参数资料
型号: MAX9853ETM+
厂商: Maxim Integrated Products
文件页数: 56/71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
6
_______________________________________________________________________________________
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
DAC VOICEBAND LOWPASS FILTER (S1 Mono Voice Audio Input Path, fS = 16kHz)
Stopband Cutoff
fPL
7000
Hz
Passband Ripple
f < fPL
±0.05
dB
Stopband Cutoff
fSL
7800
Hz
Stopband Attenuation
f > fSL
75
dB
DAC ADJUSTABLE HIGHPASS FILTER
DC Attenuation
DCATT
Register 0x07 bits [3:0] = 0x5, 0xA, or 0xF
90
dB
Register 0x07 [3:0] = 0x5
55
91
Register 0x07 [3:0] = 0xA
171
279
Highpass Cutoff (-3dB)
fP
Register 0x07 [3:0] = 0xF
327
533
Hz
DAC INPUT GAIN CONTROL (Register 0x0C and 0x0D)
Gain Control Range
For both input data interfaces
-96
0
dB
ADC DC ACCURACY
Gain Error
±1
±7
%
Full-Scale Conversion
0dBFS
fIN = 1kHz, line input, PGA = 0dB
2.05
VP-P
Channel Gain Matching
±1
%
ADC DYNAMIC SPECIFICATIONS (Note 8)
BW = 22Hz to fS / 2 (8kHz voice modes)
73
75
TA = +25°C
77
82
BW = 22Hz to 20kHz
(48kHz stereo audio
modes, A-weighted)
TA = TMIN to TMAX
71
Dynamic Range (Note 6)
DR
BW = 22Hz to fS / 2 (8kHz audio mode)
-85.5
dB
1kHz, 0dBFS, fS = 8kHz (voice mode)
-85.5
Total Harmonic Distortion
THD
1kHz, 0dBFS, fS = 48kHz (stereo audio
mode)
-85.5
dB
1kHz, 0dBFS, fS = 8kHz (voice mode)
75
1kHz, 0dBFS, fS = 48kHz (stereo audio
mode, A-weighted)
81.5
Signal-to-Noise Ratio
SNR
1kHz, 0dBFS, fS = 8kHz (stereo audio
mode, A-weighted)
87.5
dB
Channel Crosstalk
Driven channel at -1dBFS, fIN = 1kHz, fS =
48kHz (from MICL to ADCR or MICR to
ADCL)
-75
dB
AVDD = 2.6V to 3.3V
48
63
f = 217Hz, VRIPPLE = 100mVP-P
63
Power-Supply Rejection Ratio
(Note 9)
PSRR
f = 10kHz, VRIPPLE = 100mVP-P
50
dB
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