CS43L22 データシートの表示（PDF） - Cirrus Logic

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CS43L22

Low Power, Stereo DAC w/Headphone & Speaker Amps

Cirrus Logic 

1. PIN DESCRIPTIONS

Confidential Draft

3/4/10

CS43L22

SDA 1

SCL 2

AD0 3

SPKR_OUTA+ 4

VP 5

SPKR_OUTA- 6

SPKR_OUTB+ 7

VP 8

SPKR_OUTB- 9

-VHPFILT 10

GND/Thermal Pad

Top-Down (Through-Package) View

40-Pin QFN Package

30 AIN1B

29 AIN1A

28 AFILTB

27 AFILTA

26 AIN2B

25 AIN2A

24 AIN3B

23 AIN3A

22 AIN4B

21 AIN4A

Pin Name

SDA

SCL

AD0

SPKR_OUTA+

SPKR_OUTA-

SPKR_OUTB+

SPKR_OUTB-

VP

-VHPFILT

FLYN

FLYP

+VHP

HP/LINE_OUTB, A

VA

#

Pin Description

1 Serial Control Data (Input/Output) - SDA is a data I/O in I²C Mode.

2 Serial Control Port Clock (Input) - Serial clock for the serial control port.

3 Address Bit 0 (I²C) (Input) - AD0 is a chip address pin in I²C Mode.

4

6

7

PWM Speaker Output (Output) - Full-bridge amplified PWM speaker outputs.

9

5

8

Power for PWM Drivers (Input) - Power supply for the PWM output driver stages.

10 Inverting Charge Pump Filter Connection (Output) - Power supply from the inverting charge

pump that provides the negative rail for the headphone/line amplifiers.

11 Charge Pump Cap Negative Node (Output) - Negative node for the inverting charge pump’s fly-

ing capacitor.

12 Charge Pump Cap Positive Node (Output) - Positive node for the inverting charge pump’s flying

capacitor.

13 Positive Analog Power for Headphone (Input) - Positive voltage rail and power for the internal

headphone amplifiers and inverting charge pump.

14,15 Headphone/Line Audio Output (Output) - Stereo headphone or line level analog outputs.

16 Analog Power (Input) - Positive power for the internal analog section.

DS792F2

7

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