
9
VOL 39
BAS + 3
TRE + 3
10
12
12
VOL 40
BAS + 4
TRE + 4
35