LE79R101 TEST CIRCUIT
-5 V
+5 V
RTRIP1
RTRIP2
VCC
VNEG
RRT1
CRT
RRT2
42 k
833 k
Ω
1.0 µF
Ω
RD
75 k
RSGH
short
Ω
RSGL
open
RD
RSGH
RSGL
VTX
CAX
2.2 nF
Le79R101
A(TIP)
A(TIP)
HPA
VTX
18 nF
CHP
RT
300 k
RRX
300 k
HPB
B(RING)
Ω
Ω
B(RING)
RSN
VRX
CBX
2.2 nF
RDC2
50 k
RDC1
50 k
Ω
RDCR2
15 k
Ω
Ω
RDC
CDC
RDCR
RYOUT1
RYOUT2
RYE
RYOUT1
RYOUT2
RYE
CDCR
RDCR1
15 kΩ
10 nF
C1
C2
C3
D1
D2
E1
C1
D1
C2
C3
D1
D2
E1
BAT1
VBAT1
VBAT2
BGND
0.1 µF
D2
BAT2
DET
VRING
RREF
DET
0.1 µF
See note below.
AGND/
DGND
BATTERY
GROUND
ANALOG
GROUND
DIGITAL
GROUND
Note:
The input should be sinusoidal with less than ± 1 V peak amplitude.
18
Le79R101 Data Sheet
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