Digital Voice Systems VC-20-PRJ25, Руководство пользователя

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VC-20-PRJ25 IMBE™ Vocoder Board
User’s Manual
Page 5
Section 3 – Technical Specifications
DVSI Confidential Proprietary
VC-20-PRJ25 Connector Signals
Name Type Description
VCC Power D5v +/- 5%
GND Power Digital Ground
+5v Power 5v +/- 10%
-5v Power Analog -5v +/- 10%
GND Anlg Power Analog Ground
ITXD Output Transmit data I channel
QTXD Output Transmit data Q channel
TXCK Input Transmit data bit clock (3.6 kHz)
FMEN Input Encoder frame flag (Active High)
IRXD Input Receive data I channel (MSB)
IRXD1 Input Receive data I channel
IRXD0 Input Receive data I channel (LSB)
QRXD Input Receive data Q channel (MSB)
QRXD1 Input Receive data Q channel
QRXD0 Input Receive data Q channel (LSB)
RXCK Input Receive data bit clock (3.6 kHz)
FMDE Input Decoder frame flag (Active High)
LOST Input Lost speech frame detected flag (Active High)
RESET Output Voice codec reset flag (Active High)
STATUS Output Voice codec status flag (Active High)
ENSLNCE Output Encoder Silence Detected (Active Low) Disabled
DESLNCE Input Decoder silence control (Active Low)
VFRO Output Analog speech output signal
VRXI Input Analog speech input signal
RUN Output Run Status Signal (Active High)
RESX Output Internal Reset Status (Active Low)
DINRS Input Reset Signal (Active High)
HD_SD Input Enable Soft-decision Decoding (Active Low)
FEC_OFF Input Disable error correction and interleaving (Active Low)