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參數資料
型號: TPA6203A1DRBG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC8
封裝: 3 X 3 MM, GREEN, PLASTIC, SON-8
文件頁數: 4/29頁
文件大小: 952K
代理商: TPA6203A1DRBG4
V
(rms) +
V
O(PP)
2 2
Power +
V
(rms)
2
R
L
(4)
fc +
1
2pR
L
C
(5)
RL
2x VO(PP)
VO(PP)
–VO(PP)
VDD
RL
CC
VO(PP)
VDD
–3 dB
fc
SLOS364F – MARCH 2002 – REVISED JUNE 2008.......................................................................................................................................................... www.ti.com
low-frequency performance of the system. This
frequency-limiting effect is due to the high pass filter
network created with the speaker impedance and the
coupling
capacitance
and
is
calculated
with
For example, a 68-
F capacitor with an 8- speaker
would attenuate low frequencies below 293 Hz. The
BTL configuration cancels the dc offsets, which
eliminates the need for the blocking capacitors.
Low-frequency performance is then limited only by
the input network and speaker response. Cost and
PCB space are also minimized by eliminating the
bulky coupling capacitor.
Figure 31. Differential Output Configuration
In a typical wireless handset operating at 3.6 V,
bridging raises the power into an 8-
speaker from a
singled-ended (SE, ground reference) limit of 200
mW to 800 mW. In sound power that is a 6-dB
improvement—which is loudness that can be heard.
In addition to increased power there are frequency
response concerns. Consider the single-supply SE
configuration
shown
in
A
coupling
capacitor is required to block the dc offset voltage
Figure 32. Single-Ended Output and Frequency
from reaching the load. This capacitor can be quite
Response
large (approximately 33
F to 1000 F) so it tends to
be expensive, heavy, occupy valuable PCB area, and
Increasing power to the load does carry a penalty of
have
the
additional
drawback
of
limiting
increased internal power dissipation. The increased
dissipation is understandable considering that the
BTL configuration produces 4× the output power of
the SE configuration.
12
Copyright 2002–2008, Texas Instruments Incorporated
Product Folder Link(s): TPA6203A1
相關PDF資料
PDF描述
TPA6203A1DRBRG4 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC8
TPA6203A1DRBR 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC8
TPA6203A1DRB 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC8
TPA6203A1DGNR 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA6203A1DGN 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
相關代理商/技術參數
參數描述
TPA6203A1DRBR 功能描述:音頻放大器 Mono Fully Diff Class-AB RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA6203A1DRBRG4 功能描述:音頻放大器 Mono Fully Diff Class-AB RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA6203A1DRBTG4 制造商:Texas Instruments 功能描述:
TPA6203A1EVM 功能描述:音頻 IC 開發工具 TPA6203A1 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
TPA6203A1GQV 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AUDIO AMPLIFIER|SINGLE|CMOS|BGA|8PIN|PLASTIC
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