Datasheet > CS42L51_07

CS42L51_07

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
凌云 - CIRRUS		解码器编解码器放大器
页数	文件大小	规格书
88页	1582K
描述
Low Power, Stereo CODEC with Headphone Amp

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中文翻译

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数据手册

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CS42L51_07 数据手册

CS42L51

2. TYPICAL CONNECTION DIAGRAMS

See Note 4

1 µF

+1.8 V or +2.5 V

0.1 µF

1 µF

0.1 µF

Note 4:

Series resistance in the path of the power supplies must

be avoided. Any voltage drop on VA_HP will directly

impact the negative charge pump supply (VSS_HP) and

result in clipping on the audio output.

VA_HP

AOUTB

AOUTA

Headphone Out

Left & Right

FLYP

1.5 µF

1 µF

FLYN

0.022 µF

51.1 Ω

See Note 5

VSS_HP

1.5 µF

1 µF

GND_HP

470

Ω

* *Use low ESR ceramic capacitors.

Note 2 :

For best response to Fs/2 :

R_ext

Line Level Out

Left & Right

See Note 2

CS42L51

R_ext+ 470

4πFs R_ext× 470

C =

470

Ω

(

)

This circuitry is intended for applications where the

CS42L51 connects directly to an unbalanced output of the

device. For internal routing applications please see the

DAC Analog Output Characteristics section for loading

limitations.

Speaker Driver

Note 5 :

Larger capacitors, such as 1.5 µF, improves the charge

pump performance (and subsequent THD+N) at the full

scale output power achieved with gain (G) settings

greater than default.

AIN1A

Left Analog Input 1

100 Ω

1800 pF

1 µF

100 kΩ

100 Ω

AIN1B

AIN2A

MCLK

Right Analog Input 1

Left Analog Input 2

1 µF

SCLK

LRCK

100 Ω

1800 pF

100 kΩ

SDIN

Digital Audio

Processor

SDOUT

RESET

SCL/CCLK

AIN2B

BIAS1

Right Analog Input 2

Microphone Input

1 µF

MICIN1

AIN3A

SDA/CDIN

AD0/CS

1 µF

100 kΩ

BIAS2

AIN3B/MICIN2

Microphone Bias

R_LSee Note 3

0.1 µF

2 k

Ω

Note 3: The value of R_Lis dictated

by the microphone cartridge.

See Note 1

+1.8 V, +2.5 V

or +3.3 V

ADC_FILT+

DAC_FILT+

0.1 µF

Note 1:

Resistors are required for I²C

control port operation

10 µF

1 µF

AGND

150 pF

1 µF

AFILTA

AFILTB

* Capacitors must be C0G or equivalent

DGND

Figure 1. Typical Connection Diagram (Software Mode)

DS679F1

1...7 8 91011 12 13...88

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