參數(shù)資料
型號(hào): LM4852
廠商: National Semiconductor Corporation
元件分類: 音頻放大器
英文描述: Integrated Audio Amplifier System
中文描述: 集成音頻放大器系統(tǒng)
文件頁數(shù): 6/21頁
文件大?。?/td> 860K
代理商: LM4852
Electrical Characteristics 3.0V
(Notes 2, 8) (Continued)
The following specifications apply for V
DD
= 3.0V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4852
Units
(Limits)
Typical
(Note 5)
Limits
(Notes 6,
11)
Digital Volume Range
(R
IN
and L
IN
)
Input referred minimum gain
-40.5
-41.1
-39.9
5.4
6.6
dB (min)
dB (max)
dB (min)
dB (max)
dB
dB ( max)
dB (min)
dB (max)
dB
k
(min)
k
(max)
k
(min)
k
(max)
k
(min)
k
(max)
C (min)
μs (min)
ns (min)
ns (min)
ns (min)
ns (min)
Input referred maximum gain
6.0
Digital Volume Stepsize
Digital Volume Stepsize Error
1.5
±
0.1
±
0.6
5.4
6.6
Phone In Volume
BTL gain from Phone In to SPKR
OUT
6
Mute Attenuation
Output Mode 1, 3, 5
100
Phone In Input Impedance
20
15
25
22.5
37.5
75
125
150
2.5
100
0
100
100
R
IN
and L
IN
Input Impedance
Maximum gain setting
30
Mininum gain setting
100
T
SD
t
1
t
2
t
3
t
4
t
5
Thermal Shutdown Temperature
SCL (Clock) Period
SDA to SCL Set-up Time
Data Out Stable Time
Start Condition Time
Stop Condition Time
170
Note 2:
Absolute Maximum Rating indicate limits beyond which damage to the device may occur.
Note 3:
Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and
test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions.
Note 4:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 5:
Typical specifications are specified at +25C and represent the most likely parametric norm.
Note 6:
Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 7:
Machine Model ESD test is covered by specification EIAJ IC-121-1981. A 200pF cap is charged to the specified voltage, then discharged directly into the
IC with no external series resistor (resistance of discharge path must be under 50
).
Note 8:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 9:
The given
θ
JA
and
θ
JC
are for an LM4852 mounted on a demonstration board with a 4in
2
area of 1oz printed circuit board copper ground plane.
Note 10:
Please refer to the Output Noise vs Output Mode table in the Typical Performance Characteristics section for more details.
Note 11:
Datasheet min/max specifications are guaranteed by design, test, or statistical analysis.
L
www.national.com
6
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