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LM4934WL Datenblatt(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Teilenummer LM4934WL
Bauteilbeschribung  3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs
Download  39 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4934WL Datenblatt(HTML) 9 Page - National Semiconductor (TI)

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Note 2: 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 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX JA, and the ambient temperature, TA. The maximum
allowable power dissipation is PDMAX =(TJMAX –TA)/ θ JA or the number given in Absolute Maximum Ratings, whichever is lower.
Note 4: Human body model: 100pF discharged through a 1.5k
Ω resistor.
Note 5: Machine model: 220pF - 240pF discharged through all pins.
Note 6: Typicals are measured at 25˚C and represent the parametric norm.
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: Shutdown current is measured in a normal room environment.
Note 10: Internal DAC only with DAC modes 00 and 01.
TABLE 1. Output Noise
Output Noise AV
DD =5Vand AVDD = 3V. All gains set to 0dB. Units in µV. A - weighted
MODE
EP
LS
HP OCL or SE
Lineout
Units
122
22
11
9
µV
222
22
11
9
µV
322
22
11
9
µV
468
88
46
35
µV
538
48
24
20
µV
629
34
18
15
µV
738
48
24
20
µV
TABLE 2. PSRR AV
DD =3V
PSRR AV
DD = 3V. f = 217Hz; Vripple = 200mVp-p; CB = 2.2µF.
MODE
EP
(Typ)
LS
(Typ)
LS
(Limit)
HP OCL or
SE
(Typ)
HP OCL or
SE
(Limit)
Lineout
(Typ)
Units
169
71
72
70
dB
2
69
71
677268
70
dB
369
71
72
70
dB
463
62
55
68
dB
569
68
61
69
dB
669
70
64
70
dB
769
68
61
69
dB
TABLE 3. PSRR AV
DD =5V
PSRR AV
DD = 5V. All gains set to 0dB. f = 217Hz; Vripple = 200mVp-p; CB = 2.2µF
MODE
EP
(Typ)
LS
(Typ)
HP OCL or SE
(Typ)
Lineout
(Typ)
Units
168
72
71
70
dB
268
72
71
70
dB
368
72
71
70
dB
468
66
69
70
dB
568
69
70
70
dB
669
72
71
71
dB
768
69
70
70
dB
TABLE 4. Dynamic Range and SNR
Dynamic Range and SNR. 3V
≤ AV
DD
≤ 5V. All programmable gain set to 0dB. Units in dB.
DR (Typ)
SNR (Typ)
Units
LS
95
85
dB
Lineout
100
87
dB
www.national.com
9


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