LM4947TL/NOPB National Semiconductor, LM4947TL/NOPB Datasheet - Page 8

• Manufacturer Part Number: LM4947TL/NOPB
• Description: IC AUDIO SUBSYSTM 1.19W D 25USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4947TL/NOPB

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.19W x 1 @ 8 Ohm; 87mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, Depop, Differential Inputs, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 25-MicroSMD
• Amplifier Class: D
• No. Of Channels: 3
• Output Power: 2.5W
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 32ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: SMD
• Rohs Compliant: Yes
• For Use With: LM4947TLEVAL - BOARD EVALUATION LM4947TL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4947TLTR

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PSRR
η
CMRR
XTALK
T
Symbol
WU
Power Supply Rejection Ratio
Loudspeaker out
Power Supply Rejection Ratio
R
Class D Efficiency
Common-Mode Rejection Ratio
Crosstalk
Wake-Up Time from Shutdown
Volume Control Step Size Error
Digital Volume Range
Mute Attenuation
MONO_IN Input Impedance
R
OUT
IN
and L
and L
IN
OUT
Input Impedance
Parameter
V
R
All audio inputs terminated to GND;
output referred
BTL, Output Mode 1
BTL, Output Mode 3
BTL, Output Mode 5
BTL, Output Mode 7
V
R
All audio inputs terminated to GND;
output referred
SE, Output Mode 2
SE, Output Mode 4
SE, Output Mode 6
OCL, Output Mode 2
OCL, Output Mode 4
OCL, Output Mode 6
Output Mode 1, 3, 5
f = 1kHz, V
Mode 1, BTL, R
Headphone, P
OCL, Mode 4
Headphone, P
SE, Mode 4
C
C
Input referred maximum attenuation
Input referred maximum gain
Output Mode 1, 3, 5
Maximum gain setting
Maximum attenuation setting
RIPPLE
RIPPLE
L
L
B
B
= 8Ω, C
= 32Ω, C
= 2.2μF, OCL, R
= 2.2μF, SE, R
= 200mV
= 200mV
B
CM
B
= 2.2µF, BTL
= 2.2µF, BTL
= 1Vpp, 0dB gain,
O
O
Conditions
L
= 30mW, f = 1kHz,
= 30mW, f = 1kHz,
PP
PP
= 8Ω
8
L
; f = 217Hz,
; f = 217Hz,
L
= 32Ω
= 32Ω
(Note 4)
Typical
-59.5
±0.2
–49
–55
–72
116
150
+18
100
70
61
64
61
72
70
65
76
72
70
86
90
11
LM4947
(Note 5)
Limits
kΩ (max)
kΩ (max)
dB (min)
kΩ (min)
kΩ (min)
(Limits)
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ms
ms
dB
dB
dB
%