LM4859SP/NOPB National Semiconductor, LM4859SP/NOPB Datasheet - Page 9

IC AUDIO SUBSYSTEM W/3D AB 28LLP

LM4859SP/NOPB

Manufacturer Part Number
LM4859SP/NOPB
Description
IC AUDIO SUBSYSTEM W/3D AB 28LLP
Manufacturer
National Semiconductor
Series
Boomer®r
Type
Class ABr
Datasheet

Specifications of LM4859SP/NOPB

Output Type
2-Channel (Stereo) with Stereo Headphones
Max Output Power X Channels @ Load
1.6W x 2 @ 4 Ohm; 75mW x 2 @ 32 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
3D, Depop, I²C, Mute, Shutdown, Thermal Protection, Volume Control
Mounting Type
Surface Mount
Package / Case
28-LLP
Operational Class
Class-AB
Audio Amplifier Output Configuration
2-Channel Stereo
Audio Amplifier Function
Headphone/Speaker
Input Offset Voltage
40@5VmV
Total Harmonic Distortion
0.04/0.05%
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Supply Current (max)
21@5VmA
Power Supply Requirement
Single
Rail/rail I/o Type
No
Power Supply Rejection Ratio
86dB
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
28
Package Type
LLP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM4859SP
LM4859SP
LM4859SPTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM4859SP/NOPB
Manufacturer:
National Semiconductor
Quantity:
1 924
V
V
Symbol
IH
IL
Control Interface Electrical Characteristics
The following specifications apply for V
apply for T
Note 1: All voltages are measured with respect to the GND pin unless otherwise specified.
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
3, 8, or 13 with V
Note 4: Human body model, 100pF discharged through a 1.5kΩ resistor.
Note 5: Machine Model, 220pF-240pF discharged through all pins.
Note 6: Typicals are measured at +25˚C and represent the parametric norm.
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: Shutdown current and supply current are measured in a normal room environment. All digital input pins are connected to I
Note 10: The given θ
Note 11: “0dB gain” refers to the volume control gain setting of M
Note 12: The given θ
External Components Description
1.
2.
3.
4.
5.
6.
Components
Digital Input High Voltage
Digital Input Low Voltage
A
= 25˚C.
C
R
C
DD
C
C
C
OUT
3D
3D
IN
S
B
= 5V, 8Ω stereo loudspeakers and 32Ω stereo headphones, the total power dissipation is 1.348W. θ
JA
JA
Parameter
is for an LM4859SP mounted on a PCB with a 2in
is for an LM4859TL mounted on a PCB with a 2in
DMAX
This is the input coupling capacitor. It blocks the DC voltage and couples the input signal to the
amplifier’s input terminals. C
Impedance) at f
This is the supply bypass capacitor. It filters the supply voltage applied to the V
reduce the noise at the V
This is the BYPASS pin capacitor. It filters the V
PSRR.
This is the output coupling capacitor. It blocks the DC voltage and couples the output signal to the
speaker load R
This resistor sets the gain of the National 3D effect. Please refer to the National 3D Enhancement
section for information on selecting the value of R
This capacitor sets the frequency at which the National 3D effect starts to occur. Please refer to the
National 3D Enhancement section for information on selecting the value of C
= (T
JMAX
- T
A
DD
) / θ
L
C
. C
= 5V and V
JA
= 1/(2πR
OUT
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4859 operating in Mode
also creates a high pass filter with R
DD
i
C
IN
IN
, L
IN
pin.
DD
).
IN
also creates a high pass filter with the internal resistor R
, and R
= 3V and 2.5V ≤ I
Conditions
2
2
area of 10oz printed circuit board ground plane.
area of 10oz printed circuit board ground plane.
IN
9
Functional Description
set at 0dB.
(Notes 1, 2) (Continued)
DD
3D
2
CV
/ 2 voltage and helps maintain the LM4859’s
.
DD
JMAX
≤ 5.5V, unless otherwise specified. Limits
, θ
L
JA
at f
(Note 6)
Typical
, and the ambient temperature, T
O
= 1/(2πR
LM4859
JA
= 62˚C/W.
Limits (Notes
0.7 x I
0.3 x I
L
C
7, 8)
2
3D
OUT
CV
DD
2
2
CVDD
.
CV
DD
).
pin and helps
.
DD
i
A
(Input
. The maximum
www.national.com
(Limits)
V (max)
V (min)
Units

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