參數資料
型號： LM4855ITL
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： Boomer AUDIO POWER AMPLIFIER 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： 4/24頁
文件大小： 1116K
代理商： LM4855ITL
Electrical Characteristics
(Notes 3, 8) (Continued)
The following specifications apply for V
DD
= 5.0V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4855
Units
(Limits)
Typical
(Note 5)
Limits
(Note 6)
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) = 12dB
Output Mode 1, 3, 5, 7
V
RIPPLE
= 200mV
PP
; f = 217Hz, C
B
=
1.0μF
All audio inputs terminated into 50
;
Output referred Maximum gain setting
Output Mode 2, 3
Output Mode 4, 5
Output Mode 6, 7
57
54
dB (min)
Power Supply Rejection Ratio
R
OUT
and L
OUT
62
57
54
59
54
51
1.4
V
DD
0.4
GND
-35.1
-33.9
11.4
12.6
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 (min)
k
(min)
k
(max)
k
(min)
k
(max)
k
(min)
k
(max)
k
(min)
k
(max)
k
(min)
k
(max)
C (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
(min)
MHz (max)
V
IH
Logic High Input Voltage
V
IL
Logic Low Input Voltage
Digital Volume Range (R
IN
and
L
IN
)
Input referred minimum gain
-34.5
Input referred maximum gain
12.0
Digital Volume Stepsize
Digital Volume Stepsize Error
Phone_In_IHF Volume
1.5
±
0.1
12
±
0.6
11.4
12.6
72
15
25
37.5
62.5
75
125
25
42
75
125
150
20
20
30
20
20
20
50
50
DC
10
BTL gain from Phone_In _IHF to
SPKR
OUT
Output Mode 2, 4, 6
Phone _In_IHF Mute Attenuation
Phone_In_IHF Input Impedance
80
20
Phone_In_HS Input Impedance
Maximum gain setting
50
Mininum gain setting
100
R
IN
and L
IN
Input Impedance
Maximum gain setting
33.5
Mininum gain setting
100
t
SD
t
ES
t
EH
t
EL
t
DS
t
DH
t
CS
t
CH
t
CL
f
CLK
Thermal Shutdown Temperature
Enable Setup Time (ENB)
Enable Hold Time (ENB)
Enable Low Time (ENB)
Data Setup Time (DATA)
Data Hold Time (DATA)
Clock Setup Time (CLK)
Clock Logic High Time (CLK)
Clock Logic Low Time (CLK)
Clock Frequency
170
L
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相關代理商/技術參數
參數描述
LM4855ITL/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4855ITLX 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 1.1W Class-AB 18-Pin uSMD T/R
LM4855ITLX/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4855LQ 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4855LQ/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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