參數(shù)資料
型號: MAX9792AETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 8/34頁
文件大小: 0K
描述: IC AMP AUDIO 3.7W MONO D 28TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
系列: DirectDrive®
類型: D 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: 3.7W x 1 @ 3 歐姆; 180mW x 2 @ 32 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點(diǎn): 消除爆音,LDO,短路保護(hù)和熱保護(hù),關(guān)機(jī)
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(4x4)
封裝/外殼: 28-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9791/MAX9792
Windows Vista-Compliant Class D Speaker
Amplifiers with DirectDrive Headphone Amplifiers
16
______________________________________________________________________________________
1.00ms/div
LINE-TRANSIENT RESPONSE
CH1 LOW
4.560V
CH1 HIGH
5.500V
CH2 HIGH
1.000mV
CH2 LOW
800.0
V
MAX9791 toc50
100ms/div
LOAD-TRANSIENT RESPONSE
ILDO_OUT
50mA/div
MAX9791 toc51
AC-COUPLED
VLDO_OUT
10mV/div
200
s/div
SHUTDOWN RESPONSE
LDO_EN
2V/div
MAX9791 toc52
VLDO_EN
2V/div
CROSSTALK vs. FREQUENCY
SPEAKER TO LDO
MAX9791
toc53
FREQUENCY (kHz)
CROSSTALK
(dB)
10
1
0.1
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-130
0.01
100
BOTH SPEAKERS WITH SIGNAL
PSPKR = 1.2W
RLSPKR = 8W
ILDO = 10mA
LEFT CHANNEL TO LDO
RIGHT CHANNEL TO LDO
Typical Operating Characteristics (continued)
(VAVDD = VPVDD = VHPVDD = 5V, VGND = VPGND = VCPGND = 0, ILDO_OUT = 0, CLDO = 2 x 1F, C1 = C2 = 1F. RL = ∞, unless oth-
erwise specified. RIN1 = 20k (AVSPKR = 12dB), RIN2 = 40.2k (AVHP = 0dB), CIN1 = 470nF, CIN2 = CCOM = 1F, measurement BW
= 20kHz AES17, TA = +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, HP_EN = 0. Headphone mode: SPKR_EN = 1,
HP_EN = 1.)
LDO
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