参数资料
型号: MAX9753ETI+T
厂商: Maxim Integrated Products
文件页数: 25/29页
文件大小: 0K
描述: IC AMP AUDIO PWR 2.2W D 28TQFN
标准包装: 2,500
系列: DirectDrive®
类型: D 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 2.2W x 2 @ 4 欧姆; 62mW x 2 @ 16 欧姆
电源电压: 4.5 V ~ 5.5 V
特点: 消除爆音,输入多路复用器,短路和热保护,关机
安装类型: 表面贴装
供应商设备封装: 28-TQFN-EP(5x5)
封装/外壳: 28-WFQFN 裸露焊盘
包装: 带卷 (TR)
MAX9752/MAX9753/MAX9754
2.2W, Low-EMI, Stereo, Class D Power Amplifiers
with DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = HPVDD = CPVDD = +5.0V, GND = PGND = HPGND = 0V, VSHDN = VDD, CPVSS = VSS, CBIAS = 1F,
CCPVSS = 1F, C1 = 1F, speaker impedance = 8
Ω connected between OUT_+ and OUT_-, headphone load is terminated to GND;
MAX9752: GAIN1 = GAIN2 = 0, VVOL = 0V; MAX9753: GAIN = 0, VA/B = 0V; MAX9754: GAIN = 0; TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Gain 10.5dB to 13.5dB
±0.2
Gain 6.0dB to 10.0dB
±0.2
Gain -26dB to +4.0dB
±0.3
Channel Matching
Gain -62dB to +30dB
±1.0
dB
BEEP INPUT (MAX9752 Only)
Beep Signal Minimum Amplitude
(Note 8)
VBEEP
RBEEP = 47k
Ω
400
mV
Beep Signal Minimum Frequency
fBEEP
300
Hz
LOGIC INPUTS (GAIN_, IN1
////22
2
2,
SHDN, HPS)
Input High Voltage
VIH
2.0
V
Input Low Voltage
VIL
0.8
V
GAIN_,
SHDN
-1
+1
IN1/
2
-2
+2
Input Leakage Current
ILEAK
HPS
-20
+1
A
Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Speaker amplifier testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For
RL = 4
Ω, L = 33H. For RL = 8Ω, L = 68H.
Note 3: Measured with the amplifier input connected to GND through CIN.
Note 4: Speaker amplifier gain is defined as A = (VOUT_+ - VOUT_-) / VIN_.
Note 5: Testing performed with 8
Ω resistive load in series with 68H inductive load connected across the BTL output. Mode transitions
are controlled by SHDN. Peak reading, THD+N = 1%, A-weighted, 32 samples per second. KCP level is calculated as:
20 x log[(peak voltage under normal operation at rated power level) / (peak voltage during mode transition, no input signal)].
Note 6: Headphone amplifier gain is defined as A = VHP_ / VIN_.
Note 7: Testing performed with 32
Ω resistive load connected from HP_ output to GND. Mode transitions are controlled by SHDN.
Peak reading, THD+N = 1%, A-weighted, 32 samples per second. KCP level is calculated as:
20 x log[(peak voltage under normal operation at rated power level) / (peak voltage during mode transition, no input signal)].
Note 8: The value of RBEEP dictates the minimum beep signal amplitude that is detected (see the Beep Input (MAX9752) section).
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