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CDB42448 Arkusz danych(PDF) 7 Page - Cirrus Logic

Numer części CDB42448
Szczegółowy opis  108 dB, 192 kHz 6-In, 8-Out CODEC
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Producent  CIRRUS [Cirrus Logic]
Strona internetowa  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CDB42448 Arkusz danych(HTML) 7 Page - Cirrus Logic

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DS648F3
7
CS42448
DAC_SDIN1
DAC_SDIN2
DAC_SDIN3
DAC_SDIN4
17
16
15
14
DAC Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
DAC_SCLK
18
DAC Serial Clock (Input/Output) - Serial clock for the DAC serial audio interface. Input frequency
must be 256xFs in the TDM digital interface format.
DAC_LRCK
19
DAC Left/Right Clock (Input/Output) - Determines which channel, Left or Right, is currently
active on the DAC serial audio data line. Signals the start of a new TDM frame in the TDM digital
interface format.
AUX_LRCK
20
Auxiliary Left/Right Clock (Output) - Determines which channel, Left or Right, is currently active
on the Auxiliary serial audio data line. Derived from the ADC serial port and equals Fs.
AUX_SCLK
21
Auxiliary Serial Clock (Output) - Serial clock for the Auxiliary serial audio interface.
AUX_SDIN
22
Auxiliary Serial Input (Input) - Provides an additional serial input for two’s complement serial
audio data. Used only in the TDM digital interface format.
AOUT1 +,-
AOUT2 +,-
AOUT3 +,-
AOUT4 +,-
AOUT5 +,-
AOUT6 +,-
AOUT7 +,-
AOUT8 +,-
26,25
27,28
30,29
31,32
34,33
36,37
39,38
40,41
Differential Analog Output (Output) - The full-scale analog output level is specified in the Analog
Characteristics table. Each leg of the differential outputs may also be used single-ended.
AGND
42,56 Analog Ground (Input) - Ground reference for the analog section.
VQ
43
Quiescent Voltage (Output) - Filter connection for internal quiescent reference voltage.
VA
44,53
Analog Power (Input) - Positive power supply for the analog section. See “Digital I/O Pin Charac-
teristics” on page 8.
AIN1 +,-
AIN2 +,-
AIN3 +,-
AIN4 +,-
AIN5 +,-
AIN6 +,-
46,45
48,47
50,49
52,51
58,57
60,59
Differential Analog Input (Input) - Signals are presented differentially or single-ended to the
delta-sigma modulators. The full-scale input level is specified in the Analog Characteristics speci-
fication table. See below for a description of AIN5-AIN6 in Single-Ended Mode.
AIN5 A,B
AIN6 A,B
58,57
60,59
Single-Ended Analog Input (Input) - When stereo ADC3 is in Single-Ended Mode, an internal
analog mux allows selection between 2 channels for both analog inputs AIN5 and AIN6 (see Sec-
tion 4.2.2 on page 25 for details). The unused leg of each input is internally connected to common
mode. The full-scale input level is specified in the Analog Characteristics table.
MUTEC
35
Mute Control (Output) - Used as a control for external mute circuits to prevent the clicks and
pops that can occur in any single supply system.
FILT+_DAC
54
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir-
cuits of the DAC.
FILT+_ADC
55
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir-
cuits of the ADC.
INT
61
Interrupt (Output) - Signals either an ADC overflow condition has occurred in one or more of the
ADC inputs, or a clocking error has occurred in the DAC/ADC as specified in the Interrupt register.
SCL/CCLK
63
Serial Control Port Clock (Input) - Serial clock for the control port interface.
SDA/CDOUT
64
Serial Control Data I/O (Input/Output) - Input/Output for I²C data. Output for SPI data.


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