參數(shù)資料
型號: MAX9789CETJ+T
廠商: Maxim Integrated Products
文件頁數(shù): 4/28頁
文件大?。?/td> 0K
描述: IC AMP AUDIO 2W STER AB 32TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
系列: DirectDrive®
類型: AB 類
輸出類型: 2-通道(立體聲)帶立體聲耳機
在某負載時最大輸出功率 x 通道數(shù)量: 2W x 2 @ 4 歐姆; 100mW x 2 @ 16 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點: 消除爆音,靜音,短路保護和熱保護,關(guān)機
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 32-TQFN-EP(5x5)
封裝/外殼: 32-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9789/MAX9790
Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
12
______________________________________________________________________________________
LINE-TRANSIENT RESPONSE
MAX9789 toc48
1ms/div
LDO_OUT
(AC-COUPLED)
20mV/div
VDD
1V/div
5.5V
4.5V
LDO LOAD-TRANSIENT RESPONSE
MAX9789 toc49
20ms/div
AC-COUPLED
VLDO_OUT
10mV/div
ILDO_OUT
15mA/div
LDO SHUTDOWN RESPONSE
MAX9789 toc50
200ms/div
VLDO_OUT
2V/div
LDO_EN
2V/div
ILOAD = 0mA
LDO CROSSTALK vs. FREQUENCY
FREQUENCY (Hz)
CROSSTALK
(dB)
MAX9789
toc51
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
10
100
1k
10k
100k
VLDO_OUT = 4.75V
POUT = 2W
RL = 4
Ω
IOUT = 0mA
LEFT SPEAKER TO LDO
RIGHT SPEAKER TO LDO
Typical Operating Characteristics (continued)
(VDD = PVDD = CPVDD = HPVDD = LDO_EN = +5V, VGND = VPGND = VCPGND = VLDO_SET = 0V, C1 = C2 = CBIAS = CIN = 1F. RL =
∞, unless otherwise specified, GAIN1 = 0, GAIN2 = 1 (AVSP = 10dB, AVHP = 3.5dB), measurement BW = 20kHz AES17, TA = +25°C,
unless otherwise noted. Headphone mode: SPKR_EN = 1, HP_EN = 0. Speaker mode: SPKR_EN = 0, HP_EN = 1.)
DROPOUT VOLTAGE vs. ILOAD
MAX9789
toc45
ILOAD (mA)
DROPOUT
VOLTAGE
(mV)
125
100
75
50
25
10
20
30
40
50
60
70
80
90
100
0
0150
VLDO_OUT = 4.75V
VLDO_OUT = 3.3V
RIPPLE REJECTION vs. FREQUENCY
MAX9789
toc46
FREQUENCY (Hz)
RIPPLE
REJECTION
(dB)
10k
1k
100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10
100k
VLDO_OUT = 4.75V
VRIPPLE = 200mVP-P
IOUT = 10mA
OUTPUT REFERRED
VLDO_OUT = 3.3V
OUTPUT NOISE vs. FREQUENCY
MAX9789
toc47
FREQUENCY (Hz)
OUTPUT
NOISE
V√
Hz)
10k
1k
100
0.1
1
10
0.01
10
100k
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