KA2425 データシートの表示（PDF） - Samsung
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KA2425 Datasheet PDF : 6 Pages
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KA2425A
SPEECH NETWORK WITH DIALER INTERFACE
ECTRICAL CHARACTERISTICS (Continued)
Characteristic
Symbol
SYSTEM AMPLIFIERS
TX
Gain
TXO Bias Voltage
TXO Bias Voltage
TXO Bias Voltage
TXO Bias Voltage
TXI input Resistance
GV (TX)
VBIAS (SPM)
VBIAS (TM)
VOL (SPM)
VOL (SPM)
RI (TXI)
RX
RXO Bias voltage
RXO Source current
RXO Source current
RXO High Voltage
RXO Low Voltage
VBIAS (AM)
ISOURCE (SM)
ISOURCE (PTM)
VOH (AM)
VOL (AM)
SIDETONE AMPLIFIER
Gain (TXO to STA)
Speech Mode
Speech Mode
GV (STA)
Pulse Mode
Pulse Mode
STA Bias Voltage
VBIAS (STA)
MICROPHONE, RECEIVER CONTROLS
MIC Saturation Voltage
VSAT (MIC)
MIC Leakage Current
ILKG (MIC)
RMT Resistance
RRMT (SM)
RRMT (DM)
RMT Delay
EQUALIZATION AMPLIFIER
tD (RMT)
GAIN (V + to EQ)
Speech Mode
Speech Mode
Pulse Mode
GV (EQ)
Pulse Mode
EQ Bias Voltage
Speech Mode
Pulse Mode
VBIAS (EQ)
Speech, Pulse Mode
Test Conditions
TXI to TXO
Speech/Pulse Mode
Tone Mode
Speech/Pulse Mode
Speech/Pulse Mode
All Mode
Speech Mode
Pulse/tone Mode
All Mode
All Mode
@VLR = 0.5V
@VLR = 2.5V
@VLR = 0.2V
@VLR = 1.0V
All Modes
Speech Mode,1 = 500µA
Dialing Mode, Pin 1=3.0V
Speech Mode
Dialing Mode
Dialing to Speech
@ VLR = 0.5V
@ VLR = 2.5V
@ VLR = 0.2V
@ VLR = 1.0V
@ VLR = 0.5V
@ VLR = 0.5V
@ VLR = 2.5V
Min
Typ
24
0.45
VR -25
VR -25
-
-
26
0.52
VR -5.0
VR -5.0
125
10
0.45
1.5
200
VR -100
-
0.52
2.0
400
VR -50
50
-
-15
-
-21
-
-15
-
-21
0.65
0.8
-
50
-
0
-
8.0
5.0
10
2.0
4.0
-
-12
-
-2.5
-
-12
-
-2.5
-
0.66
-
1.3
-
3.3
Max
28
0.60
-
-
250
-
0.60
-
-
-
150
-
-
-
-
0.9
125
5.0
15
18
20
-
-
-
-
-
-
-
Unit
dB
xVR
mV
mV
mV
KΩ
xVR
mA
µA
mV
mV
dB
xVR
mV
µA
Ω
KΩ
ms
dB
Vdc
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