Panasonic KX-TVM200E, Service Manual

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18.2. SPECIFICATIONS OF THE 4-PORT DIGITAL EXPANSION CARD (KX-
TVM204X)
BLOCK SPECIFICATIONS MAP No. DESCRIPTIONS
DSP TI TMS320VC5409-80
Digital signal processor IC811
IC817 80Mips DSP
frequency: 8.000MHz
Core frequency: 80.00MHz
The function for two ports is included in one tip.
ECO DPT interface Custom LSI for PCC
digital PBX extension interface port
DPT) IC705A
IC705B frequency: 16.384MHz
The function for two ports is included in one tip.
DPT Interface Circuit Slot Interface Circuit for 4-port DPT
Interface CN702A
CN702B The DPT interface for four ports consists of two
RJ-11 connectors.
DC-DC Converter Circuit 1.8v for DSP core power
3.3v back up circuit - 1.8v: DC-DC converter
18.3. 4-PORT DIGITAL INTERFACE CARD
The 4-port digital interface card is equipped with DSP for voice data processing and ECO (dedicated ASIC) to build the DPT
interface, and it provides an interface with the PBX and processes voice signals. The installation of one 4-port digital interface
card makes it possible to simultaneously process voice signals at four ports.
18.3.1. DSP
The DSP has functions to compress and decompress voice data of voice mail units, generates and receives DTMF tones,
detects AGC, VOX and CPT, and controls the volume and playback speeds, etc. The number of installed channels is two per
DSP. Up to 12 DSPs (24 channels) at the maximum are controlled by the host CPU and iVDC (ASIC).
DSP Function
DSP TI TMS320VC5409-80
Clock & MIPS External Input 8.000MHz, Processing Speed: 80MIPS
Operating Voltage I/O: 3.3V, DSP Core: 1.8V
Voice
Compression/Decompression IMA-ADPCM 32kbps
AGC Analog Type AGC, Variable Parameter
Echo Canceller Tail Length 8ms, 16ms
VOX Detection Adjustable Range of Sensitivity: -55dBm ~ -25dBm
Silence Detection Adjustable Range of Sensitivity: -55dBm ~ -25dBm
TONE Detection 300Hz ~ 640Hz, 1000Hz ~ 1200Hz (for FAX CNG Tone)
[Call Progress Tone]
Busy Tone / Dial Tone / Ring Back Tone / Reorder Tone
Speech Endpoint Detection (Silence, Cyclic Tone, Continuance Tone)
[Voice Detection]
VOX or VAD
[FAX]
CNG Tone
DTMF Detection 0 - 9, *, #, A - D Detectable Range 40msec or more / Interdigit Pause 40msec
TONE Output Including DTMF, Voluntary Frequency TONE Playback
VOLUME CONTROL Recording Output Stage, Playback Output Stage for Gain Control with PBX.
+2dB ~ -8dB
Adjustable Playback Speed Same Speed Rate ~ Double-Speed Rate
Number of Channels Installed 2ch/1chip
• • • • Configuration
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KX-TVM200E / KX-TVM200NE