CS4525-CNZR Просмотр технического описания (PDF) - Cirrus Logic

Номер в каталоге

Компоненты Описание

Список матч

CS4525-CNZR

30 W Digital Audio Amplifier with Integrated ADC

Cirrus Logic 

LVD

DGND

VD_REG

VD

VA_REG

AGND

FILT+

VQ

AFILTL

AFILTR

AINL

AINR

OCREF

PGND

RAMP_CAP

VP

OUT4

OUT3

OUT2

OUT1

PWM_SIG2

PWM_SIG1

DLY_SDOUT

DLY_SDIN/

EX_TWR

AUX_SDOUT

AUX_SCLK

AUX_LRCK/

AD0

SYS_CLK

XTO

XTI

Thermal Pad

CS4525

VD Voltage Level Indicator (Input) - Identifies the voltage level attached to VD. When applying

9 5.0 V to VD, LVD must be connected to VD. When applying 2.5 V or 3.3 V to VD, LVD must be

DGND.

10 Digital Ground (Input) - Ground for the internal logic and digital I/O.

11 Core Logic Power (Output) - Internally generated low voltage power supply for digital logic.

12 Power (Input) - Positive power supply for the internal regulators and digital I/O.

13 Analog Power (Output) - Internally generated positive power for the analog section and I/O.

14 Analog Ground (Input) - Ground reference for the internal analog section and I/O.

15

Positive Voltage Reference (Output) - Positive reference voltage for the internal ADC sampling

circuits.

16 Common Mode Voltage (Output) - Filter connection for internal common mode voltage.

17

18

Antialias Filter Connection (Output) - Antialias filter connection for ADC inputs.

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

20 specification table.

21 Over Current Reference Setting (Input) - Sets the reference for over current detection.

22,23

27,28

33,34

37,38

Power Ground (Input) - Ground for the individual output power half-bridge devices.

24

Output Ramp Capacitor (Input) - Used by the PWM Popguard Transient Control to suppress the

initial pop in half-bridge-configured outputs.

25,30,

31,36

High Voltage Power (Input) - High voltage power supply for the individual half-bridge devices.

26

29

32

PWM Output (Output) - Amplified PWM power outputs.

35

39

40

Logic Level PWM Output (Output) - Logic Level PWM switching signals.

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

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

42 External Thermal Warning (Input) - Input for an external thermal warning signal. Configurable via

the I²C control port.

43

Auxiliary Port Serial Audio Data Out (Output) - Output for two’s complement auxiliary port serial

data.

44 Auxiliary Port Serial Clock (Output) - Serial clock for the auxiliary port serial interface.

Auxiliary Port Left Right Clock (Output) - Determines which channel, Left or Right, is currently

45 active on the serial audio data line.

AD0 (Input) - Sets the LSB of the I²C device address. Sensed on the release of RST.

46

System Clock (Input/Output) -Clock source for the internal logic, processing, and modulators. This

pin should be connected to through a 10kΩ to ground when unused.

47 Crystal Oscillator Output (Output) - Crystal oscillator driver output.

48 Crystal Oscillator Input (Input) - Crystal oscillator driver input.

-

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

page 65 for more information.

DS726PP1

9

Share Link: