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PoE Audio Speaker

Power over Ethernet (PoE) speakers provide system flexibility and therefore can be placed anywhere in a facility where Ethernet connections are available, regardless of available power sources. In order to achieve desired levels of efficiency and size reduction, PoE speakers require energy-efficient semiconductors packaged in very small, low-profile outlines. AEM manufactures a broad portfolio of discrete semiconductors that provide engineers with options for both reduced power consumption and decreased package size.

Block Diagram

PoE Audio Speaker Block Diagram
PoE speakers provide system flexibility and therefore can be placed anywhere in a facility where Ethernet connections are available, regardless of available power sources. In order to achieve desired levels of efficiency and size reduction, PoE speakers require energy efficient semiconductors packaged in very small, low profile outlines. Central Semiconductor manufactures a broad portfolio of discrete semiconductors that provide engineers with options for both reduced power consumption and decreased package size.

I/O Protection:
Transient Voltage Suppressors (TVS) 
C4SMAFL58A: 58V, 400W TVS (SMAFL) 
1SMB58CA: 58V, 600W bi-directional TVS (SMB)

ESD Transient Voltage Suppressors 
CFTVS5V0BULC: 5V, ultra-low capacitance, bi-directional, low profile (SOD-882L)

DSP/DAC:
Zener Diodes 
CMOZ5L1: 5.1V, 250mW, low idle current (SOD-523) 
CMOZ12L: 12V, 250mW, low idle current (SOD-523) 
CMDZ5L1: 5.1V, 250mW, low idle current (SOD-323)

ESD Transient Voltage Suppressors 
CFTVS5V0BULC: 5V, ultra-low capacitance, bi-directional, low profile (SOD-882L) CMO5V0LC: 5V, low capacitance, low profile (SOD-523) 
CTLTVS5V0B: 5V, bi-directional, low profile (TLM2D3D6)

Audio Amp:
Small Signal Transistors 
CMLT3820: 1A, 80V NPN Low VCE(SAT) (SOD-882L) 
CMLT3474: 1A, 40V Dual NPN/PNP Low VCE(SAT) (SOD-523)

MOSFETs 
CMLDM7002A: 280mA, 60V, Dual, N-Channel (SOT-563) 
CMLDM8002A: 280mA, 50V, Dual, P-Channel (SOT-563)

Zener Diodes 
CMOZ5L1: 5.1V, 250mW, low idle current Zener diode (SOD-523)

PoE Controller:
Schottky Bridge Rectifiers (Full Wave) 
CBRHDSH1-100: 1A, 100V Schottky Bridge (HD DIP) 
CBRHDSH2-100: 2A, 200V Schottky Bridge (HD DIP) 
CBRLDSH2-100: 2A, 100V Schottky Bridge (LPDIP) 
CBRDFSH1-40: 1.0A, 40V (BR DFN) 
CBRDFSH1-60: 1.0A, 60V (BR DFN) 
CBRDFSH1-100: 1.0A, 100V (BR DFN) 
CBRDFSH2-40: 2.0A, 40V (BR DFN) 
CBRDFSH2-100: 2.0A, 100V (BR DFN) 
CBRDFSH3-40: 3.0A, 40V (BR DFN) 
CBRDFSH3-60: 3.0A, 60V (BR DFN)

Schottky Diodes 
CMOZ5L1: 5.1V, 250mW, low idle current Zener diode (SOD-523)

MOSFETs 
CEDM7002AE: 300mA, 20V, low profile N-Channel MOSFET (SOT-883L) 
CEDM8004: 450mA, 30V, low profile P-Channel MOSFET (SOT-8