msm7570al-01 Oki Semiconductor, msm7570al-01 Datasheet - Page 14

• Manufacturer Part Number: msm7570al-01
• Description: Multi-function Adpcm Codec
• Manufacturer: Oki Semiconductor

AC Characteristics (Continued)
*1
*2
*3
Note: All ADPCM coder and decoder characteristics comply with ITU-T Recommendation G.726.
1Semiconductor
Idle Channel Noise
Absolute Signal
Amplitude
Power Supply Noise
Rejection Ratio
Digital Output
Delay Time
PCM and ADPCM
Interface
Serial Port Digital
Input/Output Setting
Time
Shift Clock
Frequency
Use the P-message weighted filter.
PCMRI input code “11010101” (A-law)
0.320 Vrms = 0 dBm0 = 7.7 dBm
Parameter
Symbol
P
P
N
f
N
“11111111” ( -law)
t
t
A
t
t
t
t
t
t
t
t
EXCK
A
SRRR
t
t
t
t
t
t
t
t
t
SRRT
SDX
SDR
XD1
RD1
XD2
RD2
XD3
RD3
M10
M11
IDLT
IDLR
M1
M2
M3
M4
M5
M6
M7
M8
M9
VR
VT
: 0 to 50 kHz
Noise Freq.
Freq.
1020
(Hz)
—
—
—
—
—
Condition
1LSTTL+100pF,
Pull-up: 500
C
Noise Level
AIN = SG
: 50 mV
L
(dBm0)
= 100 pF
Level
—
—
0
pp
Others
GSX2
EXCK
VFR0
Fig. 4
Fig. 5
(V
(*1)
(*1)
(*2)
See
See
—
DD
= 2.7 V to 3.6 V, Ta = 25 C to +70 C)
0.285
0.285
Min.
100
30
30
50
50
50
50
30
30
20
20
—
—
—
0
0
0
0
0
0
0
0.320
0.320
Typ.
(*3)
(*3)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MSM7570AL-01/02
( 75.7)
( 79.7)
0.359
0.359
Max.
200
200
200
200
200
50
50
10
—
—
—
—
—
—
—
—
—
—
—
68
72
(dBmp)
dBm0p
Vrms
Vrms
MHz
Unit
dB
dB
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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