KAC-PS1D/X1R
6
Pin No.
Pin Name
I/O
Application
Truth Value
Processing Operation Description
Table
35
ROTARY_CCW
I
Encoder pulse input
Detects pulse width
36~38
NC
O
Not used
Output L fixed
39
REF5V_OUT
O
Supplies to AVREF (pin 47)
Output H fixed
40,41
NC
O
Not used
Output L fixed
42
VFD_INH
O
Panel VFD driver INH
Driver output switching
43
VFD_CE
O
Panel VFD driver CE
Command control terminal of the driver
44
VFD_DATA_M
O
Panel VFD driver data line
µ
-com
→
driver input
45
VFD_DATA_S
I
Panel VFD driver data line
µ
-com
→
driver input
46
VFD_CLK
O
Panel VFD driver communication CLK
Communication clock
47
AVREF
-
DA REF voltage
Receives the reference voltage from pin 39.
48
AVSS
-
49
IMP_DET
I
Detects load IMP at SP terminal
Reads the impedance and turns on the limiter
when it is 1
Ω
load.
50
TEMP2
I
Temperature detection 1 (at output TR side)
Displays the temperature and overheat protection.
(For display and protection)
51
TEMP1
I
Temperature detection 1 (at power supply side)
Displays the temperature and overheat protection.
(For display and protection)
52
NC
O
Not used
Output L fixed
53
AD_V
I
Detects BU voltage (For display)
Displays the voltage and condition.
54
NC
O
Not used
Output L fixed
55
AD_I
I
Detects primary current (For display)
Converts into the current and displays current value.
56
MUTE1
O
Mute control of the amplifier input stage
L: MUTE1 ON, H: MUTE1 OFF, Initial condition “L”
57
NC
O
Not used
58~60
NC
O
Not used
Output L fixed
61
ATT1
O
Output signal level attenuation control
L: Output attenuation, Initial condition “L”
62
ATT2
O
Output signal level attenuation control
L: Output attenuation, Initial condition “L”
63
LIMIT
O
Limits the peak value of the D-class amplifier
w
Clips the audio signal quickly with “H”
input signal
64
DC_DET
I
Output DC OFFSET voltage detection
Enters into the voltage error protection operations.
Truth value table
q
FAN (Pin 5)
Calculated temperature based on the detected voltage at TMP_1 (pin 31)
Note
Lower than 35
°
C
Remains as L
In the case of “H” output, it recovers to “L” when the temperature
35
°
C or higher
H output
decreases to 30
°
C.
w
LIMIT (Pin 63)
Voltage detected at IMP_DET (pin 49)
Note
Lower than 3.8V
Remains as L
Recovers by P-CON OFF or RST.
3.8V or higher
H output
MICROCOMPUTER’S TERMINAL DESCRIPTION
