AUDIO

Amplifier

Manufacturers:

Фирма	Link	Продукция	Продажники
Diodes	https://www.diodes.com/	Amp, …	-
Nsiway	http://www.nsiway.com.cn/news/15.html	Amp, Touch controller, …	Компел, Чип-дип
Heroic	https://www.heroic.com.cn/	Amp, power, rgb driver, …	Компел
Hmsemi	https://hmsemi.com/	Amp AB\D, power, … много всякого разного!!!	?
Hmsemi	HM8881	6.5W	ClassD\AB	SOIC8	https://hmsemi.com/downfile/HM8881.PDF
Heroic	HT6873	0.2$	2.5W	ClassD	SOIC8	https://www.heroic.com.cn/public/uploads/file/20191114/1573699200606250.pdf
Nsiway	NS4150B, NS4150C	0.08$	2.5W	ClassD	SOIC8, MSOP8	https://static.chipdip.ru/lib/002/DOC013002158.pdf
Diodes	PAM8302A	0.12$	2.5W	ClassD	SOIC8, MSOP8, DFN8	https://www.diodes.com/assets/Datasheets/PAM8302A.pdf

Buzzers

Manufacturers:

CUI	https://www.cuidevices.com/catalog/audio/buzzers
JL WORLD	https://www.jlworld.com/products/pin/
KLS	https://klsele.com/products/Buzzers-Microphones-Speakers.html

audio indicators

internal drive circuit

drive

Vdc

dc voltage

Vac

ac voltage

audio transducers

external drive circuit

drive

Vo-p

Vp-p

Vdc

for 3 pin piezo ???? непонятно…

piezo elements

external drive circuit

Vp-p

sirens

CEM-1206S	CUI	audio transducer	Vo-p	6V
HCM1206A	JL WORLD	audio transducer	Vo-p	5V
L-KLS3-MT-12×09-B	KLS	audio transducer	Vo-p	5V
HCM1203X	JL WORLD	audio indicator	Vdc	3V
HCM1201X	JL WORLD	audio indicator	Vdc	1.5V

Drive circuit 1: (external, Vop)

Drive circuit 2 (external, Vpp 3pin piezo):

Drive circuit 3 (external, Vpp):

Microphone

Чувствительность микрофона приводят в dB, но при разных условиях:

f=1KHz, 0dB=1V/µbar

f=1KHz, 0dB=1V/pa

Use “Pascal (Pa)”indication of sensitivity as per the recommendation of I.E.C.(International Electro technical Commission).The Sensitivity of “Pa” will increase 20dB comparing with “ubar” indication.

Example: -60dB (0dB=1V/ubar) =-40dB (1V/Pa)

Mfg	P\N	Sensivity	Freq	SNR	RL	Op. Voltage	Current	Description	Link
RUICHI	DG06050CD-P	-46dB…-36dB (0dB=1V/µBar,1KHz), -3dB (3V)	20Hz…16KHz, Omni	60dB	2K2	4.5V (10V)	0.5mA	Электретный микрофон D6-H5-C1.9-TH	DG06050CD-P
VOISE	VS6050PS32	-35dB…-29dB (0dB=1V/Pa,1KHz), -3dB (2…1.5V)	55dBA	2K2	4.5V (1-10V)	0.5mA, 2V, 2K2	Электретный микрофон D6-H5-C1.9-TH
VOISE	VS6027PS30	-33dB…-27dB (0dB=1V/Pa,1KHz), -3dB (2…1.5V)	55dBA	2K2	2V (1-10V)	0.5mA, 2V, 2K2	Электретный микрофон D6-H2.7-C1.9-TH
SoniCrest	HMO0603A-60	-43dB…-37dB (0dB=1V/Pa,1KHz),	50Hz…16KHz, Omni	58dB	2K2	3V (10V)	0.5mA	Электретный микрофон D6-H5-SMD

Speaker

Manufacturers:

RUICHI	https://ruelectronics.com/
KLS	https://klsele.com/
?	динамики aliexpress
RUICHI	S1585	W10-L20	H4	1W	8R
RUICHI	HD-2040	W20-L40	H5.8	1W	8R
?	???	W20-L40	H5.8	2W	8R
RUICHI	S1801	D28	H6	2W	4R
KLS	L-KLS3-YS03B-32MM-8R2W	D32	H5	2W	8R