CDB42448 Cirrus Logic Inc, CDB42448 Datasheet - Page 7

• Manufacturer Part Number: CDB42448
• Description: BOARD EVAL FOR CS42448 CODEC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42448

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42448
• Primary Attributes: 24-Bit, 192 kHz, 6 ADCs: 102dB Dynamic Range, 8 DACs: 105dB Dynamic Range
• Secondary Attributes: Time Division Multiplexed (TDM), I2C, and SPI Interface, Popguard® Technology
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V to 12 V
• Product: Audio Modules
• For Use With/related Products: CS42448
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1151

DS648F3
DAC_SDIN1
DAC_SDIN2
DAC_SDIN3
DAC_SDIN4
DAC_SCLK
DAC_LRCK
AUX_LRCK
AUX_SCLK
AUX_SDIN
AOUT1 +,-
AOUT2 +,-
AOUT3 +,-
AOUT4 +,-
AOUT5 +,-
AOUT6 +,-
AOUT7 +,-
AOUT8 +,-
AGND
VQ
VA
AIN1 +,-
AIN2 +,-
AIN3 +,-
AIN4 +,-
AIN5 +,-
AIN6 +,-
AIN5 A,B
AIN6 A,B
MUTEC
FILT+_DAC
FILT+_ADC
INT
SCL/CCLK
SDA/CDOUT
26,25
27,28
30,29
34,33
36,37
39,38
40,41
42,56 Analog Ground (Input) - Ground reference for the analog section.
44,53
46,45
48,47
50,49
52,51
58,57
60,59
58,57
60,59
31,32
17
16
15
14
18
19
20
21
22
43
35
54
55
61
63
64
DAC Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
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 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.
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.
Auxiliary Serial Clock (Output) - Serial clock for the Auxiliary serial audio interface.
Auxiliary Serial Input (Input) - Provides an additional serial input for two’s complement serial
audio data. Used only in the TDM digital interface format.
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.
Quiescent Voltage (Output) - Filter connection for internal quiescent reference voltage.
Analog Power (Input) - Positive power supply for the analog section. See
teristics” on page
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.
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
tion 4.2.2 on page 25
mode. The full-scale input level is specified in the Analog Characteristics table.
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.
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir-
cuits of the DAC.
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir-
cuits of the ADC.
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.
Serial Control Port Clock (Input) - Serial clock for the control port interface.
Serial Control Data I/O (Input/Output) - Input/Output for I²C data. Output for SPI data.
8.
for details). The unused leg of each input is internally connected to common
“Digital I/O Pin Charac-
CS42448
Sec-
7