參數(shù)資料
型號(hào)： LM4849
廠商： National Semiconductor Corporation
英文描述： Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux
中文描述： 立體聲2W的音頻功率放大器直流音量控制和輸入復(fù)用器
文件頁數(shù)： 2/19頁
文件大?。?/td> 690K
代理商： LM4849
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 10)
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation
ESD Susceptibility (Note 12)
ESD Susceptibility (Note 13)
Junction Temperature
Soldering Information
Vapor Phase (60 sec.)
Infrared (15 sec.)
6.0V
-65C to +150C
0.3V to V
DD
+0.3V
Internally limited
2500V
250V
150C
215C
220C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
θ
JA
(typ)—MXA28A (exposed DAP) (Note 3)
θ
JA
(typ)—MXA28A (exposed DAP) (Note 4)
θ
JA
(typ)—MXA28A (exposed DAP) (Note 5)
θ
JA
(typ)—MXA28A (exposed DAP) (Note 6)
41C/W
54C/W
59C/W
93C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
40C
≤
TA
≤
85C
2.7V
≤
V
DD
≤
5.5V
Electrical Characteristics for Entire IC
(Notes 7, 10) The following specifications apply for V
DD
= 5V and T
A
= 25C unless otherwise noted.
Symbol
Parameter
Conditions
LM4849
Units
(Limits)
Typical
(Note 14)
Limit
(Note 15)
2.7
5.5
30
2.0
0.8 x VDD
0.2 x VDD
V
DD
Supply Voltage
V (min)
V (max)
mA (max)
μA (max)
V (min)
V (max)
I
DD
I
SD
V
IH
V
IL
Quiescent Power Supply Current
Shutdown Current
VIN High on all Logic Inputs
VIN Low on all Logic Inputs
V
IN
= 0V, I
O
= 0A
V
shutdown
= V
DD
15
0.7
Electrical Characteristics for Volume Attenuators
(Notes 7, 10) The following specifications apply for V
DD
= 5V and T
A
= 25C unless otherwise noted.
Symbol
Parameter
Conditions
LM4849
Units
(Limits)
Typical
(Note 14)
Limit
(Note 15)
±
0.75
-75
C
RANGE
C
RANGE
Attenuator Range
Attenuator Range
Gain with V
DCVol
= 5.0V, No Load
Attenuation with V
DCVol
= 0V (BM &
SE)
V
mute
= 5V, Bridged Mode (BM)
V
mute
= 5V, Single-Ended Mode (SE)
dB (max)
dB (min)
A
M
Mute Attenuation
-78
-78
dB (min)
dB (min)
Electrical Characteristics for Single-Ended Mode Operation
(Notes 7, 10) The following specifications apply for V
DD
= 5V and T
A
= 25C unless otherwise noted.
Symbol
Parameter
Conditions
LM4849
Units
(Limits)
Typical
(Note 14)
85
95
0.065
Limit
(Note 15)
P
O
Output Power
THD+N = 1.0%; f = 1kHz; R
L
= 32
THD+N = 10%; f = 1 kHz; R
L
= 32
V
OUT
= 1V
RMS
, f=1kHz, R
L
= 10k
,
A
VD
= 1
C
B
= 1.0 μF, f =120 Hz,
V
RIPPLE
= 200 mVrms
P
OUT
=75 mW, R
L
= 32
, A-Wtd
Filter
f=1kHz, C
B
= 1.0 μF
mW
mW
%
THD+N
Total Harmonic Distortion+Noise
PSRR
Power Supply Rejection Ratio
58
dB
SNR
Signal to Noise Ratio
102
dB
X
talk
Channel Separation
65
dB
L
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參數(shù)描述
LM4849MH 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux
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LM4849MHX/NOPB 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
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LM4850A E WAF 制造商:Texas Instruments 功能描述:
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