參數(shù)資料
型號： LM4857GR/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA49
文件頁數(shù)： 2/40頁
文件大小： 1948K
代理商： LM4857GR/NOPB
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 TA = 25C.
Symbol
Parameter
Conditions
LM4857
Units
(Limits)
Typical
Limits (Notes
Xtalk
Crosstalk
LD5=RD5=0
Loudspeaker; P
O= 200mW;
f = 1kHz
82
dB
Headphone; P
O= 10mW;
f = 1kHz
82
dB
T
WU
Wake-up Time
CD5=0;C
B = 2.2F
80
ms
CD5=1;C
B = 2.2F
140
ms
Volume Control Electrical Characteristics (Notes 1, 2)
The following specifications apply for V
DD = 5.0V and VDD = 3.0V, unless otherwise specified. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4857
Units
(Limits)
Typical
Limits (Notes
Stereo Volume Control Range
maximum gain setting
6
5.5
6.5
dB (min)
dB (max)
minimum gain setting
-40.5
-41
-40
dB (min)
dB (max)
Mono Volume Control Range
maximum gain setting
12
11.5
12.5
dB (min)
dB (max)
minimum gain setting
-34.5
-35
-34
dB (min)
dB (max)
Volume Control Step Size
1.5
dB
Volume Control Step Size
Error
+/-0.2
+/-0.5
dB (max)
Stereo Channel to Channel
Gain Mismatch
0.3
dB
Mute Attenuation
Mode 12, V
in =1VRMS
Headphone
85
dB
Line Out
85
dB
L
IN and RIN Input Impedance
maximum gain setting
33.5
25
42
k
(min)
k
(max)
minimum gain setting
100
75
125
k
(min)
k
(max)
M
IN Input Impedance
maximum gain setting
20
15
25
k
(min)
k
(max)
minimum gain setting
98
73
123
k
(min)
k
(max)
Control Interface Electrical Characteristics (Notes 1, 2)
The following specifications apply for V
DD = 5V and VDD = 3V and 2.5V
≤ I2CV
DD
≤ 5.5V, unless otherwise specified. Limits
apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4857
Units
(Limits)
Typical
Limits (Notes
t
1
SCL period
2.5
s (min)
t
2
SDA Set-up Time
100
ns (min)
t
3
SDA Stable Time
0
ns (min)
t
4
Start Condition Time
100
ns (min)
LM4857
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相關代理商/技術參數(shù)
參數(shù)描述
LM4857ITL 制造商:Texas Instruments 功能描述:1.2W STEREO SUBSYST 3D SMD 4857
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，開發(fā)系統(tǒng) >> 評估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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