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LM4890 Datasheet(PDF) 12 Page - Texas Instruments

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Part # LM4890
Description  1 Watt Audio Power Amplifier
PDF  36 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM4890 Datasheet(HTML) 12 Page - Texas Instruments

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(dBr)
-85
-80
-75
-70
-65
-60
-55
-50
-45
-40
(dBr)
-80
-70
-60
-50
-40
-60
-50
-40
-30
-20
-10
0
1
0
-3
-2
-1
0
1
2
3
(V)
VOUTDC
-60
-50
-40
-30
-20
-10
0
10
-3
-2
-1
0
1
2
3
(V)
VOUTDC
LM4890
SNAS138L – SEPTEMBER 2001 – REVISED MAY 2013
www.ti.com
Typical Performance Characteristics (continued)
PSRR vs DC Output Voltage
PSRR vs DC Output Voltage
VDD = 3V, AV = 4
VDD = 3V, AV = 10
Figure 32.
Figure 33.
PSRR Distribution VDD = 5V
PSRR Distribution VDD = 3V
217Hz, 200mvp-p,
217Hz, 200mvp-p,
-30, +25, and +80°C
-30, +25, and +80°C
Figure 34.
Figure 35.
Power Supply Rejection Ration vs
Power Supply Rejection Ration vs
Bypass Capacitor Size
Bypass Capacitor Size
VDD = 5V, Input Grounded = 10Ω, Output Load = 8Ω
VDD = 3V, Input Grounded = 10Ω, Output Load = 8Ω
Figure 36. Top Trace = No Cap, Next Trace Down = 1µf
Figure 37. Top Trace = No Cap, Next Trace Down = 1µf
Next Trace Down = 2µf, Bottom Trace = 4.7µf
Next Trace Down = 2µf, Bottom Trace = 4.7µf
12
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Copyright © 2001–2013, Texas Instruments Incorporated
Product Folder Links: LM4890



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