參數(shù)資料
型號(hào): EVAL-ADAU1442EBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 67/93頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR ADAU1442
標(biāo)準(zhǔn)包裝: 1
系列: SigmaDSP®
主要目的: 音頻,音頻處理
嵌入式: 是,DSP
已用 IC / 零件: ADAU1442
主要屬性: 單芯片多通道 28/56 位音頻 DSP
次要屬性: I²C & SPI 接口
已供物品: 電路板,線纜,說明文檔,GPIO 子板,電源
ADAU1442/ADAU1445/ADAU1446
Data Sheet
Rev. D | Page 6 of 92
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
I/O Sample Rate Ratio
1:8
7.75:1
THD + N
133
120
dB
CRYSTAL OSCILLATOR
Transconductance
40
mS
REGULATOR2
DVDD Voltage
1.65
1.75
1.85
V
Maximum 500 mA load.
1
To calculate the group delay, refer to the SRC Group Delay section.
2
Regulator specifications are calculated using an NJT4030P transistor from On Semiconductor in the circuit.
AVDD = 3.3 V ± 10%, DVDD = 1.8 V ± 10%, PVDD = 3.3 V, IOVDD = 3.3 V ± 10%, TA = 40°C to +105°C, master clock input = 12.288 MHz,
core clock fCORE = 172.032 MHz, I/O pins set to 2 mA drive setting, unless otherwise noted.
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
ANALOG PERFORMANCE
AVDD = 3.3 V ± 10%.
Auxiliary Analog Inputs
Resolution
10
Bits
Full-Scale Analog Input
AVDD
V
Integral Nonlinearity (INL)
2.3
+2.3
LSB
Differential Nonlinearity (DNL)
2.0
+2.0
LSB
Gain Error
2.0
+2.0
LSB
Input Impedance
200
k
Sample Rate
fCORE/896
kHz
4:1 multiplexed input, each
channel at fCORE/3584. For
fCORE = 172.032 MHz, each
channel is sampled at 48 kHz.
DIGITAL I/O
Input Voltage, High (VIH)
0.7 × IOVDD
V
Digital input pins except
SPDIFI.1
Input Voltage, Low (VIL)
0.3 × IOVDD
V
Digital input pins except
SPDIFI.1
Input Leakage, High (IIH) at 3.3 V
2
+2
A
Digital input pins except
MCLK and SPDIFI.
2
+8
A
MCLK.
60
140
A
SPDIFI.
Input Leakage, Low (IIL) at 0 V
85
10
A
All other pins.
2
+2
A
CLKMODEx, RSVD, PLLx,
RESET.
8
+2
A
MCLK.
140
60
A
SPDIFI.
High Level Output Voltage (VOH)
0.85 × IOVDD
V
IOH = 1 mA.
Low Level Output Voltage (VOL)
0.1 × IOVDD
V
IOL = 1 mA.
Input Capacitance (CI)
5
pF
Guaranteed by design.
Multipurpose Pins Output Drive
2
mA
These pins are not designed
for static current draw and
should not drive LEDs directly.
POWER
Supply Voltage
Analog Voltage (AVDD)
2.97
3.3
3.63
V
Digital Voltage (DVDD)
1.62
1.8
1.98
V
PLL Voltage (PVDD)
2.97
3.3
3.63
V
IOVDD Voltage (IOVDD)
2.97
3.3
3.63
V
Supply Current
Analog Current (AVDD)
2
mA
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