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參數(shù)資料
| 型號： | LM4921ITLX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA20 |
| 封裝： | MICRO, SMD-20 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大?。?/td> | 457K |
| 代理商： | LM4921ITLX/NOPB |
Electrical Characteristics-Digital Inputs DV
The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for T
A = 25°C.
Symbol
Parameter
Conditions
LM4921
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 9)
Resolution
16
Bits
I2S
Audio Data Interface Format
Standard, I2S, Left Justified
f
MCLK
Master Clock Frequency
11.2896
(256FS)
MHz
f
CONV
Sampling Clock Frequency Range
44.1
48
kHz
V
IL
Digital Input: Logic Low Voltage Level
0.3 X DV
DD
V (max)
V
IH
Digital Input: Logic High Voltage
Level
0.7 X DV
DD
V (min)
t
ES
SPI_ENB Setup Time
20
ns (min)
t
EH
SPI_ENB Hold Time
20
ns (min)
t
EL
SPI_ENB Low Time
30
ns (min)
t
DS
SPI_Data Setup Time
20
ns (min)
t
DH
SPI_Data Hold Time
20
ns (min)
t
CS
SPI_CLK Setup Time
20
ns (min)
t
CH
SPI_CLK High Pulse Width
100
ns (min)
t
CL
SPI_CLK Low Pulse Width
100
ns (min)
f
CLK
SPI_CLK Frequency
5
MHz (max)
t
CLKI2S
I2S_CLK Period
50
ns (min)
t
HII2S
I2S_CLK High Pulse Width
20
ns (min)
t
LOI2S
I2S_CLK Low Pulse Width
20
ns (min)
I2S_LRCLK Duty Cycle
50
%
t
SLRCLK
I2S_LRCLK to I2S_CLK Setup Time
20
ns (min)
t
HLRCLK
I2S_LRCLK to I2S_CLK Hold Time
20
ns (min)
t
SDI2S
I2S_Data to I2S_CLK Setup Time
20
ns (min)
t
HDI2S
I2S_Data to I2S_CLK Hold Time
20
ns (min)
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions
which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters
where no limit is given, however, the typical value is a good indication of device performance.
Note 2:
All voltages are measured with respect to the GND pin, unless otherwise specified.
Note 3:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX, θJA, and the ambient temperature TA. The maximum
allowable power dissipation is P
DMAX = (TJMAX–TA)/θJA or the number given in Absolute Maximum Ratings, whichever is lower.
Note 4:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 5:
Machine Model, 220pF – 240pF discharged through all pins.
Note 6:
Typicals are measured at 25°C and represent the parametric norm.
Note 7:
Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 8:
Best operation is achieved by maintaining 3.0V
≤ AV
DD ≤ 5.0V and 3.0V ≤ DVDD ≤ 5.0V.
Note 9:
Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
7
www.national.com
LM4921
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4922 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ground-Referenced, Ultra Low Noise, Fixed Gain, 80mW Stereo Headphone Amplifier |
| LM4922TL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM4922TL/NOPB | 功能描述:音頻放大器 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 |
| LM4922TLX/NOPB | 功能描述:音頻放大器 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 |
| LM4923 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select |
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