AWINIC AW8155B Manual

Non-crack-noise, ultra-low-thd+n, ultra-low-emi, second generation class-d audio amplifier

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Non-Crack-Noise, Ultra-Low-THD+N, Ultra-Low-EMI,

Second Generation Class-D Audio Amplifier

Features

 Ultra low THD+N:0.007%

 AB/D operate mode

 Two NCN level：0.65w and0.85w

 Unique RNS

 High SNR:95dB

 EEE Function, Greatly reduces EMI over the

full bandwidth

 Excellent Pop-Click Suppression

 No VREF capacitor

 Pin compatible with AW8155(A) AW8145

 One-pulse control

 Filter-Free Class-D Architecture

 High PSRR (75dB at 217Hz)

 Low Shutdown Current (<0.1A)

 Power Supply Range: 2.5V~5.5V

 Over-Current Protection

 Over-Temperature Protection



Small

FCQFN

Package

Applications

 Cellular Phones

 MP3/PMP

 GPS



Digital Photo Frame



HAC ( Hearing Aid Compatibility )

www.awinic.com

1.5mmX1.5mmX0.55mm-9L

General Description

The AW8155B is a non-crack-noise (NCN), ul-

tra-low-EMI, filter-free, AB/D output mode se-

lection, unique RNS technology, second gen-

eration Class-D audio amplifier. Ultra low

THD+N, Unique NCN function, which adjusts

the system gain automatically while detecting

the "Crack" distortion of output signal, protects

the speaker from damage at high power levels

and invites the user to bask in immense musical

enjoyment.

AW8155B NCN output power can be set to

0.65w or 0.85w for different speakers, this fea-

ture is embedded in order to protect speakers

from damage caused by an excessive sound

level.

The AW8155B features a unique RNS tech-

nology, which effectively reduces RF energy,

attenuate the RF TDD-noise, an acceptable

audible level to the customer.

The AW8155B features the EEE (Enhanced

Emission Elimination) function which greatly

reduces EMI over the full bandwidth. The

AW8155B achieves better than 20dB margin

under FCC limits with 24 inch of cable.

The filter-free PWM architecture and internal

gain setting reduces external components

count, board area consumption, system cost

and simplifies the design. The over-current,

over-temperature is prepared inside of the de-

vice.

The AW8155B is available in an ultra small

FCQFN 1.5mmX1.5mmX0.55mm-9L package.

The AW8155B is specified over the industrial

temperature range of -40℃ to +85℃.

AW8155B

Jul. 2022 V1.3

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Summary of Contents for AWINIC AW8155B

Page 1  Excellent Pop-Click Suppression AW8155B NCN output power can be set to 0.65w or 0.85w for different speakers, this fea-  No VREF capacitor ture is embedded in order to protect speakers ...
Page 2: Typical Application
AW8155B Jul. 2022 V1.3 Typical Application 1μF 33nF 33nF AW8155B GPIO CTRL AGND PGND Figure 1. AW8155B Application Schematic With Single-Ended Input www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 3: Pin Definition
AW8155B Jul. 2022 V1.3 Pin Configuration and Top Mark AGND AGND PGND CTRL Production Tracing Code Figure 2. Pin Configuration and Top Mark of AW8155B Pin Definition Symbol Description Positive audio input Power Supply Positive audio output AGND Analog ground...
Page 4 AW8155B Jul. 2022 V1.3 Typical Application 1μF 33nF 33nF AW8155B GPIO CTRL AGND PGND Figure 3. AW8155B Application Schematic With Single-Ended Input 1μF 33nF 33nF AW8155B GPIO CTRL AGND PGND Figure 4. AW8155B Application Schematic With Differential Input www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 5 AW8155B Jul. 2022 V1.3 1μF 33nF 33nF AW8155B Inductor GPIO CTRL AGND PGND Figure 5. AW8155B HAC Application Schematic With Single-Ended Input 1μF 33nF 33nF AW8155B Inductor GPIO CTRL AGND PGND Figure 6. AW8155B HAC Application Schematic With Differential Input www.awinic.com...
Page 6: Ordering Information
=25℃,VDD=4.2V,RL=8Ω+33uH） mode CTRL operating NCN power （V/V）（W） √ mode 1 Class_D 0.65 √ mode 2 Class_D 0.85 (Note) mode 3 Test mode 4 Class_AB Note: mode 3 is internal test mode www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 7: Electrical Characteristics
NCN output power f=1kHz，R =4.2V 0.65 Attack time(-11dB) =4.2V Release time(11dB) =4.2V Max attenuation =4.2V Output noise f=20Hz-20kHz,input AC grounded = 8Ω+33uH Signal-to-noise ratio = 5 V, P = 1 W, R www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 8 CTRL high level hold time =2.5V to 5.5V 0.75 CTRL low level hold time =2.5V to 5.5V 0.75 CTRL turn on delay time =2.5V to 5.5V LATCH CTRL turn off delay time =2.5V to 5.5V www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 9: Measurement Setup
Jul. 2022 V1.3 MEASUREMENT SETUP AW8155B features switching digital output, as shown in Figure 7. Need to connect a low pass filter to VOP/VON output respectively to filter out switch modulation frequency, then measure the differential output of filter to obtain analog output signal.
Page 11 AW8155B Jul. 2022 V1.3 OUTPUT POWER vs VIN OUTPUT POWER vs VIN mode1 mode2 =4.2V =4.2V f=1kHz f=1kHz =8Ω+33μH =8Ω+33μH 0.05 0.05 0.01 0.01 VIN ( Vp ) VIN ( Vp ) www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 12 AW8155B Jul. 2022 V1.3 NCN POWER vs SUPPLY VOLTAGE 1.00 0.85w 0.90 =8Ω+33uH f=1kHz 0.80 0.70 0.60 0.65w 0.50 0.40 mode1 mode2 0.30 0.20 0.10 0.00 Supply Voltage ( V ) www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 13 VOP & VON 50us/div 10ms/div Class_AB start up time Class_AB shutdown time CTRL CTRL VOP & VON VOP & VON 50us/div 10ms/div NCN attack time NCN release time VOP-VON VOP-VON 10ms/div 200ms/div www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 14: Functional Block Diagram
AW8155B Jul. 2022 V1.3 Functional Block Diagram Class-AB Input Class-D Output Buffer Modulator Module Stage CTRL NCN & System Oscillator Control AW8155B AGND PGND Figure 9. Functional Block Diagram of AW8155B www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 15: Operation
AW8155B NCN output power can be set to 0.65W or 0.85W for different speaker, this feature is em- bedded in order to protect speakers from damage caused by an excessive sound level.
Page 16 Anti-interference One Pulse Control Function Diagram AW8155B select each mode by one-wire pulse control, as shown in figure 12. When CTRL pin pull high form shutdown mode, there is one rising edge, AW8155B start to work and set Gain=18dB, NCN level=0.65W.
Page 17 Figure 14. Schematic Diagram of Power Supply Voltage and RF Signal during GSM RF Operation fully inhibit the conduction and radiation interference by the AWINIC unique circuit architecture. Effec- tively improve the ability to suppress TDD Noise. Conduction noise suppression...
Page 18 TDD Noise. In order to enhance the audio power amplifier PSRR in the input resistance and input capacitance mis- match case, AW8155B features a unique conduction noise suppression circuit, making the power amplifier to maintain a high PSRR value even in input resistance, the input capacitance deviation of 10% or more, this greatly inhibits the generation of conducted noise.
Page 19 NCN cycles quickly. Slower attack times cause the NCN to ignore the fast transients, and instead act upon longer, louder passages. Selecting an attack time that is too slow can lead to increased distortion in the case of the No Clip function. Attack time is set 40ms~55ms in AW8155B. Release time Release time is the time it takes for the gain to return to its normal level once the audio signal returns below the NCN threshold.
Page 20 When the condition is removed, the AW8155B reactivate itself. When the junction temperature is high, the over-temperature circuit shutdown the device. The circuit switches back to normal operation when the temperature decreases to safe levels.
Page 21: Applications Information
Ferrite Chip Bead and Capacitor The AW8155B passed FCC and CE radiated emissions with no ferrite chip beads and capacitors with speaker trace wires 24 inch.Use ferrite chip beads and capacitors if device near the EMI sensitive circuits and/or there are long leads from amplifier to speaker, placed as close as possible to the output pin.
Page 22 1. Try to provide a separate short and thick power line to AW8155B, the copper width is recommended to be larger than 1.2mm. The decoupling capacitors should be placed as close as possible to power supply pin.
Page 23: Tape And Reel Information
Note：The above picture is for reference only. Please refer to the value in the table below for the actual size DIMENSIONS AND PIN1 ORIENTATION Pin1 Quadrant (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) 0.76 All dimensions are nominal www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 24: Package Description
AW8155B Jul. 2022 V1.3 Package Description 1.50±0.10 PIN1 CORNER 1.50±0.10 TOP VIEW 0.55±0.05 0~0.05 0.10 REF SIDE VIEW 0.50 TYP 8X(0.26±0.05) 0.50 TYP SYMM 1.00 REF SYMM 0.31 REF BOTTOM VIEW Unit：mm www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 25 9X( 0.26) SYMM 0.50 TYP 0.05 MIN 0.05 MAX All AROUND All AROUND SOLDER MASK SOLDER MASK OPENING OPENING METAL UNDER METAL SOLDER MASK NON SOLDER MASK DEFINED SOLDER MASK DEFINED Unit: mm www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 26 60 - 150 seconds Time above TL , 217℃（tL） Peak temperature（Tp） 260℃ 20 - 40 seconds Time within 5℃ of peak temperature(tp) Ramp-down rate 6℃/second max. 8 minutes max. Time 25℃ to peak temperature www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 27: Revision History
Version Release date Description V1.0 2022-03-30 Initial release V1.1 2022-04-13 Update Typical Operating Characteristic V1.2 2022-06-13 Update POD and Land Pattern Data 1. Update Functional Block Diagram V1.3 2022-07-29 2. Update Reflow www.awinic.com COPYRIGHT ©2022 SHANGHAI AWINIC TECHNOLOGY CO. LTD.
Page 28 Reproduction of AWINIC information in AWINIC data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. AWINIC is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions.

AWINIC AW8155B Manual

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