MC34118DWR3 Freescale Semiconductor, MC34118DWR3 Datasheet - Page 12

• Manufacturer Part Number: MC34118DWR3
• Description: IC VOICE SWITCH SPKPHONE 28-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC34118DWR3

• Function: Voice-Switched Speakerphone
• Number Of Circuits: 1
• Voltage - Supply: 3.5 V ~ 6.5 V
• Current - Supply: 5.5mA
• Operating Temperature: -20°C ~ 60°C
• Mounting Type: Surface Mount
• Package / Case: *
• Includes: Background Noise Monitor, Chip Disable, Dial Tone Detector, Driver Amplifiers, Level Detectors, Microphone Amplifier, MUTE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -
• Interface: -
• Other names: MC34118DW3TR

MC34118
12
+ 100
Figure 12. Level Detector AC Transfer Characteristics
Figure 14. Receive Attenuator versus Volume Control
80
60
40
20
+ 10
-- 10
-- 20
-- 30
-- 40
-- 50
160
120
0
80
40
100
Figure 16. Microphone Amplifier and 1st Hybrid
0
0
0.2
0
R = 10 k, C = 0.1 µF
Amplifier Open Loop Gain and Phase
@ 1.0 kHz
GAIN
1.0K
C
R = 5.1 k, C = 0.1 µF
V
20
0.4
in
MINIMUM RECOMMENDED LEVEL
R
MICROPHONE
FREQUENCY (Hz)
INPUT SIGNAL (mVrms)
AMP PHASE
V
B
10K
V
CIRCUIT IN RECEIVE MODE
LC
40
0.6
--
+
/V
(RLO1, RLO2
B
TLO1, TLO2)
V
out
(RLI1, RLI2
TLI1, TLI2)
HYBRID AMP
R = 10 k, C = 0.047 µF
2.0 µF
100K
PHASE
350 Ω
60
0.8
4.0
µA
1.0M
0
36
72
108
144
180
80
1.0
+ 5.0
-- 5.0
-- 6.0
-- 10
-- 15
-- 20
-- 12
-- 18
-- 24
-- 30
100
80
60
40
20
0
0
0
Figure 15. Receive Attenuation Gain versus V
2.8
0
Figure 17. Input Characteristics @ CD, MUT
V
in
Figure 13. Level Detector AC Transfer
= 1.0 mVrms
1.0
2.9
10 mVrms
40 mVrms
Characteristics versus Frequency
VALID FOR
0 ≤ CD, MUT ≤ V
0.047
300
2.0
@ 1.0 kHz
3.0
V
INPUT VOLTAGE (VOLTS)
in
10 k
3.0
CIRCUIT IN RECEIVE MODE
0.5 V
f, FREQUENCY (Hz)
3.1
V
CC
CC
B
V
1.0K
(VOLTS)
≤ V
B
4.0
LC
3.2
+
--
≤ V
V
in
(RLO1, RLO2
TLO1, TLO2)
5.0
B
= 10 mVrms
V
in
V
≥ 10 mV
out
3.3
(RLI1, RLI2
TLI1, TLI2)
3.0K
2.0 µF
350 Ω
6.5
MOTOROLA
3.4
V
CC
CC
+ 1.0 V
4.0
µA
3.5
10K