AD608 Просмотр технического описания (PDF) - Analog Devices
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AD608 Datasheet PDF : 16 Pages
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AD608
TEST CIRCUITS
PRUP INPUT
U1A
TRIGGER
U1B
4.7kΩ
47kΩ
VPOS
51.1Ω
1 VPS1
0.1µF
2 COM1
0.1µF
3 LOHI
51.1Ω
1nF
4 COM2
5 RFHI
1nF
6 RFLO
PRUP 16
LMOP 15
VPS2 14
FDBK 13
COM3 12
RSSI 11
7 MXOP
IFLO 10
332Ω
8 VMID
IFHI 9
AD608
0.1µF
332Ω
IF INPUT
LMOP OUTPUT
0.1µF
18nF
100Ω
10nF
RSSI OUTPUT
0.1µF
301Ω
54.9Ω
U1 – 74HC00
Figure 14. IF Test Board Schematic
FLUKE 6082A
SYNTHESIZER
IF TEST BOARD
DIGITAL
MULTIMETER
(DMM)
10.7MHz
IFHI
RSSI
VPOS
DMM
AGILENT
HP34401A
DC POWER
SUPPLY DCPS 3V
(DCPS)
AGILENT
HP3366A
Figure 15. Test Circuit for IF RSSI Output vs. Input Power at IFHI and Supply
Voltage, Ambient Temperature (Figure 5); IF RSSI Output vs. Input Power and
Temperature, 3 V Supply (Figure 6); and RSSI Error vs. Input Power (Figure 7)
FLUKE 6082A
SYNTHESIZER
10.7MHz
0dBm
COUPLER
MCL
ZDC-20-1
IF TEST BOARD
IFHI
RSSI
VPOS
TEKRONIX
P6201
FET
PROBE
CH 1
CH 2
DCPS 3V
AGILENT
HP3366A
AGILENT
HP54120A
DIGITAL
OSCILLOSCOPE
Figure 16. Test Circuit for RSSI Pulse Response/RSSI Rise Time (Figure 9)
VPOS
LO INPUT
51.1Ω
RF INPUT
51.1Ω
0.1µF
1 VPS1
2 COM1
1nF
3 LOHI
4 COM2
1nF
5 RFHI
6 RFLO
1nF
7 MXOP
47kΩ
PRUP 16
LMOP 15 NC
VPS2 14
FDBK 13
COM3 12
RSSI 11 NC
IFLO 10
8 VMID
IFHI 9
332Ω
AD608
0.1µF
0.1µF
332Ω
301Ω
IF OUTPUT
54.9Ω
18nF
18nF
100Ω
10nF
NC = NO CONNECT
Figure 18. Mixer Test Board Schematic
FLUKE 6082A
SYNTHESIZER
10.7MHz
0dBm
IF TEST BOARD
IFHI
RSSI
PRUP
VPOS
TEKRONIX
P6201
FET
PROBE
AGILENT
HP54120A
DIGITAL
OSCILLOSCOPE
CH 1
CH 2
DCPS 3V
AGILENT
HP3366A
Figure 19. Test Circuit for RSSI Power-Up Response (Figure 8)
FLUKE 6082A
SYNTHESIZER
10.7MHz
0dBm
IF TEST BOARD
IFHI
LMOP
VPOS
TEKRONIX
P6201
FET
PROBE
AGILENT
HP54120A
DIGITAL
OSCILLOSCOPE
DCPS 3V
AGILENT
HP3366A
Figure 20. Test Circuit for Limiter Rise and Fall Times (Figure 10)
FLUKE 6082A
SYNTHESIZER
10.7MHz
0dBm
IF TEST BOARD
IFHI
LMOP
PRUP
VPOS
TEKRONIX
P6201
FET
PROBE
AGILENT
HP54120A
DIGITAL
OSCILLOSCOPE
CH 1
CH 2
DCPS 3V
AGILENT
HP3366A
Figure 17. Test Circuit for Limiter Power-Up Response Time (Figure 11)
FLUKE 6082A
SYNTHESIZER
10.7MHz
MCL
ZDC-20-1
TEKTRONIX
IF TEST BOARD P6201
COUPLER
IFHI RSSI
AGILENT
HP8494A
HP8495A
DCPS 3V
FET
PROBE AGILENT
HP8447A
BPF
CH 1
AGILENT
HP3366A
280kHz BW
10.7MHz CF
TOKO SK107MK1-A0-10
TRIG
AGILENT
HP54120A
DIGITAL
OSCILLOSCOPE
Figure 21. Test Circuit for Limiter Phase Performance vs. Input Power at IFHI
(Figure 12) and Limiter RMS Jitter Performance vs. Input Power at IFHI (Figure 13)
Rev. C | Page 8 of 16
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