Cs5346 – Cirrus Logic CS5346 User Manual
Page 6
6
DS861PP3
CS5346
AIN1A
AIN1B
11
12
Stereo Analog Input 1 (Input) - The full-scale level is specified in the Analog Characteristics specifica-
tion table.
AGND
13
Analog Ground (Input) - Ground reference for the internal analog section.
VA
14
Analog Power (Input) - Positive power for the internal analog section.
AFILTA
15
Anti-alias Filter Connection (Output) - Antialias filter connection for the channel A ADC input.
AFILTB
16
Anti-alias Filter Connection (Output) - Antialias filter connection for the channel B ADC input.
VQ
17
18 Quiescent Voltage (
Output
)
- Filter connection for the internal quiescent reference voltage.
FILT+
19
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
NC
20 No Connect - This pin is not connected internally and should be tied to ground to minimize any poten-
tial coupling effects.
AIN4A/MICIN1
AIN4B/MICIN2
21
22
Stereo Analog Input 4 / Microphone Input 1 & 2 (Input) - The full-scale level is specified in the Ana-
log Characteristics specification table.
AIN5A
AIN5B
23
24
Stereo Analog Input 5 (Input) - The full-scale level is specified in the Analog Characteristics specifica-
tion table.
MICBIAS
25 Microphone Bias Supply (
Output
) -
Low-noise bias supply for external microphone. Electrical charac-
teristics are specified in the DC Electrical Characteristics specification table.
AIN6A
AIN6B
26
27
Stereo Analog Input 6 (Input) - The full-scale level is specified in the Analog Characteristics specifica-
tion table.
PGAOUTA
PGAOUTB
28
29
PGA Analog Audio Output (Output) - Either an analog output from the PGA block or high impedance.
See
“PGAOut Source Select (Bit 6)” on page 30
NC
30
31
No Connect - These pins are not connected internally and should be tied to ground to minimize any
potential coupling effects.
AGND
32
Analog Ground (Input) - Ground reference for the internal analog section.
NC
33
34
35
No Connect - These pins are not connected internally and should be tied to ground to minimize any
potential coupling effects.
VLS
36 Serial Audio Interface Power (
Input
) -
Determines the required signal level for the serial audio inter-
face. Refer to the Recommended Operating Conditions for appropriate voltages.
NC
37
38
39
40
No Connect - These pins are not connected internally and should be tied to ground to minimize any
potential coupling effects.
SDOUT
41
Serial Audio Data Output (Output) - Output for two’s complement serial audio data.
SCLK
42
Serial Clock (Input/Output) - Serial clock for the serial audio interface.
LRCK
43 Left Right Clock
(Input/Output
) - Determines which channel, Left or Right, is currently active on the
serial audio data line.
MCLK
44
Master Clock (Input) - Clock source for the ADC’s delta-sigma modulators.
DGND
45
Digital Ground (Input) - Ground reference for the internal digital section.
VD
46
Digital Power (Input) - Positive power for the internal digital section.
INT
47
Interrupt (Output) - Indicates an interrupt condition has occurred.
OVFL
48
Overflow (Output) - Indicates an ADC overflow condition is present.