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參數(shù)資料
| 型號： | LM4838MT/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28 |
| 封裝： | TSSOP-28 |
| 文件頁數(shù)： | 35/38頁 |
| 文件大?。?/td> | 2351K |
| 代理商： | LM4838MT/NOPB |
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Electrical Characteristics for Single-Ended Mode Operation (Notes 7,
10) (Continued)
The following specifications apply for V
DD = 5V. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4838
Units
(Limits)
Typical
Limit
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
LM4838
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
in Figure 1.
Note 8: When driving 3
loads from a 5V supply the LM4838LQ and LM4838MTE must be mounted to the circuit board and forced-air cooled.
Note 9: When driving 4
loads from a 5V supply the LM4838LQ, LM4838MTE, and LM4838GR 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 LM4838, TJMAX = 150C, and the typical junction-to-ambient thermal resistance for each package
can be found in the Absolute Maximum Ratings section above.
Note 12: Human body model, 100pF discharged through a 1.5k
resistor.
Note 13: Machine Model, 220pF – 240pF 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.
LM4838
www.national.com
6
相關PDF資料 |
PDF描述 |
|---|---|
| LM4838ITL/NOPB | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA36 |
| LM4838ITLX/NOPB | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA36 |
| LM4838LQ/NOPB | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28 |
| LM4838LQX/NOPB | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28 |
| LM4839MTE/NOPB | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4838MTX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| LM4838MTX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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 |
| LM4839 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux |
| LM4839A E WAF | 制造商:Texas Instruments 功能描述: |
| LM4839LQ | 制造商:Texas Instruments 功能描述:AMP AUDIO POWER DC VOLT LLP-28 |
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