參數(shù)資料
型號(hào): ADAU1781BCPZ-RL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 2/92頁(yè)
文件大?。?/td> 0K
描述: IC SIGMADSP CODEC LN 32LFCSP
標(biāo)準(zhǔn)包裝: 1,500
系列: SigmaDSP®
類型: 立體聲音頻
數(shù)據(jù)接口: I²C,串行,SPI?
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變: 無(wú)
S/N 比,標(biāo)準(zhǔn) ADC / DAC (db): 100 / 105(差分),100 / 103(單端)
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) ADC / DAC (db): 99.2 / 105(差分),99.2 / 103(單端)
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)
ADAU1781
Rev. B | Page 10 of 92
Parameter
Mode
Factor
Min
Typ
Max
Unit
DAC INTERPOLATION FILTER
Pass Band
48 kHz mode, typ value is for 48 kHz
0.4535 × f
S
22
kHz
96 kHz mode, typ value is for 96 kHz
0.3646 × f
S
35
69
kHz
Pass-Band Ripple
48 kHz mode, typ value is for 48 kHz
±0.01
dB
96 kHz mode, typ value is for 96 kHz
±0.05
dB
Transition Band
48 kHz mode, typ value is for 48 kHz
0.5 × f
S
24
kHz
96 kHz mode, typ value is for 96 kHz
0.5 × f
S
48
kHz
Stop Band
48 kHz mode, typ value is for 48 kHz
0.5465 × f
S
26
kHz
96 kHz mode, typ value is for 96 kHz
0.6354 × f
S
61
kHz
Stop-Band Attenuation
48 kHz mode, typ value is for 48 kHz
70
dB
96 kHz mode, typ value is for 96 kHz
70
dB
Group Delay
48 kHz mode, typ value is for 48 kHz
25/f
S
521
s
96 kHz mode, typ value is for 96 kHz
11/f
S
115
s
DIGITAL INPUT/OUTPUT SPECIFICATIONS
25°C < TA < +85°C, IOVDD = 1.62 V to 3.63 V, unless otherwise specified.
Table 6.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
HIGH LEVEL INPUT VOLTAGE (V
IH)
0.7 × IOVDD
V
LOW LEVEL INPUT VOLTAGE (V
IL)
IOVDD ≥ 2.97 V
0.3 × IOVDD
V
1.8 V ≤ IOVDD ≤ 2.97 V
0.2 × IOVDD
V
IOVDD < 1.8 V
0.1 × IOVDD
V
INPUT LEAKAGE
I
IH at VIH = 2.4 V
±0.17
A
I
IL at VIL = 0.8 V
±0.17
A
I
IL of MCKI
7
A
I
IH with internal pull-up
±0.7
A
I
IL with internal pull-down
7
A
I
IH with internal pull-up
5
A
I
IL with internal pull-down
±0.18
A
HIGH LEVEL OUTPUT VOLTAGE (V
OH)
For low drive strength, I
OH = 2 mA and IOL = 2 mA
at IOVDD = 3.3 V, I
OH = 0.6 mA and IOL = 0.6 mA at
IOVDD = 1.8 V; for high drive strength, I
OH = 3 mA
and I
OL = 3 mA at IOVDD = 3.3 V, IOH = 0.9 mA and
I
OL = 0.9 mA at IOVDD = 1.8 V
IOVDD 0.4
V
LOW LEVEL OUTPUT VOLTAGE (V
OL)
For low drive strength, I
OH = 2 mA and IOL = 2 mA
at IOVDD = 3.3 V, I
OH = 0.6 mA and IOL = 0.6 mA at
IOVDD = 1.8 V; for high drive strength, I
OH = 3 mA
and I
OL = 3 mA at IOVDD = 3.3 V, IOH = 0.9 mA and
I
OL = 0.9 mA at IOVDD = 1.8 V
0.4
V
INPUT CAPACITANCE
5
pF
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