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TPA2015D1 データシート(PDF) 6 Page - Texas Instruments

部品番号 TPA2015D1
部品情報  2 W Constant Output Power Class-D Audio Amplifier With Adaptive Boost Converter and Battery Tracking SpeakerGuard??AGC
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TPA2015D1 データシート(HTML) 6 Page - Texas Instruments

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IN+
IN–
+
VBAT
1 F
m
1 F
m
2.2 H
m
Load
OUT+
OUT–
Measurement
Output
TPA2015D1
Measurement
Input
+
+
10 F
m
22 F
m
Supply
GND
30kHz
Low-Pass
Filter
SW
PVDD
PVOUT
TPA2015D1
SLOS638 – MAY 2010
www.ti.com
OPERATING CHARACTERISTICS (continued)
VBAT= 3.6 V, TA = 25°C, RL = 8 Ω + 33 mH (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
fAUDIO = 20 Hz, CIN = 1 mF
–0.2
–0.1
0
Audio frequency passband ripple
dB
fAUDIO = 16 kHz, CIN = 1 mF
–0.2
–0.1
0
AUTOMATIC GAIN CONTROL
AGC gain range
0
20
dB
AGC gain step size
0.5
dB
AGC attack time (gain decrease)
0.026
ms/dB
AGC release time (gain increase)
1600
ms/dB
Limiter threshold voltage
VBAT > inflection point
6.15
V
VBAT vs. Limiter slope
VBAT < inflection point
3
V/V
AGC option 1, RAGC = 39 kΩ (±5%)
3.55
AGC inflection point
AGC option 2, RAGC = 27 kΩ (±5%)
3.78
V
AGC option 3, RAGC = 18 kΩ (±5%)
3.96
TEST SET-UP FOR GRAPHS
(1)
The 1 µF input capacitors (CI) were shorted for input common-mode voltage measurements.
(2)
A 33 mH inductor was placed in series with the load resistor to emulate a small speaker for efficiency measurements.
(3)
The 30 kHz low-pass filter is required even if the analyzer has an internal low-pass filter. An R-C low pass filter
(100
Ω, 47 nF) is used on each output for the data sheet graphs.
6
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Product Folder Link(s): TPA2015D1


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