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參數資料
| 型號： | COD0421X |
| 元件分類： | Codec |
| 英文描述： | COD0421X Voice Signal Interface Codec|Data Sheet |
| 中文描述： | COD0421X語音信號接口編解碼器|數據資料 |
| 文件頁數： | 5/15頁 |
| 文件大?。?/td> | 548K |
| 代理商： | COD0421X |
SEC ASIC
cod0408x_r1
Voice Band Signal Interface
ANALOG
DAC Characteristics
* Signal to Distortion Ratio
-
65
-
dB
0dB Input : Linear
Offset Error
.
.
±
20
mV
-
Output Voltage Range
-
1.6
3.2
-
-
Vpp
Vpp
-
Differential
PLL Characteristics
Cycle Jitter
-
±
100
-
ps
Duty Ratio
-
45:55
-
%
Lock Time
-
150
-
us
Power Supply
Power consumption
(Operating Mode)
Analog
Digital
6.5
0.5
-
-
mA
mA
No load
-
Power consumption
(Power down mode)
50
uA
TRANSMISSION CHARACTERISTICS
(Measurement Bandwidth is 60Hz
~
4KHz. Full scale, FS=8KHz, @VDD25A1=2.5V, VDD25A2=2.5V, VDD18A3=1.8V Ta=25
oC
,,Unless otherwise specified.)
Characteristics
Test Condition
Min
Typ
Max
Unit
Transmit Gain Variation with
Frequency
Relative to 1000Hz
f = 60Hz
f = 200Hz
f = 300Hz
f = 400Hz ~ 3000Hz
f = 3400Hz]
f = 4000Hz
f = 8000Hz
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-7.9
-1.5
-0.6
-0.2
-1.1
-17.8
-62.8
dB
dB
dB
dB
dB
dB
dB
Receive Gain Variation with
Frequency
Relative to 1000Hz
f = 60Hz
f = 200Hz
f = 300Hz
f = 400Hz ~ 3000Hz
f = 3400Hz]
f = 4000Hz
-
-
-
0.6
-
-
-
-
-
-
-
-
-8.2
-1.4
-0.6
-0.2
-0.7
-17.8
dB
dB
dB
dB
dB
dB
Transmit Delay
f = 60hz ~ 3000Hz
-
-
750
us
Receive Delay
f = 60Hz ~ 3000Hz
-
-
750
us
CONTROL CLOCKS CHARACTERISTICS
Characteristics
Symbol
Min
Typ
Max
Unit
OMCLK Frequency
Fomclk
-
2.048
-
MHz
OMCLK Duty Cycle (H/L)
OMcDuty
-
50:50
-
%
OFSYNC Frequency
Fosync
-
8
-
KHz
OFSYNC High Period
Tosynch
488
ns
IMCLK Frequency
Fimclk
-
2.048
-
MHz
IMCLK Duty Cycle (H/L)
IMcDuty
-
50:50
-
%
IFSYNC Frequency
Fisync
-
8
KHz
IFSYNC High Period
Tisynch
244
488
ns
5 / 14
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