參數(shù)資料
型號: IDT821068PX
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 編解碼器
英文描述: OCTAL PROGRAMMABLE PCM CODEC
中文描述: A/MU-LAW, PROGRAMMABLE CODEC, PQFP128
封裝: PLASTIC, QFP-128
文件頁數(shù): 37/45頁
文件大?。?/td> 589K
代理商: IDT821068PX
INDUSTRIAL TEMPERATURE RANGE
IDT821068 OCTAL PROGRAMMABLE PCM CODEC
37
TIMING CHARACTERISTICS
Reset and Clock
Figure 13. Reset and Clock Timing
t6
t6
BCLK
t4
t5
t5
t8
t8
MCLK
t7
t7
t10
t10
DCL
t9
t11
t3
t3
CCLK
t1
t2
t2
Parameter
t0
t1
t2
t3
t4
t5
t6
t7
t8
t9
Description
Min
50
122
48
Typ
Max
Units
μ
s
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions
Reset pulse width
CCLK period
CCLK pulse width
CCLK Rise and Fall Time
BCLK period
BCLK pulse width
BCLK Rise and Fall time
MCLK pulse width
MCLK Rise and Fall time
DCL period F = 2.048 kHz
F = 4.096 kHz
DCL Rise and Fall Time
DCL pulse width
100k
25
122
48
15
48
15
488
244
t10
t11
60
ns
ns
90
Reset
t0
Note: Crosstalk into the transmit channels (VIN) can be significantly affected by parasitic capacitive coupling VOUT outputs. PCB layouts should be arranged to minimize these parasitics.
Intrachannel Crosstalk
Parameter
XT
X-R
XT
R-X
Description
Min
Typ
-80
-80
Max
-70
-70
Units
dB
dB
Test Conditions
Transmit to Receive Crosstalk
Receive to Transmit Crosstalk
300 Hz – 3400 Hz, 0 dBm0 signal into VIN. Idle PCM code into DR.
300 Hz – 3400 Hz, 0 dBm0 PCM code into DR. VIN = 0 Vrms.
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