BASE UNIT
HANDSET
Channel No
Transmit Frequency
Receive Frequency
Transmit Frequency
Receive Frequenc
1
1897.344
1897.344
1897.344
1897.344
2
1895.616
1895.616
1895.616
1895.616
3
1893.888
1893.888
1893.888
1893.888
4
1892.160
1892.160
1892.160
1892.160
5
1890.432
1890.432
1890.432
1890.432
6
1888.704
1888.704
1888.704
1888.704
7
1886.976
1886.976
1886.976
1886.976
8
1885.248
1885.248
1885.248
1885.248
9
1883.520
1883.520
1883.520
1883.520
10
1881.792
1881.792
1881.792
1881.792
Note:
Channel No. 10: In the Test Mode on Base Unit and Handset.
19. BLOCK DIAGRAM (BASE UNIT)
20. CIRCUIT OPERATION (BASE UNIT)
20.1. Outline
Base Unit consists of the following ICs as shown in
BLOCK DIAGRAM (BASE UNIT)
().
- DECT BBIC (Base Band IC): IC2
- Handling all the audio, signal and data processing needed in a DECT
base unit
- Controlling the DECT specific physical layer and radio section (Burst M
odule Controller section)
- ADPCM codec filter for speech encoding and speech decoding (DSP
section)
- Echo-cancellation and Echo-suppression (DSP section)
- Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
- DTMF receiver (DSP section)
- Clock Generation for RF Module
- ADC, DAC, timer, and power control circuitry
- All interfaces (ex: RF module, EEPROM, LED, Analog Front End, etc.)
- RF Module: IC3
- PLL Oscillator
- Detector
- Compress/Expander
- First/Second Mixer
49
Содержание KX-TCD410ALM
Страница 21: ... To exit the operation press any time 21 ...
Страница 24: ...Shown in Fig To Remove Remove 1 Lower Cabinet Screws 2 6 12 A 2 2 Main P C Board Main P C Board 9 2 Handset 24 ...
Страница 48: ...18 FREQUENCY TABLE MHz 48 ...
Страница 55: ...25 CPU DATA BASE UNIT 25 1 IC2 BBIC 55 ...
Страница 71: ...71 ...
Страница 72: ...31 CABINET AND ELECTRICAL PARTS LOCATION HANDSET 32 CABINET AND ELECTRICAL PARTS LOCATION CHARGER UNIT 72 ...
Страница 73: ...73 ...
Страница 74: ...33 ACCESSORIES AND PACKING MATERIALS 33 1 KX TCD410ALM ALS 33 2 KX TCD412ALM ALS 74 ...
Страница 75: ...33 3 KX A142ALM ALS 75 ...
Страница 76: ...34 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 34 1 Base Unit 76 ...
Страница 104: ...Clip Base PCB G N D S D A S C L 2 7V MODE SDA SCLK GND J104 J103 J102 J101 J100 ...
Страница 105: ...1 PROG PBF BOOK UP POWER CAN DOWN RIGHT REDIAL LEFT 1 2 3 6 5 7 0 R 4 9 8 INT MIC TALK 36 CN2 Marked ...
Страница 106: ...PbF IC1 IC2 80 30 50 5 8 4 1 1 11 18 1 IC3 Marked ...
Страница 108: ...4 1 5 8 PbF 1 28 18 IC3 IC2 IC1 11 64 1 16 17 32 49 48 33 Marked ...