UTCTEA1062A データシートの表示（PDF） - Unisonic Technologies
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UTCTEA1062A Datasheet PDF : 13 Pages
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UTC TEA1062/1062A
2.4
Ip
a
(mA)
b
1.6
LINEAR INTEGRATED CIRCUIT
0.8
Fig.9
0
0
1
2
(a) Ip=2.1mA
(b) Ip=1.7mA
Iline=15mA at V LN=4V
R1=620 Ω and R9=20 Ω
3
4
5
Vcc(V)
Typical current Ip available from Vcc peripheral circuitry with Vcc>=2.2V.
curve (a) is valid when the receiving amplifier is not driven or when MUTE =LOW(UTC TEA1062 is
HIGH) .curve(b) is valid when MUTE=HIGH(UTC TEA1062 is LOW) and the receiving amplifier is
driven;Vo(rms)=150mV,RL=150Ω.The supply possibilities can be increased simply by setting the voltage drop
over the circuit VLN to a high value by means of resistor RVA connected between REG and SLPE.
7 MIC+
(1)
6 MIC-
13
VCC
7 MIC+
6 MIC-
VEE
9
(a)
(b)
Fig. 10 Alternative microphone arrangement
7
MIC+
MIC-
6
(c)
(a) Magnetic or dynamic microphone. The resistor marked(1) may be connected to decrease the terminating
impedance.
(b) Electret microphone.
(c) Piezoelectric microphone.
UTC UNISONIC TECHNOLOGIES CO., LTD. 10
QW-R108-001,A
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