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參數資料
| 型號： | COD0419X |
| 元件分類： | Codec |
| 英文描述： | COD0419X Sigma-Delta Voice CODEC|Data Sheet |
| 中文描述： | COD0419XΣ-Δ語音編解碼器|數據資料 |
| 文件頁數： | 4/15頁 |
| 文件大?。?/td> | 548K |
| 代理商： | COD0419X |
SEC ASIC
cod0408x_r1
Voice Band Signal Interface
ANALOG
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Value
Unit
Supply Voltage
VDD25A1
VDD25A2
VDD18A3
2.5
2.5
1.8
V
Analog Input Voltage
-
VSSA1 to VDD25A1
VSSA2 to VDD25A2
V
Digital Input Voltage
-
VSSA3 to VDD25A3
V
Digital Output Voltage
V
OH
, V
OL
VSSA3 to VDD25A3
V
Storage Temperature Range
Tstg
-45 to 125
oC
NOTES
1. ABSOLUTE MAXIMUM RATING specifies the values beyond which the device may be damaged permanently.
Exposure to ABSOLUTE MAXIMUM RATING conditions for extended periods may affect reliability. Each
condition value is applied with the other values kept within the following operating conditions and function
operation under any of these conditions is not implied.
2. All voltages are measured with respect to VSS unless otherwise specified.
3. 100pF capacitor is discharged through a 1.5K
resistor (Human body model)
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol
Min
Typ
Max
Unit
Supply Voltage
VDD25A1,VDD25A2
VDD18A3
2.25
1.62
2.5
1.8
2.75
1.98
V
V
Supply Voltage Difference
VDD25A1, VDD25A2,
VDD18A3
-0.1
0.0
0.1
V
Digital Input Voltage
1.62
1.8
1.98
V
Analog Input Voltage
1.6
Vp-p
Operating Temperature
Topr
0
-
70
oC
NOTES
1. It is strongly recommended that all the supply pins (VDD25A1, VDD25A2) be powered from the same source to
avoid power latch-up.
AC ELECTRICAL CHARACTERISTICS
(Measurement Bandwidth is 20Hz
~
4KHz. Full scale input sine wave 1KHz, FS=8KHz, @VDD25A1=2.5V,
VDD25A2=2.5V, VDD18A3=1.8V Ta=25oC,Unless otherwise specified.)
Characteristics
Symbol
Min
Typ
Max
Unit
Conditions
Resolution
-
14
-
Bits
Sampling rate
-
8
-
KHz
-
ADC Characteristics
* Signal to Distortion Ratio
-
65
-
dB
0dB Input : Linear
Offset Error
-
-
±
20
mV
-
Input Voltage Range
-
1.6
-
Vpp
-
4 / 14
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