參數(shù)資料
型號: MAX9756ETX+T
廠商: Maxim Integrated Products
文件頁數(shù): 29/31頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 2.3W AB 36TQFN
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: 2.3W x 2 @ 3 歐姆; 130mW x 2 @ 16 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點: 消除爆音,短路保護和熱保護,關機,音量控制
安裝類型: 表面貼裝
供應商設備封裝: 36-TQFN 裸露焊盤(6x6)
封裝/外殼: 36-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9756/MAX9757/MAX9758
2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
_______________________________________________________________________________________
7
CROSSTALK vs. FREQUENCY
(SPEAKER MODE)
MAX9756
toc10
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
10
100k
LEFT TO RIGHT
RIGHT TO LEFT
VIN = 200mVP-P
TURN-ON RESPONSE (SPEAKER MODE)
MAX9756 toc11
10ms/div
SHDN
5V/div
OUT_+
2V/div
OUT_-
2V/div
OUT_+ - OUT_-
50mV/div
TURN-OFF RESPONSE (SPEAKER MODE)
MAX9756 toc12
10ms/div
SHDN
5V/div
OUT_+
2V/div
OUT_-
2V/div
OUT_+ - OUT_-
50mV/div
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9756
toc13
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
VDD = 5V
RL = 16
OUTPUT POWER = 100mW
OUTPUT POWER = 40mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9756
toc14
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
VDD = 5V
RL = 32
OUTPUT POWER = 20mW
OUTPUT POWER = 60mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9756
toc15
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
VDD = 3.3V
RL = 16
OUTPUT POWER = 80mW
OUTPUT POWER = 20mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9756
toc16
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
VDD = 3.3V
RL = 32
OUTPUT POWER = 50mW
OUTPUT POWER = 20mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9756
toc17
OUTPUT POWER (mW)
THD+N
(%)
180
160
140
120
100
80
60
20
0.01
0.1
1
10
100
0.001
0200
HPVDD = 5V
RL = 16
fIN = 100Hz
fIN = 10kHz
fIN = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9756
toc18
OUTPUT POWER (mW)
THD+N
(%)
90
80
70
60
50
40
30
20
10
0.01
0.1
1
10
100
0.001
0100
HPVDD = 5V
RL = 32
fIN = 100Hz
fIN = 10kHz
fIN = 1kHz
Typical Operating Characteristics (continued)
(VDD = PVDD = HPVDD = CPVDD = IN = +5.0V, GND = PGND = CPGND = 0V, SHDN = VDD, REGEN = DR = SET = GND, CBIAS =
1F, CPVSS = 1F, C1 = C2 = 1F, PREF = unconnected, GAIN1 = 1, GAIN2 = GAIN3 = VOL = 0V, measurement BW = 22Hz to
22kHz, TA = +25°C, unless otherwise noted.)
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