IL34118 Datasheet, PDF (10/12 Pages) Integral Corp. – Voice Switched Speakerphone Circuit

IL34118
ELECTRICAL CHARACTERISTICS(T_A = -25 to +70°C, V_CC = 5.0 V , CD = 0.8 V, unless noted)
Guaranteed
Symbol
Parameter
Test Conditions
Limits
Unit
Min Max
∆V_RXO ∆RXO DC Voltage
Rx to Tx Mode
-
±190 mV
V_RXOH RXO High Voltage
I_OUT= -1.0 mA,RXI=V_B+1.5V,
2.8
-
V
V_CT=2.6 V
V_RXOL RXO Low Voltage
I_OUT= +1.0 mA,RXI=V_B-1.0V,
V_CT=2.6 V
Output measured with respect to
V_B
-
V_B-0.75 V
R_RXI RXI Input Resistance
RXI=350 mVrms, f = 1.0 KHz
5.25
17.5
kΩ
G_TX
G_TXI
∆G_TXI*
Trasmit Attenuator Gain
( f =1.0 KHz)
Tx Mode, TXI=150 mVrms
Idle Mode, RXI=-150 mVrms
Range (Tx to Rx Mode)
1.5
10.0
dB
-25
-15
49
54
∆V_TXO
V_TXOH
∆TXO DC Voltage
TXO High Voltage
V_TXOL TXO Low Voltage
R_TXI TXI Input Resistance
Tx to Rx Mode
-
I_OUT= -1.0 mA,TXI=V_B+1.5V,
2.8
V_CT=1.6 V
I_OUT= +1.0 mA,TXI=V_B-1.0V,
-
V_CT=1.6 V
Output measured with respect to
V_B
TXI=350 mVrms, f = 1.0 KHz
5.25
ATTENUATOR CONTROL
I_CTR C_T Source Current (switching f = 1 KHz, V_LC = V_B =CT
-106
to Rx mode)
I_CTT C_T Sink Current (switching to f = 1 KHz, V_LC = V_B =CT
+30
Tx mode)
R_FI*
C_T Fast Idle Internal
1.5
Resistance
V_DT* Dial Tone Detector Threshold
10
MICROPHONE AMLIFIER (V_MUT ≤ 0.8 V, A+ = 31 dB, unless otherwise noted)
MCO_VOS Output Offset
V_MCO - V_B,
-62
Freedback R= 180 KΩ
A_VOLM Open Loop Gain
f = 100 Hz
60
V_MCOH
V_MCOL
GMT
Output High Voltage
Output LowVoltage
Muting (∆Gain)
R_MUT MUT Input Resistance
I_OUT=-1.0 mA,V_MCI=V_B+1.5 V
2.8
I_OUT=1.0 mA, V_MCI=V_B - 1.0 V
-
f = 1.0 Khz,V_MCI = 150 mV
52
0.8 V ≤ V_MUT ≤ 2.0 V
V_CC = V_MUT = 6.5 V
37.5
V_MUTH MUT Input-High
2.0
V_MUTL MUT Input-Low
0
±190 mV
-
V
V_B-0.75 V
17.5 KΩ
-30
µA
+106 µA
3.6
KΩ
20
mV
+62 mV
-
dB
-
V
250
mV
-
dB
-
KΩ
V_CC
V
0.8
V
(continued)
10