參數(shù)資料
型號(hào): ADAU1381BCPZ-RL7
廠商: Analog Devices Inc
文件頁數(shù): 56/84頁
文件大?。?/td> 0K
描述: IC AUDIO CODEC STEREO LN 32LFCSP
標(biāo)準(zhǔn)包裝: 1,500
類型: 立體聲音頻
數(shù)據(jù)接口: 串行,SPI?
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變:
S/N 比,標(biāo)準(zhǔn) ADC / DAC (db): 97 / 100
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) ADC / DAC (db): 96.5 / 100
電壓 - 電源,模擬: 1.8 V ~ 3.65 V
電壓 - 電源,數(shù)字: 1.63 V ~ 3.65 V
工作溫度: -25°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ
包裝: 帶卷 (TR)
配用: EVAL-ADAU1381Z-ND - BOARD EVALUATION FOR ADAU1381
ADAU1381
Rev. B | Page 6 of 84
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
Dynamic Range
60 dB input
With A-Weighted Filter (RMS)
AVDD = 1.8 V
99
dB
AVDD = 3.3 V
105
dB
No Filter (RMS)
AVDD = 1.8 V
96
dB
AVDD = 3.3 V
102
dB
Beep Input Mute Attenuation
AVDD = 3.3 V; mute set by
Register 0x4008, Bit 3
90
dB
Offset Error
AVDD = 3.3 V
10
mV
Gain Error
AVDD = 3.3 V
0.3
dB
Interchannel Gain Mismatch
30
mdB
Beep Input PGA Gain Range
AVDD = 3.3 V
23
+32
dB
Beep Playback Mixer Gain Range
AVDD = 3.3 V
15
+6
dB
Power Supply Rejection Ratio
CM capacitor = 10 μF
AVDD = 3.3 V, 100 mV p-p at 217 Hz
58
dB
AVDD = 3.3 V, 100 mV p-p at 1 kHz
72
dB
MICROPHONE BIAS
Microphone bias enabled
Bias Voltage
0.65 × AVDD
AVDD = 1.8 V, low bias
1.17
V
AVDD = 3.3 V, low bias
2.145
V
0.90 × AVDD
AVDD = 1.8 V, high bias
1.62
V
AVDD = 3.3 V, high bias
2.97
V
Bias Current Source
AVDD = 3.3 V, high bias, high
performance
5
mA
Noise in the Signal Bandwidth
AVDD = 3.3 V, 20 Hz to 20 kHz
High bias, high performance
39
nV√Hz
High bias, low performance
78
nV√Hz
Low bias, high performance
25
nV√Hz
Low bias, low performance
35
nV√Hz
AVDD = 1.8 V, 20 Hz to 20 kHz
High bias, high performance
35
nV√Hz
High bias, low performance
45
nV√Hz
Low bias, high performance
23
nV√Hz
Low bias, low performance
23
nV√Hz
OUTPUT SIDE PERFORMANCE SPECIFICATIONS
Specifications guaranteed at 25°C (ambient). The output load for the speaker output path is an 8 Ω, 400 mW speaker.
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
All DACs
24
Bits
Digital Attenuation Step
0.375
dB
Digital Attenuation Range
95
dB
DAC TO LINE OUTPUT PATH
Full-Scale Output Voltage (0 dB)
Scales linearly with AVDD
AVDD/3.3
V rms
AVDD = 1.8 V
0.55 (1.56)
V rms (V p-p)
AVDD = 3.3 V
1.0 (2.83)
V rms (V p-p)
Line Output Mute Attenuation,
DAC to Mixer Path Muted
AVDD = 3.3 V; mute set by Register
0x401C, Bit 5, and Register 0x401E, Bit 6
85
dB
Line Output Mute Attenuation,
Line Output Muted
AVDD = 3.3 V; mute set by Register
0x4025, Bit 1, and Register 0x4026, Bit 1
85
dB
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