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| 型號(hào)： | MAX98089EVKIT#WLP |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 29/131頁(yè) |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX98089-WLP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | DirectDrive® |
| 主要目的： | 音頻編解碼器 |
| 嵌入式： | 是，DSP |
| 已用 IC / 零件： | MAX98089 |
| 主要屬性： | 2.8 V ~ 5.5 V 輸入電壓 |
| 已供物品： | 板，線纜，軟件 |
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Low-Power, Stereo Audio Codec
with FlexSound Technology
Many configuration options in the ICs can be made
while the devices are operating, however, some regis-
ters should only be adjusted when the corresponding
audio path is disabled. Table 39 lists the registers that
are sensitive during operation. Either disable the cor-
responding audio path or set SHDN = 0 while changing
these registers.
Component Selection
Optional Ferrite Bead Filter
In applications where speaker leads exceed 20mm,
additional EMI suppression can be achieved by using a
filter constructed from a ferrite bead and a capacitor to
ground (Figure 42). Use a ferrite bead with low DC resis-
tance, high-frequency (> 600MHz) impedance between
100I and 600I, and rated for at least 1A. The capacitor
value varies based on the ferrite bead chosen and the
actual speaker lead length. Select a capacitor less than
1nF based on EMI performance.
Input Capacitor
An input capacitor, CIN, in conjunction with the input
impedance of the IC line inputs forms a highpass filter
that removes the DC bias from an incoming analog
signal. The AC coupling capacitor allows the amplifier
to automatically bias the signal to an optimum DC level.
Assuming zero-source impedance, the -3dB point of the
highpass filter is given by:
-3dB
IN IN
1
f
2R C
=
π
Choose CIN so that f-3dB is well below the lowest fre-
quency of interest. For best audio quality use capacitors
whose dielectrics have low-voltage coefficients, such as
tantalum or aluminum electrolytic. Capacitors with high-
voltage coefficients, such as ceramics, may result in
increased distortion at low frequencies.
Charge-Pump Capacitor Selection
Use capacitors with an ESR less than 100mI for optimum
performance. Low-ESR ceramic capacitors minimize the
output resistance of the charge pump. Most surface-
mount ceramic capacitors satisfy the ESR requirement.
For best performance over the extended temperature
range, select capacitors with an X7R dielectric.
Table 39. Registers That Are Sensitive to Changes During Operation
Figure 42. Optional Class D Ferrite Bead Filter
MAX98089
SPK_P
SPK_N
REGISTER
DESCRIPTION
0x10 to 0x13, 0x19 to 0x1B
Clock Control Registers
0x14 to 0x17, 0x1C to 0x1F
Digital Audio Interface Configuration
0x18, 0x20
Digital Passband Filters
0x25 to 0x2D
Analog Mixers
0x52 to 0xC9
Digital Signal Processing Coefficients
Maxim Integrated
124
MAX98089
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| RMM08DRYH-S13 | CONN EDGECARD 16POS .156 EXTEND |
| MAX98089EVKIT#TQFN | KIT EVAL FOR MAX98089-TQFN |
| GBM24DSEF-S13 | CONN EDGECARD 48POS .156 EXTEND |
| GBM24DRTF-S13 | CONN EDGECARD 48POS .156 EXTEND |
| GBM24DRKF-S13 | CONN EDGECARD 48POS .156 EXTEND |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX98089EWY+ | 制造商:Maxim Integrated Products 功能描述:STEREO AUDIO CODEC WITH FLEXSOUND TUNING TECHNOLOGY AND BASI - Rail/Tube |
| MAX98089EWY+T | 功能描述:接口—CODEC Audio Codec RoHS:否 制造商:Texas Instruments 類(lèi)型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類(lèi)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 |
| MAX98090AETL+ | 功能描述:接口—CODEC 5V 130mW Stereo Headphone Amp RoHS:否 制造商:Texas Instruments 類(lèi)型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類(lèi)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 |
| MAX98090AETL+T | 功能描述:接口—CODEC 5V 130mW Stereo Headphone Amp RoHS:否 制造商:Texas Instruments 類(lèi)型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類(lèi)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 |
| MAX98090AEWJ+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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