Connections | 9
PIN#
NAME
TYPE
DESCRIPTION
RANGE
IMPEDANCE/NOTES
1
SDPWS
IN
PSU shutdown. Active HI
3,3V
DC
<V
IH
<12V
DC
1KΩ
2
READY 1
OUT
High when PWM is ON
3,3V
DC
<V
OH
<5V
DC
| 0V
DC
<V
OL
<1V
DC
47KΩ - external cap. needed (1nF min)
3
RESERVED
4
RESERVED
DO NOT CONNECT
5
GND
PWR
6
IN 1+
IN
Bal. IN (non-inverting)
5,5V
RMS
input for full output
Absolute MAX input= 8V
RMS
DIFF= 20KΩ / CMODE= 20KΩ (bal)
Unbal. IN ( non-inv. p7 to GND)
20KΩ (unbal)
7
IN 1-
IN
Bal. IN (inverting)
DIFF= 20KΩ / CMODE= 20KΩ KΩ (bal)
Unbal. IN (inv. p6 to GND)
10KΩ (unbal)
8
GND
PWR
9
VOUTMON
OUT
Output voltage monitor
0-8V
AC
(Scale factor= 20V/V)
4,5KΩ
10
PROTECT
OUT
Low when output is in protect
2V
DC
<V
OH
<10V
DC
| 0V
DC
<V
OL
<1V
DC
100KΩ
11
IOUTMON
OUT
Output current monitor
0,17V
DC
min - 1V
DC
max (Scale Factor = 40A/V)
4,5KΩ
12
TEMPMON
OUT
Output temperature monitor
0-5V
DC
(Scale factor)*
Temperature dependant (≈7KΩ @25°C)
13
+12V
DC
PWR
Reg12V
DC
supply
(+/-5%) MAX current (tot)= 0,5A
Protected with series Polyswitch
14
-12V
DC
PWR
Regulated -12V
DC
supply
(+/-5%) MAX current (tot)= 0,5A
Protected with series Polyswitch
15
MUTE
IN
HW mute (PWM off). Active LO
V
IL(max)
=0,2V
DC
| I
sink
=20mA
(min)
16
+VCCMON
OUT
Positive rail bus monitor
Scale factor= 20V/V
4,5KΩ
17
-VCCMON
OUT
Negative rail bus monitor
Scale factor= 20V/V
4,5KΩ
18
-VCCMON
OUT
Negative rail bus monitor
Scale factor= 20V/V
4,5KΩ
19
+VCCMON
OUT
Positive rail bus monitor
Scale factor= 20V/V
4,5KΩ
20
MUTE
IN
HW mute (PWM off). Active LO
Shorted to pin 15
21
-12V
DC
PWR
Regulated -12V
DC
supply
see pin 14
22
+12V
DC
PWR
Reg12V
DC
supply
see pin 13
23~33
RESERVED
34
SDPWS
IN
PSU shutdown. Active HI
see pin 1
*
11 : 7.PL21 pinout
