¡ Semiconductor
AC Characteristics (Continued)
Condition
Parameter
Symbol
Freq.
(Hz)
N
IDLT
Idle Channel Noise
N
IDLR
A
VT
1020
A
VR
P
SRRT
t
SDX
Digital Output
Delay Time
t
SDR
t
XD1
t
XD2
t
XD3
—
1 LSTTL + 100 pF,
Pull-up: 500
W
—
Noise Freq.
Noise Level
: 50 mV
PP
0
VFRO
—
0.285
30
30
50
50
50
50
50
—
—
—
Level
(dBm0)
AIN = SG
Others
MSM7540L/7560L
(V
DD
= 2.7 V to 3.6 V, Ta = –25°C to +70°C)
Min.
Typ.
Max.
–68
(–75.7)
–72
(–79.7)
0.359
0.359
—
—
200
200
200
200
200
Vrms
Vrms
dB
dB
ns
ns
ns
ns
ns
dBm0p
(dBmp)
Unit
(*1)
(*1)
(*2)
GSX2
—
—
0.285
—
—
0.320
(*3)
0.320
(*3)
—
—
—
—
—
—
—
Absolute Signal
Amplitude
Power Supply Noise
Rejection Ratio
P
SRRR
: 0 to 50 kHz
*1 Use the P-message weighted filter
*2 PCMRI input code "11010101"(MSM7540L)
"11111111"(MSM7560L)
*3 0.320 Vrms = 0 dBm0 = –7.7 dBm
Note: All ADPCM coder and decoder characteristics comply with ITU-T Recommendation
G.721.
11/15
OKI [ OKI ELECTRONIC COMPONETS ]
