- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385899 > TAS5036BPFC (Texas Instruments, Inc.) Six Channel Digital Audio PWM Precessor PDF資料下載
參數(shù)資料
| 型號： | TAS5036BPFC |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Six Channel Digital Audio PWM Precessor |
| 中文描述： | 六通道數(shù)字音頻PWM Precessor |
| 文件頁數(shù)： | 25/56頁 |
| 文件大小： | 713K |
| 代理商： | TAS5036BPFC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁當(dāng)前第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁
Architecture Overview
19
SLES073
—
February 2003
TAS5036B
While a volume update is being performed, the system status register indicates that the update is in progress.
During the update, all subsequent volume control setting requests that are sent to the TAS5036B are received
and stored as a single next value for a subsequent update. If more than one volume setting request is sent,
only the last is retained.
Table 2
–
9. Volume Register
VOLUME REGISTER
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
Vol
Bit 7
Vol
Bit 6
Vol
Bit 5
Vol
Bit 4
Vol
Bit 3
Vol
Bit 2
Vol
Bit 1
Vol
Bit 0
2.3.2 Mute
The application of mute ramps the volume from any setting to noiseless hard mute state. There are two
methods in which the TAS5036B can be placed into mute. The TAS5036B is placed in the noiseless mute when
the MUTE terminal is asserted low for a minimum of 3 MCLK_IN cycles. Alternatively, the mute mode can be
initiated by setting the mute bit in the system control register through the serial control interface. The
TAS5036B is held in mute state as long as the terminal is low or I
2
C mute setting is active. This command uses
quiet entry and exit sequences to and from the hard mute state.
If an error recovery (described in the PWM section) occurs after a mute request has been received, the device
returns from error recovery with the channel volume set as specified by the mute command.
2.3.3 Auto Mute
Automute is an automatic sequence that can be enabled or disabled via the serial control interface. The default
for this control is enabled. When enabled, the PWM automutes an individual channel when a channel receives
from 5 ms to 50 ms of consecutive zeros. This time interval can be selectable using the automute delay
register. The default interval is 5 ms at 48 kHz. This duration is independent of the sample rate. The automute
state is exited when two consecutive samples of nonzero data are received. The TAS5036B exit from
automute is performed quickly and preserves all music information.
This mode uses the valid low to provide a low-noise floor while maintaining a short start-up time. Noise free
entry and exit is achieved by using the PWM quiet start and stop sequences.
2.3.4 Individual Channel Mute
Individual channel mute is invoked through the serial interface. Individual channel mute permits each channel
of the TAS5036B to be individually muted and unmuted. The operation that is performed is identical to the mute
operation; however, it is performed on a per channel basis. A TAS5036B channel is held in the mute state as
long as the serial interface mute setting for that channel is set.
2.3.5 De-Emphasis Filter
For audio sources that have been pre-emphasized, a precision 50-
μ
s/15-
μ
s de-emphasis filter is provided to
support the sampling rates of 32 kHz, 44.1 kHz, and 48 kHz. See Figure 2
–
11 for a graph showing the
de-emphasis filtering characteristics. De-emphasis is set using two bits in the system control register.
Table 2
–
10. De-Emphasis Filter Characteristics
DEM_SEL2 (MSB)
DEM_SEL1
DESCRIPTION
0
0
De-emphasis disabled
0
1
De-emphasis enabled for Fs = 48 kHz
1
0
De-emphasis enabled for Fs = 44 kHz
1
1
De-emphasis enabled for Fs = 32 kHz
Following the change of state of the de-emphasis bits, the PWM outputs go into the soft mute state. After 128
LRCLK periods for initialization, the PWM outputs are driven to the normal (unmuted) mode.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TAS5036IPFC | SIX CHANNEL DIGITAL AUDIO PWM PROCESSOR |
| TAS5036IPFCR | SIX CHANNEL DIGITAL AUDIO PWM PROCESSOR |
| TB1239BF | Bi-CMOS Integrated Circuit Silicon Monolithic |
| TB1240AN | PAL/NTSC 1CHIP (IF + VCD RPOCESSOR) IC |
| TB1245N | TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5036BPFCG4 | 功能描述:音頻 DSP Dig Aud PWM Proc 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 |
| TAS5036BPFCR | 功能描述:多媒體雜項 Dig Aud PWM Proc RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| TAS5036BPFCRG4 | 功能描述:多媒體雜項 Dig Aud PWM Proc RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| TAS5036CPAG | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SIX CHANNEL DIGITAL AUDIO PWM PROCESSOR |
| TAS5036IPFC | 功能描述:音頻 DSP Dig Aud PWM Proc 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。