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Tai-1 Microelectronics
Preliminary
TMPA421DS
www.taimec.com.tw
/
www.class-d.com.tw
Rev.2.0
December 20, 2005
Copyright
©2005,Tai-1 Microelectronics Corp.
7
Gain0=Low,
Gain1=High
25
Gain0=High,
Gain1= Low
19
Vcc=9v
Gain0=Low,
Gain1= Low
15
Gain0=High,
Gain1= High
15
Gain0=Low,
Gain1=High
30
Gain0=High,
Gain1= Low
60
Zi
Input resistance ofBINN/BINP/RIN/LIN
Gain0=Low,
Gain1= Low
100
k
Ω
AC CHARACTERISTICS
TA=25。C, VCC=15V, RL=8Ω speaker (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
15V
15
12V
10
RL=4
Ω
9V
6.22
W
15V
14.5
12V
9.3
RL=6
Ω
9V
5.34
W
15V
12.7
12V
8
RL=8
Ω
9V
4.58
W
15V
7.65
12V
4.8
*PO(max)
Maximum continuous output power of
bass (r.m.s) at 1kHz
RL=16
Ω
9V
2.73
W
15V
6
12V
3.8
RL=4
Ω
9V
2.17
W
15V
4.6
12V
3.0
RL=6
Ω
9V
1.67
W
15V
3.75
12V
2.35
*PO(max)
Maximum continuous output power of
right/left channel (r.m.s) at 1kHz
RL=8
Ω
9V
1.34
W
Vn
Output noise
-70
dBV
SNR
Signal-to-noise ratio
Maximum output at THD+N＜0.5％,
f=1kHz
85
dB
Crosstalk Crosstalk SE→BTL
Gain0=Gain1=high, VCC=12V,
PO(SE)=2W, RL=8
Ω
-70
dB
Thermal trip point
145
。C
Thermal hysteresis
25
。C
For best performance, please refer to
http://www.taimec.com.tw/data/Tmpa421EVM/tmpa421dsEVM.pdf
for PCB layout.
*Important notice：More copper area and vias are required for high output power especially
when the total output power is higher than 15W.
PDF created with pdfFactory trial version www.pdffactory.com
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