ml7084-001 Oki Semiconductor, ml7084-001 Datasheet - Page 18
ml7084-001
Manufacturer Part Number
ml7084-001
Description
4ch Voip Codec
Manufacturer
Oki Semiconductor
Datasheet
1.ML7084-001.pdf
(225 pages)
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PDNB, XO, AVREF Timings
(Unless otherwise specified, AVDD = 3.0 to 3.6 V, DVDD = 3.0 to 3.6 V, AGND = DGND = 0.0 V, Ta = −20 to
+60°C)
Note:
The capacitance of the capacitor for AVREF affects the AVREF rise time and analog characteristics. To place more
importance on analog characteristics, set the capacitance to 4.7 μF; to place more importance on the AVREF rise
time, set it to 2.2 μF. Since the use of an analog interface is prohibited in this code, connect a capacitor of
2.2 μF or 4.7 μF.
OKI Semiconductor
Power down signal pulse
width
AVREF rise time
AVDD supply delay time
Oscillation start-up time
VREGOUT
AVREF
DVDD
AVDD
PDNB
Parameter
XO
t
DVDD AVDD
AVDDON
t
90%
PDNB
90%
tAVDDON
tAVREF
Symbol
tPDNB
Figure 1 PDNB, XO, and AVREF Timings
txtal
txtal
t
AVREF
AVREF = 1.4 (90%)
AVREF =1.4 (90%)
4.7 μF+0.1 μF
2.2 μF+0.1 μF
Conditions
PDNB pin
⎯
⎯
Min.
250
⎯
⎯
⎯
0
Typ.
⎯
⎯
⎯
⎯
⎯
FEDL7224-001FULL-01
Max.
600
300
ML7224-001TC
⎯
⎯
10
Approx.
2.5 V
Approx.
1.4 V
DVDD
AVDD
0V
0 V
DVDD
0 V
AVDD
0 V
0 V
Unit
ms
ms
ms
μs
ns
18/225
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