參數(shù)資料
型號(hào)： LM4857ITL
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 消費(fèi)家電
英文描述： Stereo 1.2W Audio Sub-system with 3D Enhancement
中文描述： SPECIALTY CONSUMER CIRCUIT, PBGA30
封裝： MICRO SMD-30
文件頁(yè)數(shù)： 10/38頁(yè)
文件大小： 1517K
代理商： LM4857ITL
Audio Amplifier Electrical Characteristics V
DD
= 3.0V
(Notes 1, 2) (Continued)
The following specifications apply for V
DD
= 3.0V, unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4857
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
Xtalk
Crosstalk
LD5 = RD5 = 0
Loudspeaker; P
O
= 200mW;
f = 1kHz
Headphone; P
O
= 10mW;
f = 1kHz
CD5 = 0; C
B
= 2.2μF
CD5 = 1; C
B
= 2.2μF
82
dB
82
dB
T
WU
Wake-up Time
80
140
ms
ms
Volume Control Electrical Characteristics
(Notes 1, 2)
The following specifications apply for V
DD
= 5.0V and V
DD
= 3.0V, unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4857
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
6
Stereo Volume Control Range
maximum gain setting
5.5
6.5
-41
-40
11.5
12.5
-35
-34
dB (min)
dB (max)
dB (min)
dB (max)
dB (min)
dB (max)
dB (min)
dB (max)
dB
dB (max)
minimum gain setting
-40.5
Mono Volume Control Range
maximum gain setting
12
minimum gain setting
-34.5
Volume Control Step Size
Volume Control Step Size
Error
Stereo Channel to Channel
Gain Mismatch
1.5
+/-0.2
+/-0.5
0.3
dB
Mute Attenuation
Mode 12, V
in
= 1V
RMS
Headphone
Line Out
maximum gain setting
85
85
33.5
dB
dB
L
IN
and R
IN
Input Impedance
25
42
75
125
15
25
73
123
k
(min)
k
(max)
k
(min)
k
(max)
k
(min)
k
(max)
k
(min)
k
(max)
minimum gain setting
100
M
IN
Input Impedance
maximum gain setting
20
minimum gain setting
98
Control Interface Electrical Characteristics
(Notes 1, 2)
The following specifications apply for V
DD
= 5V and V
DD
= 3V and 2.5V
≤
I
2
CV
DD
≤
5.5V, unless otherwise specified. Limits
apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4857
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
t
1
t
2
t
3
t
4
SCL period
SDA Set-up Time
SDA Stable Time
Start Condition Time
2.5
100
0
100
μs (min)
ns (min)
ns (min)
ns (min)
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4857ITL/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4857ITLBD 功能描述:BOARD EVALUATION LM4857ITL RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:-
LM4857ITLX/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4857SP 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4857SP/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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