LM4947TL National Semiconductor, LM4947TL Datasheet - Page 7

• Manufacturer Part Number: LM4947TL
• Manufacturer: National Semiconductor

Specifications of LM4947TL

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Power Supply Requirement: Triple
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 76dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.2/2.7V
• Dual Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 25
• Package Type: uSMD
• Lead Free Status / Rohs Status: Not Compliant

I
I
V
P
THD+N
N
DDQ
SD
Symbol
OS
O
OUT
Electrical Characteristics 5V
The following specifications apply for V
Quiescent Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion + Noise
Output Noise
Parameter
DD
= 5V, T
Output Modes 2, 4, 6
V
OCL = 0 (Table 2)
Output Modes 1, 3, 5, 7
V
OCL = 0 (Table 2)
Output Mode 0
V
V
MONO
THD+N = 1%; f = 1kHz, BTL, Mode 1
R
THD+N = 1%; f = 1kHz, SE, Mode 4
MONO
f = 1kHz, P
R
R
f = 1kHz, P
R
A-weighted, 0dB
inputs terminated, output referred
Speaker; Mode 1
Speaker; Mode 3
Speaker; Mode 5
Speaker; Mode 7
Headphone; SE, Mode 2
Headphone; SE, Mode 4
Headphone; SE, Mode 6
Headphone; OCL, Mode 2
Headphone; OCL, Mode 4
Headphone; OCL, Mode 6
IN
IN
IN
IN
OUT
L
OUT
L
= 8Ω, BTL, Mode 1
= 32Ω, SE, Mode 4
A
= 0V; No load,
= 0V; No load, BTL,
= 0V, Mode 7, Mono
= 0V, Mode 7, Headphones
(Notes 2, 7)
= 25°C and all gains are set for 0dB unless otherwise specified.
and L
and L
OUT
OUT
; R
OUT
OUT
OUT
OUT
L
; R
= 8Ω
= 500mW;
= 30mW;
Conditions
L
7
= 32Ω
(Note 4)
Typical
1.19
0.04
0.01
5.4
7.6
0.1
87
38
38
39
36
21
21
24
16
16
19
2
2
LM4947
(Note 5)
Limits
7.5
12
15
15
1
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mV (max)
mV (max)
µA (max)
(Limits)
Units
mW
mA
mA
μV
μV
μV
μV
μV
μV
μV
μV
μV
μV
W
%
%