LAG640D 데이터 시트보기 (PDF) - Mitsumi
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LAG640D Datasheet PDF : 10 Pages
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MITSUMI
IC for Multifunction Telephones LAG640
Electrical Characteristics (Except where noted otherwise, Ta=25°C, VCC=30V Faudio=1kHz)
Item
Symbol
Measurement
circuit
Measurement conditions
Min. Typ. Max. Units
Power amp unit
Amp gain
GV
1
Voa=0.775Vrms
37 40 43 dB
Maximum distortion-free output PO max.
1
THD=10%
150 260
mV
Distortion
THD
1
PO=100mW
5%
Attenuation at 100 Hz GF1/GF0
1
FO=1kHz, Fl=100Hz
Voa=0.775Vrms
-14
dB
Attenuation at 10 Hz
GF2/GF0
1
F2=10 kHz, above conditions
-8
dB
Input IMP 1
RIN1
3
Mute off
10 15
kΩ
Input IMP 2
RIN2
3
Mute on
2.5 3.5
kΩ
Mute on
Residual noise 1
Vno1
1
AUDIO IN 20mVrms
IL=10 70mA 1.5kHz
0.5 mVrms
Transmission unit on Ft=1kHz
Mute off
Residual noise 2
Vno2
1
AUDIO OFF
IL=10 70mA 1.5kHz
1.2 mVrms
Transmission unit on Ft=1kHz
Beep sound generator unit
Beep sound frequency
Fb
1
0.85 1.0 1.15 kHz
Beep off switching point
Ibsw
1
Pin 9 input current
20 35 48 µA
Beep sound output 1
Vob1
1
Pin 9 connected to GND through 4.7k
Amp output voltage
1.0
1.4
1.8 Vrms
Beep sound output 2
Vob2
1
Pin 9 connected to GND through 47k 0.11 0.16 0.22 Vrms
Watchdog timer unit
Timer time
Tt
1
cf. watchdog timer
waveform diagram
2.4 3.0 3.6 S
Output pulse width
TPW
1
cf. watchdog timer
waveform diagram
T=beep sound period
0.45
(1/2T)
1.1
(1T)
mS
Output voltage while on
VwON
1
0.5 V
Leakage output current while off IwOFF
1
1 µA
Timer-clearing pulse width
Tcl
1
5
µS
Transmission circuit unit
Transmission output voltage (1) Vto1
2
RL-110Ω, peak value
across pins L3-L4
5.1 5.8 6.6 Vp-p
Transmission output voltage (2) Vto2
2
RL-1Ω, peak value
across pins L3-L4
5.5 6.2 7.0 Vp-p
L3 pin voltage
VL3
2
No signal
4.0 4.4 4.8 V
L4 pin voltage
VL4
2
No signal
0.5 0.7 0.9 V
Reception sensitivity
Vrs
2
0.8 1.0 1.2 Vp-p
Input IMP
RIN3
4
Both pins 7and 8
14 20 26 kΩ
Transmission delay time
Td1
2
cf. transmit/receive
waveform diagrams
0.4
µS
Transmission delay time
Td2
2
cf. transmit/receive
waveform diagrams
0.4
µS
Transmission delay time
Td3
2
cf. transmit/receive
waveform diagrams
0.8
µS
Transmission delay time
Td4
2
cf. transmit/receive
waveform diagrams
0.8
µS
Reception output H voltage VroH
2
RL=10kΩ
4.5
V
Reception output L voltage VroL
2
RL=1.5kΩ
0.5 V
General logic unit characteristics
H level input voltage
ViH
3
2.4
V
L level input voltage
ViL
3
0.8 V
H level input current
IiH
3
VIN=2.4V
10 µA
L level input current
IiL
3
VIN=0.4V
-300 µA
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