FEDL7012-06-02
ML7012-06
TYPICAL APPLICATION CIRCUITS
Analog Interface
ML7012-06
–
AOUT
R1
+
R3
C2
RCI
C1
R2
–
RCAO
+
R4
TXAI
–
+
RA
TXAN
RB (=RA)
–
+
TXAP
–
AIN
+
GSR
SG
SG Gen.
R5
C3
R6 0.022 F
600
600 : 600
LINE
R7
C4
1 µF
R8
• The 2nd order LPF should be built to
make fc approximately 5 kHz using
the built-in amplifier, R1 to R3, and
C1 and C2.
Numeric examples:
R1 = R2 = R3 = 68 k
C1 = 1000 pF, C2 = 220 pF
• When VDD 3 V, R5/R4 2
• When VDD < 3 V, R5/R4 1.6
19/23