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LM49150 Datasheet(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM49150
Description  Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers
PDF  28 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM49150 Datasheet(HTML) 8 Page - National Semiconductor (TI)

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Symbol
Parameter
Conditions
LM49150
Units
(Limits)
Typical
(Note 6)
Limits
(Note 7)
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mVPP; f = 217Hz, RL = 8Ω, CB = 2.2µF,
All audio inputs terminated to AC GND; output referred
EP Bypass
97
dB
Loudspeaker Output; LS Gain = 6dB
LS; Mode 1
75
dB
LS; Mode 2
71
dB
LS; Mode 3
71
dB
Headphone Output, HP Attenuation = 0dB
HP; Mode 4
91
dB
HP; Mode 8
80
dB
HP; Mode 12
79
dB
Volume Control Step Size Error
±0.2
dB
Digital Volume Control Range
Maximum Attenuation
-92
dB
Volume Step 2
-46.5
-49
-44
dB (min)
dB (max)
Maximum Gain
18
17
19
dB (min)
dB (max)
A
M
Mute Attenuation
HP
98
dB
LS
98
dB
Z
IN
Mono Channel Input Impedance
L
IN and RIN Input Impedance
Maximum gain setting
12
k
Ω
Maximum attenuation setting
111
k
Ω
EP Bypass Resistance
62
50
80
k
Ω (min)
k
Ω (max)
CMRR
Common-Mode Rejection Ratio
f = 217Hz, V
CM = 1VP-P , RL = 8Ω
EP Bypass
55
dB
f = 217Hz, V
CM = 1VP-P, RL = 8Ω
LS, Mode 1
55
dB
f = 217Hz, V
CM = 1VP-P, RL = 32Ω
HP, Mode 4
61
dB
X
TALK
Crosstalk
HP mode 8; P
O = 12mW
R
L = 32Ω, f = 1kHz
78
dB
T
ON
Turn-On Time
C
B = 2.2μF, HP,
Normal Turn-On Mode
27
ms
C
B = 2.2μF, HP,
Fast Turn-On Mode
15
ms
www.national.com
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