LM4682SQBD National Semiconductor, LM4682SQBD Datasheet - Page 6

• Manufacturer Part Number: LM4682SQBD
• Description: BOARD EVALUATION LM4682SQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4682SQBD

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 10W x 2 @ 8 Ohm; 80mW x 2 @ 32 Ohm
• Voltage - Supply: 8.5 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4682
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Symbol
Headphone Amplifiers
P
THD+N
V
PSRR
C
A
O
NOISE
M
Symbol
RANGE
Electrical Characteristics for Volume Control
The following specifications apply for V
Note 1: All voltages are measured with respect to the ground 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: For operating at case temperatures above 25°C, the device must be derated based on a 150°C maximum junction temperature and a thermal resistance
of θ
Note 4: Human body model, 100pF discharged through a 1.5kΩ resistor. Device pin 16 has ESD HBM rating = 1500V.
Note 5: Machine Model 220pF−240pF discharged through all pins.
Note 6: The operating junction temperature maximum is 150°C.
Note 7: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 8: Typicals are measured at 25°C and represent the parametric norm.
JA
= 28°C/W (junction to ambient).
Power Out Per Channel
Distortion + Noise
Output Noise Voltage, RMS
Power Supply Rejection Ratio
(Referred to Input)
Gain Range
Mute Gain
Parameter
Parameter
DD
= 12V. Limits apply for T
THD+N
P
R
to 20kHz
A-weighted, input referred
200mV, 1kHz, V
O
IN
= 20mW, R
= 50Ω, C
VOL_CTL voltage = VOLV
No Load
VOL_CTL voltage = 0.069 x VOLV
No Load
V
MUTE
≤
Power Amplifier
Headphone Amplifier
Power Amplifier
Headphone Amplifier
Power Amplifier
Headphone Amplifier
1%, R
Conditions
voltage = 0V, No Load
IN
L
= 1µF, BW = 20Hz
L
= 32Ω, f
IN
= 32Ω, f
6
= 0, R
Conditions
A
= 25°C.
IN
L
IN
= 32Ω
= 1kHz
= 1kHz
(Notes 1, 2)
DD
Typica
voltage,
0.02
80
88
9
l
DD
Max
(Note 8)
Typical
LM4682
–48
–65
–80
–70
30
13
LM4682
(Note 7)
Limit
–46
–63
–60
–60
Min
29
12
60
dB (max)
dB (max)
(Limits )
dB (min)
dB (min)
dB (min)
dB (min)
Units
Units
mW
µV
dB
%