LM4946SQ/NOPB National Semiconductor, LM4946SQ/NOPB Datasheet - Page 8

• 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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PSRR
CMRR
XTALK
TWU
Symbol
Power Supply Rejection Ratio
R
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
IN
OUT
Input Impedance
Parameter
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
Headphone; P
C
C
RIPPLE
B
B
B
= 2.2µF, BTL
= 2.2μF, OCL
= 2.2μF, SE
= 200mV
L
= 32Ω
CM
CM
O
O
= 1Vpp, 0dB gain
= 1Vpp, 0dB gain
Conditions
L
= 30mW, OCL, Mode 4
= 30mW, SE, Mode 4
PP
= 8Ω
8
; f = 217Hz, R
L
= 32Ω
(Note 4)
Typical
12.5
110
–55
–72
135
180
-54
75
75
72
75
79
72
18
96
61
66
LM4946
(Note 5)
Limits
17.4
18.6
130
-56
-52
10
15
90
dB (max)
dB (max)
kΩ (max)
kΩ (max)
dB (min)
dB (min)
kΩ (min)
kΩ (min)
(Limits)
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ms
ms