參數(shù)資料
型號(hào)： MAX9851EVCMODU
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 編解碼器
英文描述： MAX9851評(píng)估板/評(píng)估系統(tǒng)
中文描述： PCM CODEC
文件頁(yè)數(shù)： 32/73頁(yè)
文件大?。?/td> 1357K
代理商： MAX9851EVCMODU
MAX9851/MAX9853
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
38
______________________________________________________________________________________
VIBE Output
The MAX9851/MAX9853 include a VIBE digital output
that may be used to control an external vibrator/trans-
ducer, or may be used as a general-purpose output.
The Vibe circuitry module has its own multiplexer to
allow it to operate from either the S1 or S2 digital audio
interface. Set TSEL to 0 (register 0x09, bit B5) to derive
the VIBE output from the primary digital audio interface
right channel. Set TSEL to 1 to derive the VIBE output
from the secondary digital audio interface left or mono-
mixed left and right channels.
When using signal data to drive VIBE, programmable
gain set by TGAIN (register 0x19, bits B7–B4) is used
to make adjustments with 10-bit output resolution. A
digital lowpass filter is used to condition the signal for
use at the VIBE output.
The VIBE output signal may be generated using either
a threshold comparison of a rectified signal or by an
oversampled 1-bit DAC conversion of a nonrectified
signal. Set TMUX to 11 (register 0x09, bits B7–B6) to
use the output of the internal sigma-delta converter for
driving the transducer output. Set TMUX to 10 to com-
pare the digital audio signal to a programmable
squelch threshold level and generate an output signal
as shown in Figure 6. When driving an external trans-
ducer use an external lowpass filter as shown in Figure
7. The VIBE signal can be amplified if needed by an
external amplifier. Set TMUX to 00 or 01 to force the
output to a fixed 1 or 0, respectively, when using VIBE
as a general-purpose output. Use a 1k pullup resistor
to DVDD to achieve a full-scale signal from the open-
drain output.
Figure 6
. VIBE Output Using Comparator
COMPARATOR
SQUELCH LEVEL
COMPARATOR
OUTPUT SIGNAL
INPUT SIGNAL
Figure 7. Transducer/Vibe Functional Diagram
S1 RIGHT S2 LEFT+RIGHT
TSEL
1-BIT DAC
10k
TRANSDUCER
VIBE
0
1
TMUX
DVDD
400Hz
LOWPASS
FILTER
PGA
-30dB TO +30dB
5-BIT
SQUELCH
LEVEL
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參數(shù)描述
MAX9851EVKIT 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit/Evaluation System for the MAX9851 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
MAX9853ETM+ 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
MAX9853ETM+T 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
MAX9853EVCMODU 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit/Evaluation System for the MAX9853 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
MAX9853EVKIT 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit/Evaluation System for the MAX9853 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型: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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