LM4946SQ/NOPB National Semiconductor, LM4946SQ/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM4946SQ/NOPB
• Description: IC AUDIO SUBSYSTEM 1.3W D 24LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4946SQ/NOPB

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.3W x 1 @ 8 Ohm; 85mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, Depop, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 24-LLP
• For Use With: LM4946SQEVAL - BOARD EVALUATION LM4946SQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4946SQ; LM4946SQTR

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N
PSRR
CMRR
XTALK
T
Symbol
WU
OUT
Output Noise
Power Supply Rejection Ratio
MONO
Power Supply Rejection Ratio
R
Volume Control Step Size Error
Digital Volume Control Range
HP(SE) Mute Attenuation
MONO_IN Input Impedance
R
Common-Mode Rejection Ratio
Crosstalk
Wake-Up Time from Shutdown
OUT
IN
and L
and L
OUT
IN
OUT
Input Impedance
Parameter
A-weighted,
inputs terminated to GND, output referred
Speaker; Mode 1
Speaker; Mode 3, 7
Speaker; Mode 5
Headphone; SE, Mode 2
Headphone; SE, Mode 4, 7
Headphone; SE, Mode 6
Headphone; OCL, Mode 2
Headphone; OCL, Mode 4, 7
Headphone; OCL, Mode 6
V
C
All audio inputs terminated to GND;
output referred
BTL, Output Mode 1
BTL, Output Mode 3, 7
BTL, Output Mode 5
V
C
All audio inputs terminated to GND
output referred
SE, Output Mode 2
SE, Output Mode 4,7
SE, Output Mode 6
OCL, Output Mode 2
OCL, Output Mode 4, 7
OCL, Output Mode 6
Maximum attenuation
Maximum gain
Output Mode 1, 3, 5
Maximum gain setting
Maximum attenuation setting
f = 217Hz, V
Mode 1, BTL, R
f = 217Hz, V
Mode 2, R
Headphone; P
f = 1kHz, OCL, Mode 4
Headphone; P
f = 1kHz, SE, Mode 4
C
C
RIPPLE
B
RIPPLE
B
B
B
= 2.2µF, BTL
= 2.2µF,
= 2.2μF, OCL
= 2.2μF, SE
= 200mV
= 200mV
L
= 32Ω
CM
CM
O
O
= 1Vpp,
= 1Vpp,
Conditions
L
= 12mW
= 12mW
PP
PP
= 8Ω
6
; f = 217Hz, R
; f = 217Hz, R
L
L
= 8Ω
= 32Ω
(Note 4)
Typical
±0.2
12.5
110
–54
–72
100
135
-54
17
27
33
12
12
76
65
63
78
82
78
84
78
77
18
96
61
66
8
8
8
9
LM4946
(Note 5)
Limits
17.4
18.6
–56
–52
130
10
15
90
dB (max)
dB (max)
kΩ (max)
kΩ (max)
dB (min)
dB (min)
kΩ (min)
kΩ (min)
(Limits)
Units
μV
μV
μV
μV
μV
μV
μV
μV
μV
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ms
ms