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參數(shù)資料
| 型號： | TPA6130A2RTJT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PQCC20 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-20 |
| 文件頁數(shù)： | 11/28頁 |
| 文件大小： | 1198K |
| 代理商： | TPA6130A2RTJT |
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Modes of Operation
Hardware Shutdown
Software Shutdown
Charge Pump Enabled, HP Amplifiers Disabled
HiZ State
Stereo Headphone Drive
Dual Mono Headphone Drive
Bridge-Tied Load Receiver Drive
SLOS488B – NOVEMBER 2006 – REVISED FEBRUARY 2008
The TPA6130A2 supports numerous modes of operation.
Hardware shutdown occurs when the SD pin is set to logic 0. The device is completely shutdown in this mode,
drawing minimal current. This mode overrides all other modes. All information programmed into the registers is
lost. When the device starts up again, the registers go back to their default state.
Software shutdown is set by placing a logic 1 in register 1, bit 0. That is the SWS bit. The software shutdown
places the device in a low power state, although the current draw is higher than that of hardware shutdown (see
the Electrical Characteristics Table for values). Engaging software shutdown turns off the charge pump and
disables the outputs. The device is awakened by placing a logic 0 in the SWS bit.
Note that when the device is in SWS mode, register 1, bits 7 and 6 will be cleared to reflect the disabled state of
the amplifier. All other registers maintain their values. Re-enable the amplifer by placing a logic 0 in the SWS bit.
It is necessary to reset the entire register because a full word must be used when writing just one bit.
The output amplifiers of the TPA6130A2 are enabled by placing a logic 1 in register 1, bits 6 and 7. Place a logic
0 in register 1, bits 6 and 7 to disable the output amplifiers. The left and right outputs can be enabled and
disabled individually. When the output amplifiers are disabled, the charge-pump remains on.
HiZ is enabled by placing a logic 1 in register 3, bits 0 and 1. Place a logic 0 in register 3, bits 0 and 1 to disable
the HiZ state of the outputs. The left and right outputs can be placed into a HiZ state individually.
The HiZ state puts the outputs into a state of high impedance. Use this configuration when the outputs of the
TPA6130A2 share traces with other devices whose outputs may be active.
Note that to use the HiZ mode, the TPA6130A2 MUST be active (not in SWS or hardware shutdown).
Furthermore, the output amplifiers must NOT be enabled.
The device is in this mode when the MODE bits in register 1 are 00 and both headphone enable bits are
enabled. The two amplifier channels operate independently. This mode is appropriate for stereo playback.
The device is in this mode when the MODE bits in register 1 are 01 and both headphone enable bits are
enabled. The left channel is the active input. It is amplified and distributed to both the left and right headphone
outputs.
The device is in this mode when the MODE bits in register 1 are 10 and both headphone enable bits are
enabled. In this mode, the device will take the left channel input and drive a single load connected between
HPLEFT and HPRIGHT in a bridge-tied fashion. The minimum load for bridge-tied mode is the same as for
stereo mode (see table entitled "Absolute Maximum Ratings").
Copyright 2006–2008, Texas Instruments Incorporated
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Product Folder Link(s): TPA6130A2
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| TPA6130A2RTJRG4 | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PQCC20 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPA6130A2RTJTG4 | 功能描述:音頻放大器 138mW DirectPath St Headphone Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| TPA6130A2YZH | 制造商:TI 制造商全稱:Texas Instruments 功能描述:138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL |
| TPA6130A2YZHR | 功能描述:音頻放大器 138-mW DirectPath Stereo Headphone Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| TPA6130A2YZHT | 功能描述:音頻放大器 138-mW DirectPath Stereo Headphone Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| TPA6132A2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:25-mW DIRECTPATH? STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION |
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