Cirrus Logic CS5374 - Manual (Page 15)

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 μF
μF
Test
DAC
CS4373A
0.02
C0G
0.02
C0G
680
680
680
680
μF μ
Ω
Ω
Ω
Ω
F
0.02
C0G
0.02
C0G
680
680
680
680
μF μ
Ω
Ω
Ω
F
Ω
VA-
0.1
VA+
0.1μF
μF
0.01μF
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