HCPL-800J Datasheet, PDF (14/18 Pages) AVAGO TECHNOLOGIES LIMITED – Under-Voltage Detection

Test Circuit Diagrams (Cont.)
Unless otherwise noted, all test circuits are at T_A = 25°C, V_CC1 = 5 V, V_CC2 = 5 V, sinusoidal waveform input, and signal
frequency f = 132 kHz.
VCC1
VIN = 0.5 VPP
100 nF 2 kÙ
VCC1
100 nF
1 _Tx-en
2 _Tx-in
3 _Rx-PD-out
4 _Rx-Amp-in
5 _Status
6 _Rx-out
7 _VCC1
8 _GND1
HCPL-800J
GND2
Tx-out
VCC2
Tx-PD-out
Tx-LD-in
Cext
Rx-in
Rref
16
GND2
15
100 nF
100 µF
14
VCC2
13
12 ^{1 µF}
1 kÙ
50 Ù
SPECTRUM
ANALYZER
11
1 µF
10
100 nF
9
Rref 24 kÙ
GND1
GND2
Figure 22. Tx-PD-out harmonic distortion test circuit
VCC1
GND1
100 nF 2 kÙ
VCC1
100 nF
1 _Tx-en
2 _Tx-in
3 _Rx-PD-out
4 _Rx-Amp-in
5 _Status
6 _Rx-out
7 _VCC1
8 _GND1
HCPL-800J
GND2
Tx-out
VCC2
Tx-PD-out
Tx-LD-in
Cext
Rx-in
Rref
16
GND2
15
14 ^{1 µF}
VOUT = 3.6 VPP
50
Ù
SPECTRUM
ANALYZER
VCC2
13
100 nF
100 µF
12 ^{100 nF} _VIN
11
1 µF
10
100 nF
9
GND2
Rref 24 kÙ
GND1
GND2
Figure 23. Line driver harmonic distortion test circuit
VCC1
GND1
100 nF 2 kÙ
VCC1
100 nF
1 _Tx-en
2 _Tx-in
3 _Rx-PD-out
4 _Rx-Amp-in
5 _Status
6 _Rx-out
7 _VCC1
8 _GND1
HCPL-800J
GND1
Figure 24. Line driver bandwidth test circuit
GND2
Tx-out
VCC2
Tx-PD-out
Tx-LD-in
Cext
Rx-in
Rref
16
15
VOUT _{50 Ù}
GND2
14 ^{1 µF}
RL
VCC2
13
100 nF
100 µF
12 ^{100 nF}
VIN = 1 VPP
GND2
11
f = 10 k ~ 10 MHz
1 µF
10
100 nF
9
Rref 24 kÙ
GND2
14