參數(shù)資料
型號(hào)： LM4841LQ/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻控制
英文描述： 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28
封裝： LLP-28
文件頁(yè)數(shù)： 26/31頁(yè)
文件大小： 1138K
代理商： LM4841LQ/NOPB
Electrical Characteristics for Single-Ended Mode Operation (Notes 7, 10)
The following specifications apply for V
DD = 5V. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4841
Units
(Limits)
Typical
Limit
P
O
Output Power
THD = 1.0%; f = 1kHz; R
L =32
85
mW
THD=10%;f=1 kHz; R
L =32
95
mW
THD+N
Total Harmonic Distortion+Noise
V
OUT =1VRMS, f=1kHz, RL = 10k
,
A
VD =1
0.065
%
PSRR
Power Supply Rejection Ratio
C
B = 1.0 F, f =120 Hz,
V
RIPPLE = 200 mVrms
58
dB
SNR
Signal to Noise Ratio
P
OUT =75 mW, R L =32
, A-Wtd
Filter
102
dB
X
talk
Channel Separation
f=1kHz, C
B = 1.0 F
65
dB
Electrical Characteristics for Bridged Mode Operation (Notes 7, 10)
The following specifications apply for V
DD = 5V, unless otherwise noted. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4841
Units
(Limits)
Typical
Limit
V
OS
Output Offset Voltage
V
IN = 0V, No Load
5
±50
mV (max)
P
O
Output Power
THD+N= 1.0%; f=1kHz; R
L =3
2.2
W
THD+N= 1.0%; f=1kHz; R
L =4
2W
THD = 1% (max);f = 1 kHz;
R
L =8
1.1
1.0
W (min)
THD+N = 10%;f = 1 kHz; R
L =8
1.5
W
THD+N
Total Harmonic Distortion+Noise
P
O = 1W, 20 Hz< f < 20 kHz,
R
L =8
,A
VD =2
0.3
%
P
O = 340 mW, RL =32
1.0
%
PSRR
Power Supply Rejection Ratio
C
B = 1.0 F, f = 120 Hz,
V
RIPPLE = 200 mVrms; RL =8
74
dB
SNR
Signal to Noise Ratio
V
DD = 5V, POUT = 1.1W, RL =8
,
A-Wtd Filter
93
dB
X
talk
Channel Separation
f=1kHz, C
B = 1.0 F
70
dB
Note 3: The
θJA given is for an MXA28A package whose exposed-DAP is soldered to an exposed 2in 2 piece of 1 ounce printed circuit board copper.
Note 4: The
θJA given is for an MXA28A package whose exposed-DAP is soldered to a 2in2 piece of 1 ounce printed circuit board copper on a bottom side layer
through 21 8mil vias.
Note 5: The
θJA given is for an MXA28A package whose exposed-DAP is soldered to an exposed 1in 2 piece of 1 ounce printed circuit board copper.
Note 6: The
θJA given is for an MXA28A package whose exposed-DAP is not soldered to any copper.
Note 7: All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown
Note 8: When driving 3
loads from a 5V supply, LM4841MH and LM4841LQ must be mounted to the circuit board and forced-air cooled.
Note 9: When driving 4
loads from a 5V supply, the LM4841MH and LM4841LQ must be mounted to the circuit board.
Note 10: 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 11: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θ JA, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX =(TJMAX TA )/θJA. For the LM4841MT and LM4841LQ, TJMAX = 150C. See Power Dissipation for further information.
Note 12: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 13: Machine Model, 220 pF–240 pF discharged through all pins.
Note 14: Typicals are measured at 25C and represent the parametric norm.
Note 15: Limits are guaranteed to National’s AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are guaranteed by design, test, or
statistical analysis.
LM4841
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4841MH 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive
LM4841MH/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)
LM4841MT 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive
LM4841MT/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)
LM4842 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Amplifiers with DC Volume Control Transient Free Outputs, and Cap-less Headphone Drive
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