CS4265_07 Datasheet, PDF (7/56 Pages) Cirrus Logic – 104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

1. PIN DESCRIPTIONS
CS4265
SDA 1
SCL 2
VLC 3
RESET ⁴
VA 5
AGND 6
AINA ₇
AINB 8
32 31 30 29 28 27 26 25
Thermal Pad
Top-Down (Through Package) View
32-Pin QFN Package
24 SDIN2
23 TXSDIN
22 VLS
21 MUTEC
20 AOUTB
19 AOUTA
18 AGND
17 VA
9 10 11 12 13 14 15 16
Pin Name
SDA
SCL
VLC
RESET
VA
AGND
AINA
AINB
SGND
AFILTA
AFILTB
VQ
FILT+
MICIN1
MICIN2
MICBIAS
# Pin Description
1 Serial Control Data (Input/Output) - Bidirectional data line for the I²C control port.
2 Serial Control Port Clock (Input) - Serial clock for the I²C control port.
3 Control Port Power (Input) - Determines the required signal level for the control port interface. Refer to
the Recommended Operating Conditions for appropriate voltages.
4 Reset (Input) - The device enters a low-power mode when this pin is driven low.
5 Analog Power (Input) - Positive power for the internal analog section.
6 Analog Ground (Input) - Ground reference for the internal analog section.
7, Analog Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specification
8 table.
9 Signal Ground (Input) - Ground reference for the analog line inputs.
10,
11
Antialias Filter Connection (Output) - Antialias filter connection for the ADC inputs.
12 Quiescent Voltage (Output) - Filter connection for internal quiescent voltage.
13 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
14, Microphone Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specifica-
15 tion table.
16 Microphone Bias (Output) - Low noise bias supply for external microphone. Electrical characteristics
are specified in the DC Electrical Characteristics table.
DS657F2
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