19
D-EJ885
• IC Block Diagrams
IC301
TA2152FN (EL)
+
–
24
OUT ADJ
23
BIAS IN
22
RF IN
21
C-AMP SW
20
GND
19
BIAS OUT
18
BEEP IN
17
MUTE SW
16
PW SW
15
MUTE TC
14
VCC1
13
INB
1
NC
2
NC
3
BEEP OUTB
4
OUTB
5
EQB
6
OUTC
7
PW GND
8
EQA
9
OUTA
10
BEEP OUTA
11
VCC2
12
INA
+
–
BIAS
C-AMP SW
BEEP
PW/MUTE SW
PWA
PWC
PWB
IC404
TB2127AFN (EL)
+
–
CONTROL
+
–
+
–
+
–
TRIANGULAR
WAVE
GENERATING
INTERFACE
PRE-DRIVER
VC
1
SYNC
2
XBRK
3
FG
4
VC
5
DGND
6
XRST
7
DATA
8
XLAT
9
CLK
10
VDU
11
U
12
PGUV
24 PWM
23 APWM
22 AGND
21 VG
20 COM
19 UI
18 VI
17 WI
16 PGW
15 W
14 VDVW
13 V
