
MC34118
MOTOROLA
2
ABSOLUTE MAXIMUM RATINGS
Parameter
Value
Units
Supply Voltage (Pin 4)
-- 1.0, + 7.0
Vdc
Voltage at CD (Pin 3), MUT (Pin 12)
-- 1.0, VCC +1.0
Vdc
Voltage at VLC (Pin 13)
-- 1.0, VCC +0.5
Vdc
Voltage at TXI (Pin 9), RXI (Pin 21), FI (Pin 2)
-- 0.5, VCC +0.5
Vdc
Storage Temperature Range
-- 65 to + 150
°C
Devices should not be operated at or outside these values. The “Recommended Operating
Limits” provide for actual device operation.
RECOMMENDED OPERATING LIMITS
Parameter
Min
Typ
Max
Units
Supply Voltage (Pin 4) (See Text)
3.5
—
6.5
Vdc
CD Input (Pin 3), MUT Input (Pin 12)
0
—
VCC
Vdc
IVB Current (Pin 15)
—
500
A
VLC (Pin 13)
0.3 x VB
—
VB
Vdc
Attenuator Input Signal Voltage (Pins 9, 21)
0
—
350
mVrms
Microphone Amplifier, Hybrid Amplifier Gain
0
—
40
dB
Load Current @ RXO, TXO (Pins 8, 22)
@ MCO (Pin 10)
@ HTO--, HTO+ (Pins 6, 5)
0
—
± 2.0
± 1.0
± 5.0
mA
Ambient Operating Temperature Range
-- 20
—
+60
°C
ELECTRICAL CHARACTERISTICS (TA =+25°C, VCC =5.0 V, CD ≤ 0.8 V, unless noted)
Parameter
Symbol
Min
Typ
Max
Units
POWER SUPPLY
VCC Supply Current (VCC =6.5 V, CD =0.8 V)
(VCC =6.5 V, CD =2.0 V)
ICC
—
5.5
600
8.0
800
mA
A
CD Input Resistance (VCC =VCD =6.5 V)
CD Input Voltage — High
— Low
RCD
VCDH
VCDL
50
2.0
0
90
—
VCC
0.8
k
Vdc
VB Output Voltage
(VCC =3.5 V)
(VCC =5.0 V)
VB
—
1.8
1.3
2.1
—
2.4
Vdc
VB Output Resistance (IVB =1.0 mA)
ROVB
—
400
—
VB Power Supply Rejection Ratio (CVB = 220 F,f=1.0kHz)
PSRR
—
54
—
dB
ATTENUATORS (TA =+25°C)
Receive Attenuator Gain (f = 1.0 kHz, VLC =VB)
Rx Mode, RXI = 150 mVrms (VCC =5.0 V)
Rx Mode, RXI = 150 mVrms (VCC =3.5 V)
Gain Change -- VCC =3.5 VversusVCC =5.0 V
AGC Gain Change -- VCC =2.8 VversusVCC =5.0 V*
Idle Mode, RXI = 150 mVrms
Range (Rx to Tx Mode)
GRX
GRX1
GRX2
GRXI
GRX3
+4.0
-- 0.5
—
-- 22
49
+6.0
0
-- 25
-- 20
52
+8.0
+0.5
-- 15
-- 17
54
dB
Volume Control Range (Rx Mode, 0.3 VB <VLC <VB)
VCR
27
35
—
dB
RXO DC Voltage (Rx Mode)
VRXO
—
VB
—
Vdc
RXO DC Voltage (Rx to Tx Mode)
VRXO
—
± 10
± 150
mV
RXO High Voltage (Iout =--1.0 mA RXI = VB +1.5 V)
VRXOH
3.7
—
Vdc
RXO Low Voltage (Iout =+1.0 mA,RXI =VB -- 1.0,
Output measured with respect to VB)*
VRXOL
—
-- 1.5
-- 1.0
Vdc
RXI Input Resistance (RXI < 350 mVrms)
RRXI
7.0
10
14
k
(continued)