參數(shù)資料
型號: TDA8929T/N1,118
廠商: NXP SEMICONDUCTORS
元件分類: 音頻/視頻放大
英文描述: 2 CHANNEL, AUDIO AMPLIFIER, PDSO24
封裝: PLASTIC, SO-24
文件頁數(shù): 13/36頁
文件大?。?/td> 479K
代理商: TDA8929T/N1,118
2001
Dec
11
20
Philips
Semiconductors
Preliminar
y
specication
Controller
class-D
audio
amplier
TD
A8929T
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handbook,
full
pagewidth
MLD633
39 k
R19
39 k
R7
10 k
220 nF
C2
R20
1 k
R10
Sumida 33
H
CDRH127-330
L4
Sumida 33
H
CDRH127-330
L2
GND
220 nF
C44
220 nF
C1
3
6
17
PWM2
5
4
8
9
10
12
15
n.c.
1
1 nF
C29
input 2
input 1
J5
J6
D1
(5.6 V)
D2
(7.5 V)
IN1
+
IN1
GND
2
11
SGND1
SGND2
S1
VSSA
VSS1
VSS2
VDDA
VDD2
VDD1
GND
1
2
1
2
1
2
QGND
OUT1
OUT1
+
OUT1
+
OUT2
OUT2
OUT2
+
BOOT2
BOOT1
OUT1
OUT2
VDDD
VDD1
VDD2
VSS2
VSS1
VDDD
VSSD
VSSA VSSD
27 k
R1
7
220 nF
C3
OSC
POWERUP
VSSA
220 nF
C5
MODE
VDDA
R24
200 k
VDDD
on
mute
off
U2
TDA8929T
CONTROLLER
C22
330 pF
C27
470 nF
C4
220 nF
C7
220 nF
C14
470 nF
C18
1 nF
C19
1 nF
C20
1 nF
C21
1 nF
C16
470 nF
C6
220 nF
C9
15 nF
C8
15 nF
C43
180 pF
IN2
+
IN2
R6
10 k
C26
470 nF
R4
10 k
1 nF
C28
C24
470 nF
R5
10 k
J3
J1
QGND
inputs
outputs
power supply
mode select
J4
J2
VSS
C25
470 nF
C23
330 pF
R11
5.6
C10
560 pF
VSSD
VDDD VSSD
R12
5.6
R13
5.6
R14
5.6
C11
560 pF
C12
560 pF
C13
560 pF
R22
9.1 k
VSSD
VSSA
VDDA
VDDD
C31
1 nF
C30
1 nF
C33
220 nF
C35
1500
F
(35 V)
R21
10 k
C32
220 nF
C34
1500
F
(35 V)
C38
220 nF
C39
220 nF
C41
47
F
(35 V)
C36
220 nF
C37
220 nF
C40
47
F
(35 V)
GND
QGND
bead
L6
L5
bead
L7
bead
GND
VDD
VSS
+25 V
25 V
1
2
3
13
SW2
14
REL2
16
EN2
SW2
REL2
EN2
21
PWM1
23
SW1
24
15
9
3
U1
TDA8926J
or
TDA8927J
POWER STAGE
17
16
14
4
2
1
8
10
13
5
6
7
11
12
REL1
20
EN1
SW1
REL1
EN1
19
STAB
18
VSSD
22
DIAGCUR
DIAG
R16
24
R15
24
4 or 8
SE
4 or 8
SE
8
BTL
C17
220 nF
C15
220 nF
Fig.12 Two-chip class-D audio amplifier application diagram for TDA8926J or TDA8927J and TDA8929T.
R21 and R22 are only necessary in BTL applications with asymmetrical supply.
BTL: remove R6, R7, C23, C26 and C27 and close J5 and J6.
C22 and C23 influence the low-pass frequency response and should be tuned with the real load (loudspeaker).
Inputs floating or inputs referenced to QGND (close J1 and J4) or referenced to VSS (close J2 and J3) for an input signal ground reference.
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