參數(shù)資料
型號(hào)： TAS5504PAGG4
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： GREEN, PLASTIC, TQFP-64
文件頁(yè)數(shù)： 38/96頁(yè)
文件大?。?/td> 1216K
代理商： TAS5504PAGG4
TAS5504 Controls and Status
36
SLES123 October 2004
TAS5504
When BKND_ERR is low, the TAS5504 brings the PWM outputs 16 to a backend error state, while not
affecting any other internal settings or operations. Table 24 shows the device output signal states during
backend error.
Table 24. Device Outputs During Backend Error
SIGNAL
SIGNAL STATE
Valid
Low
PWM P-outputs
M-State low
PWM M-outputs
M-State low
HPPWM P-outputs
M-State low
HPPWM M-outputs
M-State low
SDA
Signal Input (not driven)
2.2.4 Speaker / Headphone Selector (HP_SEL)
The HP_SEL terminal enables the headphone output or the speaker outputs. The headphone output receives
the processed data output from DAP and PWM channels 1 and 2.
When low, the headphone output is enabled. In this mode the speaker outputs are disabled. When high, the
speaker outputs are enabled and the headphone is disabled.
Changes in the pin logic level results in a state change sequence using soft mute to the hard mute (M) state
for both speaker and headphone followed by a soft unmute.
When HP_SEL is low, the configuration of channels 1 and 2 are defined by the headphone configuration
register. When HP_SEL is high, the channel 1 and 2 configuration registers define the configuration of
channels 1 and 2.
2.2.5 Mute (MUTE)
The mute control provides a noiseless volume ramp to silence. Releasing mute provides a noiseless ramp
to previous volume. The TAS5504 has both a master and individual channel mute commands. A terminal is
also provided for the master MUTE. The low active master Mute I2C register and the MUTE terminal are
logically Or’ed together. If either is set to low, a mute on all channels is performed. The master mute command
operates on all channels.
When MUTE is invoked, the PWM output stops switching and then goes to an idle state.
The master Mute terminal is used to support a variety of other operations in the TAS5504, such as setting the
inter-channel delay, the biquad coefficients, the serial interface format, and the clock rates. A mute command
by the master mute terminal, individual I2C mute, the AM interference mute sequence, the bank switch mute
sequence, or automute overrides an unmute command or a volume command. While a mute is active, the
commanded channels will be placed in a mute state. When a channel is unmuted, it goes to the last
commanded volume setting that has been received for that channel.
2.3
Device Configuration Controls
The TAS5504 provides a number of system configuration controls that are set at initialization and following
a reset.
Channel Configuration
Headphone Configuration
Audio System Configurations
Recovery from Clock Error
Power Supply Volume Control Enable
Volume and Mute Update Rate
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS5504PAGR 功能描述:音頻 DSP 4 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS5504PAGRG4 功能描述:音頻 DSP 4 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS5508 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:8 Channel Digital Audio PWM Processor
TAS5508-5121K8EVM 功能描述:音頻 IC 開(kāi)發(fā)工具 TAS5508-TAS5121K8 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
TAS5508-5122C6EVM 功能描述:音頻 IC 開(kāi)發(fā)工具 TAS5508-5122C6 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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