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参数资料
| 型号： | TAS5508PAGR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | GREEN, PLASTIC, TQFP-64 |
| 文件页数： | 44/105页 |
| 文件大小： | 1286K |
| 代理商： | TAS5508PAGR |
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3
TAS5508 Controls and Status
3.1
I
2C Status Registers
3.1.1
General Status Register (0x01)
3.1.2
Error Status Register (0x02)
3.2
TAS5508 Pin Controls
3.2.1
Reset (RESET)
TAS5508
8-Channel Digital Audio PWM Processor
www.ti.com
SLES091D – FEBRUARY 2004 – REVISED JULY 2009
The TAS5508 provides control and status information from both the I2C registers and device pins.
This section describes some of these controls and status functions. The I2C summary and detailed
register descriptions are contained in Section 6 and Section 7.
The TAS5508 has two status registers that provide general device information. These are the general
status register 0 (0x01) and the error status register (0x02).
Device identification code
Clip indicator – The TAS5508 has a clipping indicator. Writing to the register clears the indicator.
Bank switching is busy.
No internal errors (the valid signal is high)
A clock error has occurred – These are sticky bits that are cleared by writing to the register.
–
LRCLK error – when the number of MCLKs per LRCLK is incorrect
–
SCLK error – when the number of SCLKS per LRCLK is incorrect
–
Frame slip – when the number of MCLKs per LRCLK changes by more than 10 MCLK cycles
–
PLL phase-lock error
This error status register is normally used for system development only.
The TAS5508 provide a number of terminal controls to manage the device operation. These controls are:
RESET
PDN
BKND_ERR
HP_SEL
MUTE
The TAS5508 is placed in the reset mode either by the power-up reset circuitry when power is applied, or
by setting the RESET terminal low.
RESET is an asynchronous control signal that restores the TAS5508 to the hard mute state (M). Master
volume is immediately set to full attenuation (there is no ramp down). Reset initiates the device reset
without an MCLK input. As long as the RESET terminal is held low, the device is in the reset state. During
reset, all I2C and serial data bus operations are ignored.
Table 3-1 shows the device output signals while RESET is active.
Table 3-1. Device Outputs During Reset
SIGNAL
SIGNAL STATE
Valid
Low
PWM P-outputs
Low (M-state)
PWM M-outputs
Low (M-state)
SDA
Signal input (not driven)
TAS5508 Controls and Status
43
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| TAS5508PAGRG4 | 功能描述:音频 DSP 8Ch Dig Aud PWM Proc RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
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| TAS5518 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TAS5518 8 Channel Digital Audio PWM Processor |
| TAS5518_06 | 制造商:TI 制造商全称:Texas Instruments 功能描述:8 Channel Digital Audio PWM Processor |
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