参数资料
型号: MAX9853ETM+
厂商: Maxim Integrated Products
文件页数: 4/71页
文件大小: 0K
描述: IC CODEC AUDIO STEREO 48TQFN
标准包装: 43
类型: 立体声音频
数据接口: 串行
分辨率(位): 18 b
ADC / DAC 数量: 2 / 2
三角积分调变:
S/N 比,标准 ADC / DAC (db): 81.5 / 88
动态范围,标准 ADC / DAC (db): 82 / 87.5
电压 - 电源,模拟: 2.6 V ~ 3.3 V
电压 - 电源,数字: 1.7 V ~ 3.3 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(7x7)
包装: 管件
MAX9851/MAX9853
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
12
______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = CPVDD = +3V, DVDD = DVDDS2 = +1.8V, PVDD = +3.3V, RHP = 32
Ω, ZSPK = 8Ω + 10H, RREC = 32Ω, ROUTL+ to ROUTL- =
10k
Ω, ROUTR+ to ROUTR- = 10kΩ, C1 = 0.22F, C2 = CNREG = CPREG = CINTMICBIAS, CMBIAS = CREF = 1F, MCLK = 13MHz, all
PGAs = 0dB, HP/REC volume = -20.0dB, SPK volume = -20.4dB, line output gain = -0.4dB, TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (See Functional Diagrams/Typical Operating Circuits).
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Sidetone Volume Control Range
-34.0
+30.5
dB
Sidetone Mute Attenuation
f = 1kHz, sidetone deselected from input
mixer
80
dB
CHARGE PUMP
Charge-Pump Oscillator
Frequency
fOSC
295
650
1200
kHz
MICROPHONE AMPLIFIERS
AVPRE = +20dB
+18.5
+20.5
Preamplifier Gain
AVPRE
EXTMIC_
AVPRE = +20dB
-0.9
+0.4
dB
PGA gain = 0dB
-0.9
+0.4
MIC PGA Gain
AVMICPGA
PGA gain = +20dB
+18.5
+20.5
dB
MIC Mute Attenuation
f = 1kHz
105
dB
Common-Mode Rejection Ratio
CMRR
EXTMIC_, VIN = 100mVP-P at 217Hz,
AVPRE = +20dB
80
dB
INTMIC_, EXTMIC_
-1
+1
MIC Input Voltage Range
EXTMICGND
-0.1
+0.1
V
MIC Input Resistance
RIN_MIC
INTMIC_, EXTMIC_
30
50
70
k
Ω
MIC GND Sense Input
Resistance
RIN_MICS
EXTMICGND
15
25
36
k
Ω
MIC Input Resistance Matching
RMATCH
INTMICP to INTMICN or EXTMICL to
EXTMICR
0.3
%
MIC Input Bias Voltage
VCML
Measured at INTMIC_, EXTMIC_, and
EXTMICGND
-0.1
0
+0.1
V
Input Voltage Noise
EIN_MIC
f = 1kHz, AVPRE = +20dB, RSOURCE = 0
Ω
25
nV/
√Hz
AVPRE = 0dB, AVMICPGA = 0dB,
VIN = 2VP-P, f = 1kHz, BW = 22Hz to 20kHz
0.035
AVPRE = +20dB, AVMICPGA = 0dB,
VIN = 200mVP-P,
f = 1kHz, BW = 22Hz to 20kHz
0.035
Total Harmonic Distortion Plus
Noise
THD+N
AVPRE = +20dB, AVMICPGA = +20dB,
VIN = 20mVP-P, f = 1kHz,
BW = 22Hz to 20kHz
0.06
%
AVDD = 2.6V to 3.3V, TA = +25°C
48
65
dB
VRIPPLE = 100mVP-P at 217Hz,
output referred
65
dB
MIC Power-Supply Rejection
Ratio
PSRR
VRIPPLE = 100mVP-P at 10kHz,
output referred
65
dB
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