參數(shù)資料
型號(hào): MAX9789CETJ+T
廠商: Maxim Integrated Products
文件頁數(shù): 28/28頁
文件大小: 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(biāo)準(zhǔn)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(jī)
在某負(fù)載時(shí)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(diǎn): 消除爆音,靜音,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: 32-TQFN-EP(5x5)
封裝/外殼: 32-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9789/MAX9790
HEADPHONE OUTPUT SPECTRUM
MAX9789
toc30
FREQUENCY (kHz)
AMPLITUDE
(dB)
15
10
5
-80
-60
-40
-20
0
-140
-70
-50
-30
-10
-100
-120
-90
-110
-130
020
FS = 0.707VRMS
VOUT = -60dB FS
RL = 32
Ω
OUTPUT POWER vs. LOAD RESISTANCE
(HEADPHONE MODE)
RL (
Ω)
OUTPUT
POWER
(mW)
MAX9789
toc31
0
50
100
150
10
100
1000
THD+N = 1%
THD+N = 10%
fIN = 1kHz
OUTPUT POWER vs. LOAD RESISTANCE
(HEADPHONE MODE)
RL (
Ω)
OUTPUT
POWER
(mW)
MAX9789
toc32
0
50
100
10
100
1000
HPVDD = 3V
fIN = 1kHz
THD+N = 1%
THD+N = 10%
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.)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9789
toc26
OUTPUT POWER (mW)
THD+N
(%)
60
40
20
0.1
10
0.01
1
0100
80
RL = 32
Ω
f = 1kHz
f = 10kHz
f = 20Hz
CROSSTALK
vs. FREQUENCY (HEADPHONE MODE)
MAX9789
toc29
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
-80
-60
-40
-20
0
-110
-70
-50
-30
-10
-90
-100
10
100k
FS = 0.300VRMS
VOUT = -20dB FS
RL = 32
Ω
LEFT TO RIGHT
RIGHT TO LEFT
Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
9
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9789
toc25
OUTPUT POWER (mW)
THD+N
(%)
150
100
50
0.1
10
0.01
1
0200
RL = 16
Ω
f = 20Hz
f = 10kHz
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9789
toc27
OUTPUT POWER (mW)
THD+N
(%)
100
50
0.1
10
0.01
1
0150
HPVDD = 3V
RL = 16
Ω
f = 1kHz
f = 10kHz
f = 20Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9789
toc28
OUTPUT POWER (mW)
THD+N
(%)
60
40
20
0.1
10
0.01
1
0100
80
HPVDD = 3V
RL = 32
Ω
f = 20Hz
f = 10kHz
f = 1kHz
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