TPA0233
2-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS278D – JANUARY 2000 – REVISED NOVEMBER 2002
TYPICAL CHARACTERISTICS
OUTPUT NOISE VOLTAGE
vs
FREQUENCY
1k
Vn – Output Noise Voltage –
µ
V RMS
Vn – Output Noise Voltage –
µ
V RMS
VDD = 5 V
RL = 8
Ω
Mode = Mono
AV = 2.5 dB
100
1k
VDD = 5 V
RL = 32
Ω
Mode = Stereo
AV = 2 dB
100
OUTPUT NOISE VOLTAGE
vs
FREQUENCY
10
10
1
20
100
1k
f – Frequency – Hz
10k 20k
1
20
100
1k
f – Frequency – Hz
10k 20k
Figure 18
CLOSED LOOP RESPONSE
30
20
10
0
Phase
–10
–20
–30
–40
–50
10
0°
VDD = 5 V
RL = 4
Ω
Mode = Mono
AV = 8 dB
Figure 19
180°
135°
Gain
90°
45°
Phase
Gain – dB
–45°
–90°
–135°
–180°
1M
100
1k
10k
100k
f – Frequency – Hz
Figure 20
10
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
