msm7715 Oki Semiconductor, msm7715 Datasheet - Page 7

• Manufacturer Part Number: msm7715
• Description: Multi-function Telecommunication Lsi
• Manufacturer: Oki Semiconductor

¡ Semiconductor
AC Characteristics (DTMF)
Transmit Level
Transmit Signal Level
Relative Value
Transmit Frequency
Deviation
Transmit Signal
Distortion Rate
DTG1 to DTG4 Input Data
Setup Time
DTG1 to DTG4 Input Data
Hold Time
Receive Detect Level
Receive Reject Level
Receive Frequency
Detect Band
Receive Frequency
Reject Band
Allowable Receive Level
Difference
Allowable Receive
Noise Level ratio
Dial Tone Reject Ratio
Signal Repetition Time
Tone Time for Detect
Tone Time for No Detect
Output Delay Time
Interdigit Pause Time
Acceptable Drop Out Time
SP Delay Time
Output Trailing Edge
Delay Time
Parameter
Symbol
V
V
THD
V
V
f
f
V
V
V
DETDT
REJDT
REJ400
f
t
V
t
DETDT
REJDT
TWIST
t
t
t
t
t
t
DTTH
DTTL
DTDF
DDT
HDT
t
t
t
t
t
t
t
t
t
t
SDT
G11
G12
G21
G22
SP1
SP2
t
t
D1
D2
N/S
C1
C2
S1
S2
P1
P2
B1
B2
I1
I2
DT
AOUT, R1 = R3
High-group tone/low-group tone
With respect to the nominal frequency
Harmonics/Fundamental frequency
See Fig. 2.
See Fig. 2.
For each single tone
For each single tone
With respect to the nominal frequency
With respect to the nominal frequency
High-group tone/low-group tone
Noise (0.3 kHz to 3.4 kHz)
level/tone level
380 Hz to 420 Hz
See Fig. 1
Normal
condition *2
Just after
mode change *3
t
t
S
S
> 80 ms
> 44 ms
Condition
Low-group tone
High-group tone
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
DTTIM = "1"
DTTIM = "0"
(V
DD
= 2.5 V to 3.6 V, Ta = –40°C to +85°C)
–16.5
–15.5
Min.
–1.5
±3.8
250
250
–46
120
—
—
—
–6
—
37
70
49
34
—
—
30
20
30
20
30
21
—
—
21
15
0
6
1
–14.5
–13.5
Typ.
–12
1.7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
45
32
48
35
—
—
—
—
29
21
1
8
Max.
–12.5
–11.5
+1.5
±1.5
–23
–10
–60
MSM7715
—
—
—
+6
—
—
—
—
—
—
24
57
42
77
62
—
—
10
10
35
27
2
9
3
3
Unit
dBm
dBm
7/21
ms
dB
dB
dB
*1
ns
*1
%
%