Cirrus Logic CS53L21 - Manual (Page 10)

10 DS700PP1
CS53L21
+1.8V or +2.5V
VQ
0.1 µF 1 µF
DGND
VL
0.1 µF
+1.8V, 2.5 V
or +3.3V
I²S/LJ
MCLKDIV2
RESET
LRCK
AGND
MCLK
SCLK
VD
* Capacitors must be C0G or equivalent
150 pF
AFILTA
AFILTB
150 pF
SDOUT/
M/S
CS53L21
1 µF
* *
+1.8V or +2.5V
AIN1A Left Analog Input 1
1800 pF
1800 pF
100 k Ω
100 k Ω
100 Ω
100 Ω
AIN1B Right Analog Input 1
*
*
Digital Audio
Processor
0.1 µF
VA
10 µF
FILT+
1 µF
1 µF
VL or DGND (1)
See Note 4
Note 4:
Series resistance in the path of the power supplies
(typically used for added filtering) must be avoided.
(1) Pull-up to VL (47 k Ω ≤ for Master Mode.
Pull-down to DGND for Slave Mode.
TSTN
47 k Ω
VA_
PULLUP
Figure 2. Typical Connection Diagram (Hardware Mode)