參數(shù)資料
型號(hào): MAX9789CETJ+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 27/28頁(yè)
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(lèi)型: AB 類(lèi)
輸出類(lèi)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(lèi)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(pán)
包裝: 帶卷 (TR)
SPEAKER SHUTDOWN WAVEFORM
MAX9789 toc20
20ms/div
2V/div
5V/div
100mV/div
OUT_+ AND OUT_-
OUT_+ - OUT_-
SPKR_EN
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.)
MAX9789/MAX9790
Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
8
_______________________________________________________________________________________
SPEAKER STARTUP WAVEFORM
MAX9789 toc18
20ms/div
2V/div
OUT_+ AND OUT_-
OUT_+ - OUT_-
5V/div
SPKR_EN
100mV/div
MAX9789A/MAX9789C/MAX9790A
SPEAKER STARTUP WAVEFORM
MAX9789 toc19
20ms/div
OUT_+ AND OUT_-
2V/div
OUT_+ - OUT_-
100mV/div
SPKR_EN
5V/div
MAX9789B/MAX9790B
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9789
toc21
FREQUENCY (Hz)
THD+N
(dB
FS)
10k
1k
100
-105
-95
-85
-75
-65
-110
-100
-90
-80
-70
10
100k
FS = 0.300VRMS
RL = 32
Ω
VOUT = -3dB FS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9789
toc22
FREQUENCY (Hz)
THD+N
(dB
FS)
10k
1k
100
-105
-95
-85
-75
-65
-110
-100
-90
-80
-70
10
100k
HPVDD = 3V
FS = 0.300VRMS
RL = 32
Ω
VOUT = -3dB FS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9789
toc23
FREQUENCY (Hz)
THD+N
(dB
FS)
10k
1k
100
-105
-95
-85
-75
-65
-110
-100
-90
-80
-70
10
100k
FS = 0.300VRMS
RL = 16
Ω
VOUT = -3dB FS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9789
toc24
FREQUENCY (Hz)
THD+N
(dB
FS)
10k
1k
100
-105
-95
-85
-75
-65
-110
-100
-90
-80
-70
10
100k
HPVDD = 3V
FS = 0.300VRMS
RL = 16
Ω
VOUT = -3dB FS
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