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參數資料
| 型號： | LM4856LQ/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.5 W, 3 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| 封裝： | LLP-24 |
| 文件頁數： | 17/23頁 |
| 文件大?。?/td> | 1321K |
| 代理商： | LM4856LQ/NOPB |
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
65C to +150C
ESD Susceptibility (Note 4)
2.0kV
ESD Machine model (Note 7)
200V
Junction Temperature (T
J)
150C
Solder Information (Note 1)
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
Thermal Resistance
θ
JA (typ) - LQA24A
42C/W
θ
JC (typ) - LQA24A
3.0C/W
θ
JA (typ) - TLA18AAA
48C/W (Note 9)
θ
JC (typ) - TLA18AAA
23C/W (Note 9)
Operating Ratings (Note 3)
Temperature Range
40C to 85C
Supply Voltage V
DD
2.6V
≤ V
DD
≤ 5.0V
Note 1: See AN-450 "Surface Mounting and their effects on Product Reli-
ability" for other methods of soldering surface mount devices.
Electrical Characteristics (Notes 3, 8)
The following specifications apply for V
DD= 5.0V, TA= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4856
Units
(Limits)
Typical
Limits
(Notes 6,
I
DD
Supply Current
Output modes 1, 2, 3, 4, 5, 6, 7
V
IN = 0V; No loads
7.5
11
mA (max)
Output modes 1, 2, 3, 4, 5, 6, 7
V
IN = 0V; Loaded (Figure 1)
8.5
12
mA (max)
I
SD
Shutdown Current
Output mode 0
0.1
2.0
A (max)
V
OS
Output Offset Voltage
V
IN = 0V
5.0
40
mV (max)
P
O
Output Power
SPKR
OUT;RL =4
THD+N = 1%; f = 1kHz, LM4856LQ
1.5
W
SPKR
OUT;RL =8
THD+N = 1%; f = 1kHz
1.1
0.8
W (min)
R
OUT and LOUT;RL =32
THD+N = 0.5%; f = 1kHz
60
45
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
SPKR
OUT
f = 20Hz to 20kHz
P
OUT = 400mW; RL =8
0.5
%
R
OUT and LOUT
f = 20Hz to 20kHz
P
OUT = 15mW; RL =32
0.5
%
N
OUT
Output Noise
A-weighted (Note 10)
29
V
PSRR
Power Supply Rejection Ratio
SPKR
OUT
V
RIPPLE = 200mVPP; f = 217Hz,
C
B = 1.0F
All audio inputs terminated into 50
;
Output referred Gain (BTL) = 12dB
Output Mode 1, 3, 5, 7
58
54
dB (min)
Power Supply Rejection Ratio
R
OUTand LOUT
V
RIPPLE = 200mVPP; f = 217Hz
C
B = 1.0F
All audio inputs terminated into 50
;
Output referred Maximum gain setting
Output Mode 2, 3
68
59
dB (min)
Output Mode 4, 5
60
54
dB (min)
Output Mode 6, 7
56
51
dB (min)
V
IH
Logic High Input Voltage
0.7 x V
DD
V
DD
V (min)
V (max)
LM4856
www.national.com
3
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| LM4857 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 1.2W Audio Sub-system with 3D Enhancement |
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| LM4857GR | 功能描述:IC AUDIO SUBSYSTEM W/3D 49UBGA RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4857ITL | 制造商:Texas Instruments 功能描述:1.2W STEREO SUBSYST 3D SMD 4857 |
| LM4857ITL/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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