KA2425A Datasheet, PDF (2/6 Pages) Samsung semiconductor – SPEECH NETWORK WITH DIALER INTERFACE

KA2425A
SPEECH NETWORK WITH DIALER INTERFACE
ABSOLUTE MAXIMUM RATINGS
Characteristic
V+ Voltage
VDD (V+ = 0)
MT,MS inputs
VLR
Storage Temperature
Symbol
VC
VDD
VM
VLR
TSTG
Value
-1.0 ~ +18
-1.0 ~ +6
-1.0 ~ VDD +1
-1.0V~ V+ -3.0
-65 ~ +150
RECOMMENDED OPERATING CONDITIONS
Characteristic
Symbol
ITXO (Instantaneous)
V+ (Voltage :Speech Mode
Tone Dialing Mode
Operating Temperature
ICC
V+ (SM)
V+(TM)
TORR
(Ta = 25°C)
Value
0 ~ 10
+1.5 ~ +15
+3.3 ~ +15
-20 ~ +60
ELECTRICAL CHARACTERISTICS (Ta = 25°C)
Characteristic
Symbol
Test Conditions
SYSTEM SPECTIFICATIONS (Refer to Fig.3 and Fig.4)
TX Gain from VS to V+
Gain Change
Distortion
Output Noise
RX
VRXO / VS
RX Gain Change
Distortion
DTMF Driver
V+ / VIN
Sidetone Level
VRXO / V+
Sidetone Rejection
GV (TX)
∆GV (TX)
THD TX
VNO (TX)
GV (RX)
∆GV (RX)
THD RX
GV (MF)
GV (ST)
Figure (IL = 20mA)
IL = 60mA
f = 1.0KHZ, IL = 20mA
(See Figure.4) IL = 60mA
IL = 20mA
IL = 20mA
IL = 60mA
VRXO
{ _V+
(Figure 4)}dB -
{ ^VRXO
V+
(Figer 3)} dB
RST
IL = 20mA
Tip-Ring Voltage (including polarity
guard
VTR
bridge drop of 1.4v)
(Speech Mode)
IL = 5.0mA
IL = 10mA
IL = 20mA
IL = 40mA
IL = 60mA
AC impedance
Speech mode (incl. C6,See Figure 4)
Zac
Zac = (600)V +/ (VS - V+)
Tone Mode (including C6)
None : Typicals are tested or guaranteed.
IL = 20mA
IL = 60mA
20mA < IL , 60mA
Unit
V
V
V
V
°C
Unit
mA
V
V
°C
Min Typ Max Unit
28
29.5
31
dB
-6.0 -4.5 -3.6
dB
-
2.0
-
%
-
11
-
dBmc
-16
-15
-13
dB
-5.0 -3.0 -2.0
dB
-
2.0
-
%
3.2
4.8
6.2
dB
-
-28
-
dB
-
-13
-
12
18
-
dB
-
2.4
-
-
3.9
-
-
4.6
-
VDC
-
5.6
-
-
6.6
-
-
750
-
-
300
-
Ω
-
1650
-