KX-NCP1104XJ (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 7

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DSP (IC2), SDRAM (IC5, IC6), PHY (IC4), DSP system clock 10MHz (X1), Ethernet clock 50MHz (X2).

• Power Supply : +1.2V and +3.3V.
• Package : 484-ball PFBGA.
• Operating Clock : 10MHz.
• Supported Voice Codec Standards : G.711, G.729A.
• Echo Cancellation.
• RTP/RTCP.
• Fax Tones Detection and Generation.
• DTMF Detection and Generation.

• Execution Area of DSP Firmware.

• Power Supply : +3.3V.
• Package : 64-pin TQFP.
• 100BASE-TX IEEE 802.3u fast Ethernet transceiver.
• RMII  I/F.

As for the power of this card, +3.3V is supplied from board-to-board connector (CN1). DC/DC converter generates 1.2VD from a
+3.3V power supply.

Block Name

Functional Outline

Power Supply

P.S.

DC/DC Power Supply.
Supply +1.2V from 3.3V power supply.

DSP I/F

DSP CON

Connector to mount VoIP DSP Sub Board.
Mount the LAN Interface Part including DSP on this board.

DSP

Realization of 4-Channel and VoIP function
Supported Voice Codec Standards: G.711, G.729A
Echo Cancellation
RTP/RTCP
Fax Tones Detection and Generation
DTMF Detection and Generation

OSC10M

System Clock of DSP (10MHz)

PHY

100BASE-TX IEEE 802.3u fast Ethernet transceiver.
RMII I/F.

OSC50M

Quartz crystal oscillator for DSP and PHY(50MHz)