¡ Semiconductor
MSM7570-01
AC Characteristics (Continued)
Condition
(VDD = 4.5 V to 5.5 V, Ta = –25°C to +70°C)
Parameter
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
Symbol Freq.
(Hz)
Level
(dBm0)
Min.
Others
NIDLT
—
AIN = SG
(*1) —
NIDLR
—
(*1)
—
—
(*2)
AVT
1020
AVR
GSX2 0.488
0
VFRO 0.488
PSRRT Noise Freq. Noise Level
—
30
PSRRR : 0 to 50 kHz : 50 mVPP
30
tSDX
0
tSDR
0
tXD1
0
tRD1
1 LSTTL + 100 pF, See
—
tXD2
Pull-up: 500 W Fig.4
0
tRD2
tXD3
0
tRD3
tM1
50
tM2
50
tM3
50
tM4
50
tM5
CL = 100 pF
100
tM6
—
See 50
tM7
Fig.5 50
tM8
0
tM9
50
tM10
50
tM11
0
fEXCK
—
—
EXCK —
Typ. Max. Unit
—
—
0.548
(*3)
0.548
(*3)
—
—
—
—
—
–68
(–71)
–72
(–75)
dBm0p
(dBmp)
0.615 Vrms
0.615 Vrms
—
dB
—
dB
200 ns
200 ns
200 ns
—
200 ns
—
200 ns
—
—
ns
—
—
ns
—
—
ns
—
—
ns
—
—
ns
—
—
ns
—
—
ns
—
50
ns
—
—
ns
—
—
ns
—
50
ns
—
10 MHz
*1 Use the P-message weighted filter
*2 PCMRI input code "11010101"(A-law)
"11111111"(m-law)
*3 0.548 Vrms = 0 dBm0 = –3.0 dBm
Note: All ADPCM coder and decoder characteristics comply with ITU-T Recommendation
G.726.
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