CS42L52 Datasheet, PDF (9/82 Pages) Cirrus Logic – Low Power, Stereo CODEC w/Headphone & Speaker Amps

CS42L52
VA
AGND
FILT+
VQ
MICBIAS
AIN4A,B
AIN3A,B
MIC1+,-
MIC2+,-
MIC2A,B
MIC1A,B
AIN2A,B
AIN1A,B
AFILTA,B
SPKR/HP
RESET
VL
VD
DGND
SDOUT
MCLK
SCLK
SDIN
LRCK
GND/Thermal Pad
16 Analog Power (Input) - Positive power for the internal analog section.
17 Analog Ground (Input) - Ground reference for the internal analog section.
18 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir-
cuits.
19 Quiescent Voltage (Output) - Filter connection for the internal quiescent voltage.
20 Microphone Bias (Output) - Low noise bias supply for an external microphone. Electrical charac-
teristics are specified in the DC Electrical Characteristics table.
21,22
23,24
Line-Level Analog Inputs (Input) - Single-ended stereo line-level analog inputs.
21,23
22,24
Differential Microphone Inputs (Input) - Differential stereo microphone inputs.
21,22
23,24
Single-Ended Microphone Inputs (Input) - Single-ended stereo microphone inputs.
25,26
29,30
Line-Level Analog Inputs (Input) - Single-ended stereo line-level analog inputs.
27,28 Anti-alias Filter Connection (Output) - Anti-alias filter connection for the ADC inputs.
31 Speaker/Headphone Switch (Input) - Powers down the left and/or right channel of the speaker
and/or headphone outputs.
32 _{Reset (Input) - The device enters a low power mode when this pin is driven low.}
33 Digital Interface Power (Input) - Determines the required signal level for the serial audio inter-
face and host control port.
34 Digital Power (Input) - Positive power for the internal digital section.
35 Digital Ground (Input) - Ground reference for the internal digital section.
36 Serial Audio Data Output (Output) - Output for two’s complement serial audio data.
37 Master Clock (Input) - Clock source for the delta-sigma modulators.
38 Serial Clock (Input/Output) - Serial clock for the serial audio interface.
39 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
40 Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on
the serial audio data line.
- Ground reference for PWM power FETs and charge pump; thermal relief pad for optimized heat
dissipation.
1.1 I/O Pin Characteristics
Input and output levels and associated power supply voltage are shown in the table below. Logic levels
should not exceed the corresponding power supply voltage.
Power
Supply
VL
VA
VP
Pin Name
I/O
Driver
RESET
Input
SCL
Input
SDA
Input/Output
MCLK
Input
LRCK Input/Output
SCLK
Input/Output
SDOUT
Output
SDIN
Input
SPKR/HP
Input
SPKR_OUTA+ Output
SPKR_OUTA- Output
SPKR_OUTB+ Output
SPKR_OUTB- Output
-
-
1.65 V - 3.47 V, CMOS/Open Drain
-
1.65 V - 3.47 V, CMOS
1.65 V - 3.47 V, CMOS
1.65 V - 3.47 V V, CMOS
-
-
1.6 V - 5.25 V Power MOSFET
1.6 V - 5.25 V Power MOSFET
1.6 V - 5.25 V Power MOSFET
1.6 V - 5.25 V Power MOSFET
Receiver
1.65 V - 3.47 V, with Hysteresis
1.65 V - 3.47 V, with Hysteresis
1.65 V - 3.47 V, with Hysteresis
1.65 V - 3.47 V
1.65 V - 3.47 V
1.65 V - 3.47 V
1.65 V - 3.47 V
1.65 V - 2.63 V
-
-
-
-
DS680A1
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