CS4245_07 Datasheet, PDF (29/57 Pages) Cirrus Logic – 104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

3. TYPICAL CONNECTION DIAGRAM
+3.3V to +5V
10 µF 0.1 µF
0.1 µF
0.1 µF 10 µF
+3.3V to +5V
CS4245
+1.8V
to +5V
Digital Audio
Playback
Digital Audio
Capture
VD
VA
0.1 µF ^VLS
MCLK2
SCLK2
LRCK2
SDIN
MCLK1
SCLK1
LRCK1
VA
AUXOUTA
AUXOUTB
3.3 µF
3.3 µF
MUTEC
AOUTA
AOUTB
3.3 µF
Mute
Drive
470 Ω
10 kΩ
10 kΩ
*C
*C
Optional
Analog
Muting
3.3 µF
470 Ω
See Note 2
Rext
Rext
Micro-
Controller
2 kΩ 2 kΩ
SDOUT
INT
OVFL
CS4245
RESET
SCL/CCLK
SDA/CDOUT
AD1/CDIN
AD0/CS
AIN1A
1800 pF _*
10 µF ^{100 Ω}
AIN1B
*
1800 pF
10 µF _{100 Ω}
AIN2A
1800 pF _*
10 µF ^{100 Ω}
AIN2B
*
1800 pF
10 µF
100 Ω
AIN3A
1800 pF _*
10 µF ^{100 Ω}
Left Analog Input 1
100 kΩ
100 kΩ
Right Analog Input 1
Left Analog Input 2
100 kΩ
100 kΩ
Right Analog Input 2
Left Analog Input 3
100 kΩ
+1.8V
to +5V
See Note 1
0.1 µF
VLC
AIN3B
*
1800 pF
10 µF _{100 Ω}
100 kΩ
Right Analog Input 3
Note 1: Resistors are required for I²C control
port operation
Note 2 :
For best response to Fs/2 :
C
=
R_ext + 470
4πFs(R_ext × 470)
This circuitry is intended for applications where
the CS4245 connects directly to an unbalanced
output of the design . For internal routing
applications please see the DAC Analog Output
Characteristics section for loading limitations .
10 µF 0.1 µF
47 µF 0.1 µF
47 µF 0.1 µF
10 µF 0.1 µF
Note 3: The value of RL is dictated by the
microphone carteridge.
AIN4A/MICIN1
1800 pF _{* 10 µF} 100 Ω
Left Analog Input 4
100 kΩ
*
1800 pF
10 µF
100 Ω
AIN4B/MICIN2
100 kΩ
Right Analog Input 4
AIN5A
1800 pF _*
10 µF ^{100 Ω}
Left Analog Input 5
100 kΩ
AIN5B
*
1800 pF
10 µF _{100 Ω}
100 kΩ
Right Analog Input 5
VQ1
FILT1+
AGND
FILT2+
VQ2
DGND
AIN6A
1800 pF _*
10 µF ^{100 Ω}
Left Analog Input 6
100 kΩ
AIN6B
MICBIAS
AGND
AGND
AFILTA
AFILTB
*
1800 pF
10 µF
100 Ω
Note 3
47 µF ^RL
100 kΩ
Right Analog Input 6
*
*
2.2nF 2.2nF
* Capacitors must be C0G or equivalent
Figure 12. Typical Connection Diagram
DS656F2
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