¡ Semiconductor
MSM7570L-01/02
AC Characteristics (Continued)
(VDD = 2.7 V to 3.6 V, Ta = –25°C to +70°C)
Condition
Parameter
Symbol Freq.
(Hz)
Level
(dBm0)
Min.
Others
Typ.
Max. Unit
Idle Channel Noise
NIDLT
—
NIDLR
—
AIN = SG
(*1)
—
(*1)
—
—
(*2)
–68
—
(–75.7) dBmOp
–72 (dBmp)
—
(–79.7)
Absolute Signal
Amplitude
AVT
1020
AVR
0.320
GSX2 0.285
0.359 Vrms
(*3)
0
0.320
VFRO 0.285
0.359 Vrms
(*3)
Power Supply Noise
PSRRT Noise Freq. Noise Level
—
30
—
—
dB
Rejection Ratio
PSRRR : 0 to 50 kHz : 50 mVPP
30
—
—
dB
tSDX
0
—
200 ns
tSDR
0
—
200 ns
Digital Output
Delay Time
PCM and ADPCM
Interface
tXD1
0
tRD1
1 LSTTL + 100 pF, See
—
tXD2
Pull-up: 500 W Fig.4
0
tRD2
—
200 ns
—
200 ns
tXD3
0
—
200 ns
tRD3
tM1
50
—
—
ns
tM2
50
—
—
ns
tM3
50
—
—
ns
tM4
50
—
—
ns
Serial Port Digital
tM5
CL = 100 pF
100
—
—
ns
Input/Output Setting
tM6
—
See 50
—
—
ns
Time
tM7
Fig.5 50
—
—
ns
tM8
0
—
50
ns
tM9
50
—
—
ns
tM10
50
—
—
ns
tM11
0
—
50
ns
Shift Clock Frequency
fEXCK
—
—
EXCK —
—
10 MHz
*1 Use the P-message weighted filter
*2 PCMRI input code "11010101"(A-law)
"11111111"(m-law)
*3 0.320 Vrms = 0 dBm0 = –7.7 dBm
Note: All ADPCM coder and decoder characteristics comply with ITU-T Recommendation
G.726.
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