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參數資料
型號: TPA2005D1ZQYR
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA15
封裝: 2.50 X 2.50 MM, GREEN, PLASTIC, BGA-15
文件頁數: 6/32頁
文件大小: 1128K
代理商: TPA2005D1ZQYR
C
I2 u
1
2p 150kW 20Hz
(9)
C
I2 u
53pF
(10)
_
+
IN–
IN+
PWM
H–
Bridge
VO+
VO–
Internal
Oscillator
CS
To Battery
VDD
GND
Bias
Circuitry
RI2
Differential
Input 1
Filter-Free Class D
SHUTDOWN
RI1
Single-Ended
Input 2
CI2
Summing Two Single-Ended Input Signals
SLOS369F – JULY 2002 – REVISED JULY 2008............................................................................................................................................................... www.ti.com
If summing a ring tone and a phone signal, the phone signal should use a differential input signal while the ring
tone might be limited to a single-ended signal. Phone gain is set at gain 1 = 0.1 V/V, and the ring-tone gain is set
to gain 2 = 2 V/V, the resistor values would be…
R
I1 = 3 M, and = RI2 = 150 k.
The high pass corner frequency of the single-ended input is set by CI2. If the desired corner frequency is less
than 20 Hz.
Figure 36. Application Schematic With TPA2005D1 Summing Differential Input and
Single-Ended Input Signals
Four resistors and three capacitors are needed for summing single-ended input signals. The gain and corner
frequencies (fc1 and fc2) for each input source can be set independently (see equations Equation 11 through
Equation 14, and Figure 37). Resistor, RP, and capacitor, CP, are needed on the IN+ terminal to match the
impedance on the IN- terminal. The single-ended inputs must be driven by low impedance sources even if one of
the inputs is not outputting an ac signal.
14
Copyright 2002–2008, Texas Instruments Incorporated
Product Folder Link(s): TPA2005D1
相關PDF資料
PDF描述
TPA2005D1DGNR 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA2005D1DGN 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA2005D1DRBRG4 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA2005D1DGNG4 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
TPA2005D1DGNRG4 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
相關代理商/技術參數
參數描述
TPA2005D1ZQYRG1 功能描述:音頻放大器 1.4W Mono Class-D Audio Amp 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
TPA2006D1 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V COMPATIBLE INPUT THRESHOLDS
TPA2006D1DRB 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V COMPATIBLE INPUT THRESHOLDS
TPA2006D1DRBR 功能描述:音頻放大器 1.45W Mono Fil-Free Class-D Audio Amp 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
TPA2006D1DRBRG4 功能描述:音頻放大器 1.45W Mono Fil-Free Class-D Audio Amp 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
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