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Tai-1 Microelectronics
Preliminary
TMPA208DS
www.taimec.com.tw
/
www.class-d.com.tw
Rev.1.0
June 27, 2006
Copyright
©2005,Tai-1 Microelectronics Corp.
5
OPERATING CHARACTERISTICS
TA=25。C, VDD=PVDD=5V, RL=8Ω speaker, Gain=18dB (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
f=1kHz, RL=3
Ω, stereo operation
2.5
W
f=1kHz, RL=4
Ω, stereo operation
2
W
PO
Output power per channel
(Limited by thermal condition)
f=1kHz, RL=8
Ω, stereo operation
1.25
W
THD+N
Total harmonic distortion plus noise
RL =8
Ω, PO=1.2W, f=1kHz
0.4％
Thermal trip point
150
C
。
Thermal hysteresis
20
C
。
Vn
Integrated noise floor
20 Hz to 20 kHz, inputs ac grounded
85
µVrms
SNR
Signal-to-noise ratio
VDD=AVDD=5V, PO=1W, RL=8Ω
95
dB
Crosstalk
Crosstalk between outputs
VDD=AVDD=5V, PO=1W RL=8Ω
-68
dB
VOLTAGE RANGE OF
“VOLUME” AT DIFFERENT VDD
VDD
MAX
MIN
5V
2.8V
0V
3.6V
1.9V
0V
3V
1.3V
0V
VOLTAGE GAIN AT TA=25。C, RL=8Ω
VDD=PVDD=5V
VOLTAGE GAIN
VOLTAGE of VOLUME
5V
18dB/-27dB
2.8V/0V
3.6V
18dB/-27dB
1.9V/0V
3V
16dB/-27dB
1.4V/0V
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