NAD M55 - H-Power Driver Circuit Diagram

/'0
&/6B6:
/07B6:
&/6B6:
231B6:
231B6:
/07B6:
9&
9&
/'0
63'/
3*1'
;63087(
;)76087(
9&
9&
/'0
/'563'
76'0
/'0
63:0
63:0
9& 9&
FAIRCHILD
IN1+
1
IN1-
2
OUT1
3
IN2+
4
IN2-
5
GND
6
GND
7
OUT2
8
IN3+
9
IN3-
10
OUT3
11
IN4+
12
IN4-
13
OUT4
14
CTL
15
FWD
16
REV
17
GND
18
GND
19
SGND
20
MUTE123
21
MUTE4
22
TSD-M
23
PVCC2
24
DO5-
25
DO5+
26
DO4-
27
DO4+
28
DO3-
29
GND
30
GND
31
DO3+
32
DO2-
33
DO2+
34
DO1-
35
DO1+
36
PVCC1
37
PS
38
OPOUT2
39
OPIN2-
40
OPIN2+
41
GND
42
GND
43
VREF
44
SVCC
45
OPOUT
46
OPIN-
47
OPIN+
48
,&
)$1
& X)
& S)
& X)
& X)
& X)
& X)
&
X)
& S)
& X)
& X)
5 .
5 .
5 .
5 .
5 .
5 .
5 .
5 .
5 .
5 .
5 .
5 .
12
&
X)9
1 2
&
X)9
1 2
&
X)9
A5V
PGND
DGND
AGND
P5V
AGND
DGND
A3.3V
SLD
$9
'9
IN
3
GND
1
OUT
2
TAB
4
,& /003;
& X)
& X)
/
3&%&RLO
D1.8V
A5V
SLED
TSCON
FSCON
SPWM1
LDM1 LDM2
TSD-M
XSPMUTE
XFTSMUTE
LMT_SW
CLS_SW
OPN_SW
6/(' 76&21 )6&21 63:0
SPWM2
63:0
LDRSPD
/'563'
SPEED_SP
63(('B63
5 .
6/
5 .
6/
5 .
63
5 .
63 '*1'
5
.
5 .
F+
F-
5
.
T-
T+
&
X)
& X)
5 .
IN
3
GND
1
OUT
2
TAB
4
,& /003;
IN
3
GND
1
OUT
2
TAB
4
,& /003;
D3.3V A3.3V
/
3&%&RLO
& X) & X) & X)
& X) & X)
To RF Block
To DSP Block
VC16
9&
DGND
DGND
DGND
D3.3V A3.3V
P8V
PGND
P8VP5V
& X)
D2.5V D3.3V
To DSD Block
5 .
5 .
63(('B63
AGND
$*1'
*5 5
*5
5
P5V
PGND
5 1&
5
1&
A:R311 R474 B:R477 R478
AGNDDGND
D3.3V A3.3V
D2.5V D3.3V
A3.3V D3.3V
5 1&
5 5
1
1
2
2
3
3
4
4
5
5
6
6
CN19 CON6
1
1
2
2
3
3
4
4
5
5
CN20 CON5
5 1&
5 5
A: R1 R2 B:R3 R4
PGND
PGND
VC16
4.H-POWER & DRIVER CIRCUIT DIAGRAM
3-34
*Note; R477 and R478 are 4.7Ohm when using new XY-A33 Loader.