Rainbow Electronics MAX2038 User Manual
Page 22
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MAX2038
Ultrasound VGA Integrated
with CW Octal Mixer
22
______________________________________________________________________________________
12
μ
H
12
μ
H
ONE CHANNEL
ONE CHANNEL
TO 12-BIT
IMAGING
ADC
TO Q CHANNEL
CWD
ADC
TO I CHANNEL
CWD
ADC
CWD I/Q LO
CWD
Q CHANNELS
IN
0.1
μ
F
0.1
μ
F
LO DIVIDER
+V
MIX
+V
MIX
50
Ω
100nF
100nF
100nF
+V
-V
+V
IN
100nF
100nF
ZIN IN CONTROL
D2, D1, D0
VG_CTL+
VG_CTL-
VGIN_+
VGIN_-
CWIN_+
CWIN_-
CW_VG
CW_FIL
TER
VGOUT_+
VGOUT_-
CW_IOUT+
CW_IOUT
-
CW_QOUT
-
CW_QOUT+
THIRD-ORDER BUTTERWOR
TH
ANTI-ALIAS FIL
TER
V
CC
V
REF
GND
115
Ω
115
Ω
115
Ω
115
Ω
MAX2038
50
Ω
CWD
I CHANNELS
IN
MAX2034
Figure 7. Typical Per-Channel Ultrasound Imaging Application
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