參數(shù)資料
型號(hào)： LM4550
廠商： National Semiconductor Corporation
元件分類： Codec
英文描述： AC ’97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound
中文描述： 交流\u0026#39;97活2.1多聲道音頻編解碼器的立體聲耳機(jī)放大器，采樣率轉(zhuǎn)換和國家3D聲音
文件頁數(shù)： 3/25頁
文件大?。?/td> 507K
代理商： LM4550
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 3)
Supply Voltage
Storage Temperature
Input Voltage
ESD Susceptibility (Note 5)
pin 3
ESD Susceptibility (Note 6)
pin 3
Junction Temperature
Soldering Information
LQFP Package
6.0V
65C to +150C
0.3V to V
DD
+0.3V
2000V
750V
200V
100V
150C
Vapor Phase (60 sec.)
Infrared (15 sec.)
See AN-450 "Surface Mounting and their Effects on
Product Reliability" for other methods of
soldering surface mount devices.
θ
JA
(typ)—VBH48A
215C
220C
74C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Analog Supply Range
Digital Supply Range
40C
≤
T
A
≤
85C
4.2V
≤
AV
DD
≤
5.5V
3.0V
≤
DV
DD
≤
5.5V
Electrical Characteristics
(Notes 1, 3)
48kHz, single codec configuration, unless otherwise noted. Limits apply for T
A
= 25C. The reference for 0dB is 1Vrms unless
otherwise specified.
The following specifications apply for AV
DD
= 5V, DV
DD
= 5V, Fs =
Symbol
Parameter
Conditions
LM4550
Units
(Limits)
Typical
(Note 7)
Limit
(Note 8)
4.2
5.5
3.0
5.5
AV
DD
Analog Supply Range
V (min)
V (max)
V (min)
V (max)
DV
DD
Digital Supply Range
D
IDD
Digital Quiescent Power Supply
Current
D
VDD
= 5V
43
mA
D
VDD
= 3.3V
20
mA
A
IDD
Analog Quiescent Power Supply
Current
Digital Shutdown Current
Analog Shutdown Current
Reference Voltage
Power Supply Rejection Ratio
Analog Loopthru Mode
53
mA
I
DSD
I
ASD
V
REF
PSRR
500
30
2.23
40
μA
μA
V
dB
Dynamic Range (Note 2)
CD Input to Line Output, -60dB Input
THD+N, A-Weighted
V
O
= -3dB, f = 1kHz, R
L
= 10k
97
90
dB (min)
THD
Analog Input Section
V
IN
Total Harmonic Distortion
0.01
0.02
% (max)
Line Input Voltage
Mic Input with 20dB Gain
Mic Input with 0dB Gain
Crosstalk
Input Impedance(Note 2)
Input Capacitance
Interchannel Gain Mismatch
1
Vrms
Vrms
Vrms
dB
k
(min)
pF
dB
0.1
1
-95
40
15
0.01
Xtalk
Z
IN
C
IN
CD Left to Right
10
CD Left to Right
Record Gain Amplifier - A/D
A
S
Mixer Section
A
S
A
M
Step Size
0dB to 22.5dB
1.5
dB
Step Size
Mute Attenuation
+12dB to -34.5dB
1.5
86
dB
dB
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4550B 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC 97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound
LM4550BVH 功能描述:接口—CODEC 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
LM4550BVH/NOPB 功能描述:接口—CODEC 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
LM4550BVH/NOPB 制造商:Texas Instruments 功能描述:Audio Codec IC
LM4550BVHX 功能描述:接口—CODEC 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
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