MHW927 INTERNAL DIAGRAM
1
2
3
INPUT* REFLECTED
POWER POWER
METER METER
TEST FIXTURE
Z1 C1 C4 +
C2 C5
+
C7
C8
4
5
C6 C3
+
Z2
C9
OUTPUT
POWER SPECTRUM
METER ANALYZER
20 dB
ATTENUATOR
RF
IN
20 dB DUAL DIRECTIONAL
COUPLER
VBIAS
(TYPICAL)(1)
10 dB
MINIMUM
ATTENUATION
90 DEGREE
HYBRID
JUNCTION
50 Ω
TERMINATION
6 dB PAD
CIRCULATORS
6 dB PAD
VS2
12.5 V
@ 160 mA
(TYPICAL)
VS3
12.5 V
@ 1.25 mA
(TYPICAL)
RF SIGNAL
GENERATOR
RF SIGNAL
GENERATOR
RF
OUT
20 dB DUAL DIRECTIONAL
COUPLER
POWER
TERMINATION
50 Ω
TERMINATION
C1, 2, 3 — 0.018 µF
C4, 5, 6 — 0.1 µF
C7, 8, 9 — 1.0 µF (tant.)(tant.)
Z1, Z2 — 50 Ω MICROSTRIP
(1) VBIAS = 9.5 V @ 140 mA (MHW927A) or 8.0 V @ 140 mA (MHW927B)
*Module input power is forward power as sampled by the directional
*coupler and read on the input power meter.
Figure 1. MHW927A / B Test Circuit Diagram
MHW927A MHW927B
2
MOTOROLA RF DEVICE DATA