CRD42L51(2005) Просмотр технического описания (PDF) - Cirrus Logic

Номер в каталоге

Компоненты Описание

Список матч

CRD42L51
(Rev.:2005)

Low Power, Stereo CODEC with Headphone Amp

Cirrus Logic 

CS42L51

DAC_FILT+

ADC_FILT+

VQ

MICIN1/

AIN3A

MICIN2/

BIAS/AIN3B

AIN2A

AIN2B/BIAS

AFILTA

AFILTB

AIN1A

AIN1B

RESET

VL

VD

DGND

SDOUT

(M/S)

MCLK

SCLK

SDIN

Thermal Pad

14 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.

16

15 Quiescent Voltage (Output) - Filter connection for internal quiescent voltage.

17 Microphone Input 1 (Input) - The full-scale level is specified in the ADC Analog Characteristics specifi-

cation table.

18 Microphone Input 2 (Input/Output) - The full-scale level is specified in the ADC Analog Characteristics

specification table. This pin can also be configured as an output to provide a low noise bias supply for an

external microphone. Electrical characteristics are specified in the DC Electrical Characteristics table.

19 Analog Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specification

table.

20 Analog Input (Input/Output) - The full-scale level is specified in the ADC Analog Characteristics specifi-

cation table. This pin can also be configured as an output to provide a low noise bias supply for an exter-

nal microphone. Electrical characteristics are specified in the DC Electrical Characteristics table.

21 Filter Connection (Output) - Filter connection for the ADC inputs.

22

23 Analog Input (Input) - The full-scale level is specified in the ADC Analog Characteristics specification

24 table.

25 Reset (Input) - The device enters a low power mode when this pin is driven low.

26 Digital Interface Power (Input) - Determines the required signal level for the serial audio interface and

host control port. Refer to the Recommended Operating Conditions for appropriate voltages.

27 Digital Power (Input) - Positive power for the internal digital section.

28 Digital Ground (Input) - Ground reference for the internal digital section.

29 Serial Audio Data Output (Output) - Output for two’s complement serial audio data.

Serial Port Master/Slave (Input/Output) - Hardware Mode Startup Option: Selects between master and

slave mode for the serial port.

30 Master Clock (Input) -Clock source for the delta-sigma modulators.

31 Serial Clock (Input/Output) - Serial clock for the serial audio interface.

32 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.

- Thermal relief pad for optimized heat dissipation. See “QFN Thermal Pad” on page 77.

8

DS679A2

Share Link: