CDB6422 Cirrus Logic Inc, CDB6422 Datasheet - Page 3
CDB6422
Manufacturer Part Number
CDB6422
Description
Development Kit
Manufacturer
Cirrus Logic Inc
Datasheet
1.CDB6422.pdf
(30 pages)
Specifications of CDB6422
Silicon Manufacturer
Cirrus Logic
Application Sub Type
Telephone
Kit Application Type
Communication & Networking
Silicon Core Number
CS6422
Description/function
Audio DSPs
Operating Supply Voltage
5 V to 12 V
Product
Audio Modules
Kit Contents
Evaluation Board
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
CS6422
DS295DB2
4. USAGE EXAMPLES ....................................................................................................................... 12
5. SCHEMATICS.................................................................................................................................. 17
6. REVISION HISTORY ....................................................................................................................... 29
Figure 1. Power ..................................................................................................................................... 17
Figure 2. Acoustic Input......................................................................................................................... 18
Figure 3. Acoustic Output...................................................................................................................... 19
Figure 4. Network Output ...................................................................................................................... 20
Figure 5. Network Input ......................................................................................................................... 21
Figure 6. u-Law Codec .......................................................................................................................... 22
Figure 7. DAA (POTS Interface)............................................................................................................ 23
Figure 8. DTMF Transceiver ................................................................................................................. 24
Figure 9. CS6422 .................................................................................................................................. 25
Figure 10. RS-232 Interface .................................................................................................................. 26
Figure 11. Microcontroller...................................................................................................................... 27
Figure 12. Keypad and DIP Switch ....................................................................................................... 28
4.1 CS6422 Usage Notes: ............................................................................................................. 12
4.2 Setting the Acoustic Coupling: ................................................................................................. 12
4.3 Jumper configuration: .............................................................................................................. 13
4.4 Usage Scenario #1: Analog Phone Call with Separated Speaker and Microphone ................ 14
4.5 Usage Scenario #2: Cellular Call through Analog Network Interface ..................................... 14
4.6 Usage Scenario #3: Cellular Call Through Digital Network Interface ..................................... 15
3.2.13 doff - DTMF Transmit Off ......................................................................................... 10
3.2.14 dtmf [x] - DTMF Transmit On .................................................................................... 10
3.2.15 kd [0..e] - Keypad Down Event ................................................................................. 10
3.2.16 ku [0..e] - Keypad Up Event ..................................................................................... 10
3.2.17 st [x] - Single Tone Transmit On ............................................................................... 10
3.2.18 pd [1..4] - Push Button Down Event ......................................................................... 10
3.2.19 pu [1..4] - Push Button Up Event .............................................................................. 11
3.2.20 vol_up - CS6422 RVol Up ........................................................................................ 11
3.2.21 vol_down - CS6422 RVol Down ............................................................................... 11
3.2.22 mute - Mute .............................................................................................................. 11
3.2.23 unmute - Unmute ...................................................................................................... 11
3.2.24 save [x] - Save Current CS6422 Configuration ........................................................ 11
3.2.25 recall [x] - Recall CS6422 Configuration .................................................................. 11
3.2.26 ring - DAA Ring Event .............................................................................................. 11
3.2.27 mwr [abcd ef g] - Memory Write (8515) .................................................................... 11
3.2.28 uc - UC Jumper Set .................................................................................................. 11
3.2.29 ext - EXT Jumper Set ............................................................................................... 12
3.2.30 d {number} - Dial Phone Number ............................................................................. 12
3.2.31 ? - List Commands ................................................................................................... 12
LIST OF FIGURES
CDB6422
3