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參數(shù)資料
| 型號： | TPA2013D1RGPT |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER |
| 中文描述： | 2.7鎢恒定輸出功率D類音頻放大器，具有集成升壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/28頁 |
| 文件大?。?/td> | 753K |
| 代理商： | TPA2013D1RGPT |
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www.ti.com
RECOMMENDED INDUCTOR AND CAPACITOR VALUES BY APPLICATION
CLASS-D REQUIREMENTS
DECOUPLING CAPACITORS
INPUT CAPACITORS
)
1
f
=
c
(2
RC
′ p ′
(6)
TPA2013D1
SLOS520–AUGUST 2007
Use
Table 4
as a guide for determining the proper inductor and capacitor values.
Table 4. Recommended Values
Class-D
Output
Power
(W)
(1)
Class-D
Load
(
)
Minimum
V
DD
(V)
Required
V
(V)
Max
Δ
V
(mVpp)
Max I
L
(A)
L
Inductor Vendor
Part Numbers
C
(2)
(
μ
F)
Capacitor Vendor
Part Numbers
(
μ
H)
3.3
10
Toko DE2812C
Coilcraft DO3314
Murata LQH3NPN3R3NG0
4.7
Murata LQH32PN4R7NN0
Toko DE4514C
Coilcraft LPS4018-472
3.3
Murata LQH55PN3R3NR0
Toko DE4514C
6.2
Sumida
CDRH5D28NP-6R2NC
Kemet C1206C106K8PACTU
Murata GRM32ER61A106KA01B
Taiyo Yuden LMK316BJ106ML-T
1
8
3
4.3
0.70
30
22
1.6
8
3
5.5
1.13
30
Murata GRM32ER71A226KE20L
Taiyo Yuden LMK316BJ226ML-T
33
2
4
3
4.6
1.53
30
TDK C4532X5R1A336M
47
2.3
4
1.8
5.5
2
30
Murata GRM32ER61A476KE20L
Taiyo Yuden LMK325BJ476MM-T
(1)
(2)
All power levels are calculated at 1% THD unless otherwise noted
All values listed are for ceramic capacitors. The correction factor of 2 is included in the values.
The TPA2013D1 is a high-performance Class-D audio amplifier that requires adequate power supply decoupling
to
ensure
the
efficiency
is
high
and
total
harmonic
equivalent-series-resistance (ESR) ceramic capacitor, typically 1
μ
F as close as possible to the device VDD lead.
This choice of capacitor and placement helps with higher frequency transients, spikes, or digital hash on the line.
Additionally, placing this decoupling capacitor close to the TPA2013D1 is important for the efficiency of the
Class-D amplifier, because any resistance or inductance in the trace between the device and the capacitor can
cause a loss in efficiency. Place a capacitor of 10
μ
F or greater between the power supply and the boost
inductor. The capacitor filters out high frequency noise. More importantly, it acts as a charge reservoir, providing
energy more quickly than the board supply, thus helping to prevent any droop.
distortion
(THD)
is
low.
Place
a
low
The TPA2013D1 does not require input coupling capacitors if the design uses a differential source that is biased
within the common mode input range. Use input coupling capacitors if the input signal is not biased within the
recommended common-mode input range, if high pass filtering is needed, or if using a single-ended source.
The input capacitors and input resistors form a high-pass filter with the corner frequency, fc, determined in
Equation 6
.
The value of the input capacitor is important to consider as it directly affects the bass (low frequency)
performance of the circuit. Speakers in wireless phones cannot usually respond well to low frequencies, so the
corner frequency can be set to block low frequencies in this application. Not using input capacitors can increase
output offset.
Use
Equation 7
to find the required the input coupling capacitance.
Copyright 2007, Texas Instruments Incorporated
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TPA2013D1
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| TPA2013D1YZH | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER |
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| TPA2013D1YZHT | 制造商:Texas Instruments 功能描述:AUD AMP SPKR 1CH MONO 2.7W CLS-D 16DSBGA - Tape and Reel |
| TPA2014D1 | 制造商:TI 功能描述:1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER |
| TPA2014D1_0806 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER |
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