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参数资料
| 型号： | LM4546AVH/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封装： | 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48 |
| 文件页数： | 22/27页 |
| 文件大小： | 897K |
| 代理商： | LM4546AVH/NOPB |
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Electrical Characteristics (Notes 1, 5) The following specifications apply for AV
DD = 5V, DVDD = 5V,
Sampling Frequency (Fs) = 48 kHz, single codec configuration, unless otherwise noted. Limits apply for T
A= 25C. The
reference for 0 dB is 1 Vrms unless otherwise specified. (Continued)
Symbol
Parameter
Conditions
LM4546A
Units
(Limits)
Typical
Limit
Analog to Digital Converters
Resolution
18
Bits
Dynamic Range (Note 9)
-60 dB Input THD+N, A-Weighted
90
86
dB (min)
Frequency Response
-1 dB Bandwidth
20
kHz
Digital to Analog Converters
Resolution
18
Bits
Dynamic Range (Note 9)
-60 dB Input THD+N, A-Weighted
89
85
dB (min)
THD
Total Harmonic Distortion
V
IN =-3dB,f=1 kHz, RL =10k
0.01
%
Frequency Response
20 - 21 k
Hz
Group Delay (Note 9)
2
ms (max)
Out of Band Energy (Note 10)
-40
dB
Stop Band Rejection
70
dB
D
T
Discrete Tones
-96
dB
Analog Output Section
A
S
Step Size
0 dB to -46.5 dB
1.5
dB
A
M
Mute Attenuation
86
dB
Z
OUT
Output Impedance (Note 9)
All Analog Outputs
TBD
Digital I/O (Note 9)
V
IH
High level input voltage
0.40 x
DV
DD
V (min)
V
IL
Low level input voltage
0.30 x
DV
DD
V (max)
V
OH
High level output voltage
0.50 x
DV
DD
V (min)
V
OL
Low level output voltage
0.20 x
DV
DD
V (max)
I
L
Input Leakage Current
AC Link inputs
±10
A
I
L
Tri state Leakage Current
High impedance AC Link outputs
±10
A
I
DR
Output drive current
AC Link outputs
5
mA
Digital Timing Specifications (Note 9)
F
BC
BIT_CLK frequency
12.288
MHz
T
BCP
BIT_CLK period
81.4
ns
T
CH
BIT_CLK high
Variation of BIT_CLK duty cycle from
50%
±20
% (max)
F
SYNC
SYNC frequency
48
kHz
T
SP
SYNC period
20.8
s
T
SH
SYNC high pulse width
1.3
s
T
SL
SYNC low pulse width
19.5
s
T
DSETUP
Setup Time for codec data input
SDATA_OUT to falling edge of BIT_CLK
15
ns (min)
T
DHOLD
Hold Time for codec data input
Hold time of SDATA_OUT from falling
edge of BIT_CLK
5
ns (min)
T
SSETUP
Setup Time for codec SYNC input
SYNC to rising edge of BIT_CLK
TBD
ns (min)
T
SHOLD
Hold Time for codec SYNC input
Hold time of SYNC from rising edge of
BIT_CLK
TBD
ns (min)
LM4546A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4546AVHX | 制造商:Rochester Electronics LLC 功能描述:AC97 REV2 CODEC 3D STEREO - Bulk |
| LM4546B | 制造商:NSC 制造商全称:National Semiconductor 功能描述:AC ’97 Rev 2 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound |
| LM4546BVH | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| LM4546BVH /NOPB | 制造商:Texas Instruments 功能描述:Audio Codec 2ADC / 2DAC 18-Bit 48-Pin LQFP Tray |
| LM4546BVH/NOPB | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
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