CS5374
CS5374
15
Figure 11. CS5374 Connection Diagram
A
INA1+
INA1-
MUX1
MUX2
INB1-
INB1+
GUARD1
+
-
-
+
400
Ω
40
0
Ω
INB2+
INB2-
INA2-
INA2+
+
-
-
+
400
Ω
400
Ω
Reset, Clock, and
Synchronization
INR1-
VA+
MFLAG1
MDATA1
MCLK
MSYNC
MFLAG2
MDATA2
GA
IN
1
GA
IN
2
GUARD2
INR2-
INR2+
4
th
Order
ΔΣ
Modulator
4
th
Order
ΔΣ
Modulator
INF1-
INF1+
INR1+
RST
SPI
TM
Serial
Communications
Interface
SDI
SDO
SCLK
CS
INF2+
INF2-
OUT2-
OUT2+
OUT1+
OUT1-
CS5374
VA-
GND
VD+
VREF-
VREF+
VA+
VA-
Hydrophone
Sensor
Hydrophone
Sensor
VA-
0.1
VA+
0.1
μ
F
μ
F
Test
DAC
CS4373A
0.02
C0G
0.02
C0G
680
680
680
680
μ
F
μ
Ω
Ω
Ω
Ω
F
0.02
C0G
0.02
C0G
680
680
680
680
μ
F
μ
Ω
Ω
Ω
F
Ω
VA-
0.1
VA+
0.1
μ
F
μ
F
0.01
μ
F
2.5V
Precision
Voltage
Reference
To CS5376A
Digital Control
Figure 12. CS5374 to CS5376A Digital Interface
Reset, Clock, and
Synchronization
MFLAG1
MDATA1
MCLK
MSYNC
MFLAG2
MDATA2
4
th
Order
ΔΣ
Modulator
4
th
Order
ΔΣ
Modulator
RST
SPI
TM
Serial
Communications
Interface
SDI
SDO
SCLK
CS
CS5374
MSYNC
MCLK
Clock and
Synchronization
Modulator Data
Interface
SPI 2
Serial Peripheral
Interface 2
RESET
MFLAG1
MDATA1
MFLAG2
MDATA2
SI1
SO
SCK2
CS0
CS5376A
EXTERNAL RESET
CONTROLLER