LM4946TMX/NOPB National Semiconductor, LM4946TMX/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM4946TMX/NOPB
• Description: IC AUDIO SUBSYSTEM 1.3W D 25USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4946TMX/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: 25-MicroSMD
• Operational Class: Class-AB
• Audio Amplifier Function: Headphone/Speaker
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 72dB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 25
• Package Type: uSMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4946TMX

I
I
V
P
THD+N
N
PSRR
DD
SD
Symbol
OS
O
OUT
Electrical Characteristics 5.0V
The following specifications apply for V
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion + Noise
Output Noise
Power Supply rejection Ratio
MONO
OUT
Parameter
DD
= 5.0V, T
Output Modes 2, 4, 6
V
SE Headphone
Output Modes 1, 3, 5, 7
V
SE Headphone
Output Modes 2, 4, 6
V
OCL Headphone
Output Modes 1, 3, 5
V
OCL Headphone
Output Modes 7
V
OCL Headphone
Output Mode 0
V
Mono
V
Headphones
MONO
THD+N = 1%; f = 1kHz, BTL, Mode 1
R
THD+N = 1%; f = 1kHz, SE, Mode 4
MONO
P
R
P
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
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
RIPPLE
OUT
OUT
B
= 2.2µF, BTL
= 0V; No load
= 0V; No Load,
= 0V; No load,
= 0V; No Load,
= 0V; No Load,
= 0V, Mode 7
= 0V, Mode 7
A
= 500mW; R
= 30mW; R
and L
and L
OUT
OUT
(Notes 2, 7)
= 25°C, all volume controls set to 0dB, unless otherwise specified.
= 200mV
; R
, f = 1kHz
OUT
OUT
L
; R
, f = 1kHz
= 8Ω
Conditions
L
PP
L
7
L
= 32Ω, SE, Mode 4
; f = 217Hz, R
= 32Ω
= 8Ω, BTL, Mode 1
L
= 8Ω
(Note 4)
Typical
0.012
0.05
0.05
3.8
6.6
4.6
7.4
1.3
12
85
17
27
33
12
12
69
60
58
6
3
8
8
8
9
LM4946
(Note 5)
Limits
www.national.com
(Limits)
Units
mW
mA
mA
mA
mA
mA
mV
µA
μV
μV
μV
μV
μV
μV
μV
μV
μV
dB
dB
dB
W
%
%