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CS4245 Arkusz danych(PDF) 6 Page - Cirrus Logic

Numer części CS4245
Szczegółowy opis  105 dB, 24-Bit, 192 kHz Streo Sudio CODEC
Download  54 Pages
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Producent  CIRRUS [Cirrus Logic]
Strona internetowa  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4245 Arkusz danych(HTML) 6 Page - Cirrus Logic

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CS4245
6
AIN2A
AIN2B
9,
10
Stereo Analog Input 2 (
Input) - The full scale level is specified in the ADC Analog Characteristics
specification table.
AIN1A
AIN1B
11,
12
Stereo Analog Input 1 (
Input) - The full scale level is specified in the ADC Analog Characteristics
specification 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
Antialias Filter Connection (
Output) - Antialias filter connection for the channel A ADC input.
AFILTB
16
Antialias Filter Connection (
Output) - Antialias filter connection for the channel B ADC input.
VQ1
17
Quiescent Voltage 1 (
Output) - Filter connection for the internal quiescent reference voltage.
VQ2
18
Quiescent Voltage 2 (
Output) - Filter connection for the internal quiescent reference voltage.
FILT1+
19
Positive Voltage Reference 1 (
Output) - Positive reference voltage for the internal sampling circuits.
FILT2+
20
Positive Voltage Reference 2 (
Output) - Positive reference voltage for the internal sampling circuits.
AIN4A/MICIN1
AIN4B/MICIN2
21,
22
Stereo Analog Input 4 / Microphone Input 1 & 2 (
Input) - The full scale level is specified in the ADC
Analog Characteristics specification table.
AIN5A
AIN5B
23,
24
Stereo Analog Input 5 (
Input) - The full scale level is specified in the ADC Analog Characteristics
specification 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 ADC Analog Characteristics
specification table.
AUXOUTA
AUXOUTB
28,
29
Auxiliary Analog Audio Output (
Output) - Analog output from either the DAC, the PGA block, or high
impedance. See “Auxiliary Output Source Select (Bits 6:5)” on page 43.
VA
30
Analog Power
(Input) - Positive power for the internal analog section.
AGND
31,
32
Analog Ground (
Input) - Ground reference for the internal analog section.
AOUTA
AOUTB
33,
34
DAC Analog Audio Output (
Output) - The full scale output level is specified in the DAC Analog Char-
acteristics specification table.
MUTEC
35
Mute Control
(Output) - This pin is active during power-up initialization, reset, muting, when master
clock to left/right clock frequency ratio is incorrect, or power-down.
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.
SDIN
37
Serial Audio Data Input (
Input) - Input for two’s complement serial audio data.
SCLK2
38
Serial Port 2 Serial Bit Clock
(Input/Output) - Serial bit clock for serial audio interface 2.
LRCK2
39
Serial Port 2 Left Right Clock
(Input/Output) - Determines which channel, Left or Right, is currently
active on the serial audio input data line.
MCLK2
40
Master Clock 2 (
Input/Output) -Optional asynchronous clock source for the DAC’s delta-sigma modu-
lators.
SDOUT
41
Serial Audio Data Output (
Output) - Output for two’s complement serial audio data.
SCLK1
42
Serial Port 1 Serial Bit Clock
(Input/Output) - Serial bit clock for serial audio interface 1.
LRCK1
43
Serial Port 1 Left Right Clock
(Input/Output) - Determines which channel, Left or Right, is currently
active on the serial audio output data line.


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