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參數(shù)資料
| 型號： | TAS5028APAG |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8 Channel Digital Audio PWM Processor |
| 中文描述： | 8通道數(shù)字音頻PWM處理器 |
| 文件頁數(shù)： | 14/82頁 |
| 文件大小： | 1226K |
| 代理商： | TAS5028APAG |
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Introduction
6
SLES112 — June 2004
TAS5028A
TERMINAL
DESCRIPTION
ATION
5-V
TOLERANT
I/O
NO.
7
TERMIN-
NAME
VRD_PLL
P
Voltage reference for PLL digital supply 1.8 V. A pin-out of the internally regulated
1.8-V power used by PLL logic. A 0.1-
μ
F low ESR capacitor should be connected
between this terminal and AVSS_PLL. This terminal must not be used to power
external devices.
Analog ground for PLL. This terminal should reference the same ground as power
terminal DVSS, but to achieve low PLL jitter; ground noise at this terminal must be
minimized. The availability of the AVSS terminal allows a designer to use
optimizing techniques such as star ground connections, separate ground planes,
or other quiet ground distribution techniques to achieve a quiet ground reference
at this terminal.
8
AVSS_PLL
P
9
AVDD_PLL
P
3.3-V analog power supply for PLL This terminal can be connected to the same
power source used to drive power terminal DVSS, but to achieve low PLL jitter, this
terminal should be bypassed to AVSS_PLL with a 0.1-
μ
F low-ESR capacitor.
Band gap voltage reference. A pin-out of the internally regulated 1.2-V reference.
Typically has a 1-nF low ESR capacitor between VBGAP and AVSS_PLL. This
terminal must not be used to power external devices.
10
VBGAP
P
11
RESET
DI
5 V
Pullup
System reset input, active low. A system reset is generated by applying a logic low
to this terminal. RESET is an asynchronous control signal that restores the
TAS5028A to its default conditions, sets the valid output low, and places the PWM
in the hard mute (M) state. Master volume is immediately set to full attenuation.
Upon the release of RESET, if PDN is high, the system performs a 4
5 ms. device
initialization and sets the volume at mute.
12
HP_SEL
DI
5 V
Pullup
Headphone in/out selector. When a logic low is applied, the headphone is selected
(speakers are off). When a logic high is applied, speakers are selected –
headphone is off.
13
PDN
DI
5 V
Pullup
Power down, active low. PDN powers down all logic and stops all clocks whenever
a logic low is applied. The internal parameters are preserved through a power down
cycle, as long as a RESET is not active. The duration for system recovery from
power down is 100 ms.
Soft mute of outputs, active low (Muted signal = a logic low, normal operation = a
logic high) The mute control provides a noiseless volume ramp to silence.
Releasing mute provides a noiseless ramp to previous volume.
14
MUTE
DI
5 V
Pullup
15
DVDD
P
Digital power 3.3-V supply for digital core and most of I/O buffers
16
DVSS
P
Digital ground for digital core and most of I/O buffers
17
VR_DPLL
P
Voltage reference for digital PLL supply 1.8 V. A pin-out of the internally regulated
1.8-V power used by digital PLL logic. A 0.1
μ
F low ESR capacitor should be
connected between this terminal and DVSS_CORE. This terminal must not be
used to power external devices.
Oscillator capacitor
18
OSC_CAP
AO
19
XTL_OUT
AO
XTL_OUT and XTL_IN are the only LVCMOS terminals on the device. They
provide a reference clock for the TAS5028A via use of an external fundamental
mode crystal. XTL_OUT is the 1.8-V output drive to the crystal. See Note 4 for the
recommended crystal type.
XTL_OUT and XTL_IN are the only LVCMOS terminals on the device. They
provide a reference clock for the TAS5028A via use of an external fundamental
mode crystal. XTL_IN is the 1.8-V input port for the oscillator circuit. See Note 4
for the recommended crystal type.
Connect to digital ground
20
XTL_IN
AI
21
RESERVED
22
RESERVED
Connect to digital ground
23
RESERVED
Connect to digital ground
I
2
C serial control data interface input / output
I
2
C serial control clock input output
24
SDA
DIO
5 V
25
SCL
DI
5 V
26
LRCLK
DI
5 V
Serial audio data left / right clock (sampling rate clock)
27
SCLK
DI
5 V
Serial audio data clock (shift clock) SCLKIN is the serial audio port (SAP) input data
bit clock that is supplied to the serial bit clock to other I
2
S bus.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5028APAGG4 | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028APAGR | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028APAGRG4 | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028PAG | 功能描述:音頻 DSP 8 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 |
| TAS5028PAGG4 | 功能描述:音頻 DSP 8 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 |
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