IL34118 Datasheet, PDF (9/12 Pages) Integral Corp. – Voice Switched Speakerphone Circuit

IL34118
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V_CC
Supply Voltage (Pin 4)
V_IN
Input Voltage at CD (Pin 3), MUT (Pin12)
I_VB
V_B Current (Pin 15)
V_IN
Input Voltage at VLC (Pin 13)
V_IN
Attenuator Input Signal Voltage (Pins 9, 21)
G
Microphone Amplifier, Hybrid Amplifier Gain
3.5
6.5
V
0
V_CC
V
500
µA
0.3 x V_B
V_B
V
0
350
mVrms
0
40
dB
I_L
Load Current RXO, TXO Pins 8,22)
MCO (Pin 10)
HTO-, HTO+ (Pins 6,5)
0
2.0
mA
0
1.0
0
5.0
T_A
Operating Temperature
-25
+70
°C
This device contains protection circuitry to guard against damage due to high static voltages or electric
fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, V_IN and V_OUT should be constrained to the range
GND≤(V_IN or V_OUT)≤V_CC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V_CC).
Unused outputs must be left open.
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
POWER SUPPLY
I_CC
V_CC Sypply Current
R_CD CD Input Resistance
V_CC =6.5 V, CD =0.8 V
V_CC =6.5 V, CD =2.0 V
V_CC = V_CD = 6.5 V
-
10
mA
-
1.0
37.5
-
KkΩ
V_CDH CD Input High Voltage
V_CC = V_CD = 6.5 V
V_CDL CD Input Low Voltage
V_CC = V_CD = 6.5 V
V_B
V_B Output Voltage
ATTENUATOR (VLC = V_B, unless noted)
2.0
V_CC
V
0
0.8
V
13.5
3.0
V
G_RX Receive Attenuator Gain
( f =1.0 KHz)
G_RX
∆G_RX1*
∆G_RX2*
G_RX1
∆G_RX3*
V_CR*
Volume Control Range
Rx Mode, RXI=150 mVrms,
1.5
10.0
dB
(V_CC=5.0 V)
Rx Mode, RXI=150 mVrms
1.5
10.0
(V_CC=3.5 V)
Gain Change -V_CC=3.5 V versus
-0.5
+0.5
V_CC =5.0 V
AGC Gain Change - V_CC=2.8 V
-
-15
versus V_CC=5.0 V
Idle Mode, RXI=150mVrms
-25
-15
Range (Rx to Tx Mode)
49
54
Rx Mode, 0.3V_B<V_LC<V_B
27
-
dB
(continued)
9