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參數(shù)資料
型號: LM4855LQ/NOPB
廠商: National Semiconductor
文件頁數(shù): 23/27頁
文件大小: 0K
描述: IC AMP AUDIO PWR 1.5W MONO 24LLP
標(biāo)準(zhǔn)包裝: 1
系列: Boomer®
類型: AB 類
輸出類型: 1-通道(單聲道),帶立體聲耳機(jī)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 1.5W x 1 @ 4 歐姆; 115mW x 2 @ 32 歐姆
電源電壓: 2.6 V ~ 5 V
特點(diǎn): 消除爆音,靜音,關(guān)機(jī),SPI,熱保護(hù),音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 24-LLP-EP(4x5)
封裝/外殼: 24-WFQFN 裸露焊盤
包裝: 標(biāo)準(zhǔn)包裝
配用: LM4855LQBD-ND - BOARD EVALUATION LM4855LQ
其它名稱: LM4855LQDKR
SNAS164C – JUNE 2002 – REVISED MAY 2013
5V Electrical Characteristics
(1)(2) (continued)
The following specifications apply for VDD= 5.0V, TA= 25°C unless otherwise specified.
Symbol
Parameter
Conditions
LM4855
Units
(Limits)
Typical(3)
Limits(4)
Input referred minimum gain
-34.5
-35.1
dB (min)
-33.9
dB (max)
Digital Volume Range (RIN and LIN)
Input referred maximum gain
12.0
11.4
dB (min)
12.6
dB (max)
Digital Volume Stepsize
1.5
dB
Digital Volume Stepsize Error
±0.1
±0.6
dB ( max)
Phone_In_IHF Volume
BTL gain from Phone_In _IHF to SPKROUT
12
11.4
dB (min)
12.6
dB (max)
Phone _In_IHF Mute Attenuation
Output Mode 2, 4, 6
80
72
dB (min)
Phone_In_IHF Input Impedance
20
15
k
(min)
25
k
(max)
Maximum gain setting
50
37.5
k
(min)
62.5
k
(max)
Phone_In_HS Input Impedance
Mininum gain setting
100
75
k
(min)
125
k
(max)
Maximum gain setting
33.5
25
k
(min)
42
k
(max)
RIN and LIN Input Impedance
Mininum gain setting
100
75
k
(min)
125
k
(max)
tSD
Thermal Shutdown Temperature
170
150
°C (min)
tES
Enable Setup Time (ENB)
20
ns (min)
tEH
Enable Hold Time (ENB)
20
ns (min)
tEL
Enable Low Time (ENB)
30
ns (min)
tDS
Data Setup Time (DATA)
20
ns (min)
tDH
Data Hold Time (DATA)
20
ns (min)
tCS
Clock Setup Time (CLK)
20
ns (min)
tCH
Clock Logic High Time (CLK)
50
ns (min)
tCL
Clock Logic Low Time (CLK)
50
ns (min)
fCLK
Clock Frequency
DC
(min)
10
MHz (max)
Copyright 2002–2013, Texas Instruments Incorporated
5
Product Folder Links: LM4855
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