Cirrus Logic CS3301A - Manual (Page 12)

CS3301A
12 DS757F1
2.4 Connection Diagram
Figure 5 on page 12 shows a connection diagram
for the CS3301A amplifier when used with the
CS5372A dual
∆Σ modulator, the CS4373A Test
DAC, and the CS5376A digital filter. The diagram
shows differential sensors and test DAC inputs, and
analog outputs with anti-alias RC components;
power supply connections including recommended
bypassing; and digital control connections back to
the CS5376A GPIO pins.
0.02 µF
C0G
0.02 µF
C0G
0.02 µF
C0G
0.02 µF
C0G
CS5372A
∆Σ Modulator
INF+
INR+
INF-
INR-
INF-
INR-
INF+
INR+
VREF+
VREF-
VA+
VA-
VD
GND
MDATA1
MFLAG1
MDATA2
MFLAG2
MCLK
MSYNC
PWDN1
OFST
PWDN2
CS3301A
Differential
Amplifier
INB+ INA+ INA- INB- OUTF- OUTR- OUTF+ OUTR+
VA+
VA-
VD
GND
CLK GAIN MUX PWDN
CS3301A
Differential
Amplifier
INB+ INA+ INA- INB- OUTF- OUTR- OUTF+ OUTR+
VA+
VA-
VD
GND
CLK GAIN MUX PWDN
VA-
0.1 µF
VA+
0.1 µF
VA-
0.1 µF
VA+
0.1 µF
VD
0.01 µF
VD
0.01 µF
MCLK
GPIO
GPIO (x2)
GPIO (x3)
MCLK
GPIO
GPIO (x2)
GPIO (x3)
Differential
Sensor
Differential
Sensor
CS4373A
Test DAC
3
2
3
2
To CS5376A
Digital Control
To CS5376A
Digital Control
2.5 V
Reference
VA+
0.1 µF 0.01 µF
VD
VA-
0.1 µF
680
680
680
680
680
680
680
680
Figure 5. CS3301A Amplifier Connections