參數(shù)資料
型號: LM4852ITL
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: Integrated Audio Amplifier System
中文描述: 1.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PBGA18
封裝: MICRO SMD-18
文件頁數(shù): 4/21頁
文件大?。?/td> 860K
代理商: LM4852ITL
Electrical Characteristics 5.0 V
(Notes 3, 8) (Continued)
The following specifications apply for V
DD
= 5.0V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4852
Units
(Limits)
Typical
(Note 5)
Limits
(Notes 6,
11)
PSRR
Power Supply Rejection Ratio
SPKR
OUT
V
RIPPLE
= 200mV
PP
; f = 217Hz,
C
B
= 1.0μF
All audio inputs terminated into 50
;
Output referred Gain (BTL) = 6dB
Output Mode 1,7
Output Mode 3
Output Mode 5
V
RIPPLE
= 200mV
PP
; f = 217Hz
C
B
= 1.0μF
All audio inputs terminated into 50
;
Output referred Maximum gain setting
Output Mode 2
Output Mode 4
Output Mode 6, 7
64
58
55
57
dB (min)
dB
dB
Power Supply Rejection Ratio
R
OUT
and L
OUT
68
60
56
59
54
51
dB (min)
dB (min)
dB (min)
V (min)
V (max)
V (max)
V (min)
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)
V
IH
Logic High Input Voltage
0.7 x V
DD
V
DD
0.4
GND
-41.1
-39.9
5.4
6.6
V
IL
Logic Low Input Voltage
Digital Volume Range
(R
IN
and L
IN
)
Input referred minimum gain
-40.5
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
L
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