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Vega

DSP-223

4.2.2.15 DSP-223 Audio Block Diagram

See the previous programming sections on inserting/removing the Pre-Emphasis, AGC, 3.5kHz Low Pass
Filter, and the 400ms Delay options.

4.2.2.16 DSP-223 Frequency Response

CTCSS

Generator

Line RX

Audio

Notch

Filter

Pre-

Emphasis

AGC

3.5kHz

Low Pass

+

CTCSS Audio

Radio TX

Audio

400ms

Delay

Notch

Filter

Line TX

Audio

Radio RX

Audio

Tone

Detectors

+

Handset
Speaker

Figure 13 Software Audio Path Block Diagram

Figure 14 Tx Frequency Response With No Additional Filtering

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Summary of Contents for DSP-223

Page 1: ...Model DSP 223 Tone Remote Panel Operating Software 2 6 Technical Manual March 2005 P N 803274 Rev D...

Page 2: ...TX Level Adjust Procedure 6 3 5 CTCSS Level Continuous Tone coded Squelch 6 3 6 DSP 223 Detection Frequencies 6 4 Programming and Operation 7 4 1 Software Installation 7 4 2 Windows Application Softw...

Page 3: ...Revision F 23 9 3 PCB P N 750561 Revision G 24 9 4 PCB P N 750561 Revision H 25 10 Warranty Service Repair and Comments 26 11 DSP 223 Specifications 27 Table of Figures Figure 1 DB25 Rear Connector P...

Page 4: ......

Page 5: ...control Local handset port for monitoring activity and transmission back to base or to radio Front panel test points and level set potentiometers RS 232C port on front panel for configuration via Wind...

Page 6: ...are inputs from the console and the audio present on this pair will be sent to the radio There are several jumper selections that must be made for the line connection Set the jumpers according to your...

Page 7: ...the rear 6 pin connector can be used The audio source must be after the squelch circuit to prevent sending continuous noise to the remote console If a high impedance point in the receiver is used shi...

Page 8: ...s designed to generate a full range of CTCSS frequencies Each function tone can be assigned its own CTCSS frequency for PTT operation or a number of CTCSS tones can be set using different function ton...

Page 9: ...17 in the A position the DSP223 will perform like previous versions When J17 is in the B position a 6dbm gain is added to the input of the ADC after PTT is engaged Setup is different with J17 in B Whe...

Page 10: ...line connect an oscilloscope meter reading true RMS or a meter with an output in dBm to the Line TX test points TP 7 TP 8 on the front of the DSP 223 There are three ways to generate the required tes...

Page 11: ...223 Launch the CD and click on Firmware then click on DSP 223 Follow the instructions for saving the file to the PC When the application starts an opening screen as shown in Figure 4 should appear 4...

Page 12: ...he controlling consoles It is possible to put the unit into the dual tone mode and send single tones and have it recognize them correctly This mode is more prone to errors however The best way to make...

Page 13: ...itor Relay Options The MONITOR function provided in the DSP 223 decodes the valid tone sequence and provides a relay contact closure to turn off the sub audible tone decoder circuit in the radio recei...

Page 14: ...zed at any particular time by assigning separate groups For example if F1 has R1 selected as its relay and F2 has R2 selected as its relay setting the two Relay Group numbers to the same value will re...

Page 15: ...L H L L H L 50 H H L L H L 19 L H L L H H 51 H H L L H H 20 L H L H L L 52 H H L H L L 21 L H L H L H 53 H H L H L H 22 L H L H H L 54 H H L H H L 23 L H L H H H 55 H H L H H H 24 L H H L L L 56 H H...

Page 16: ...110 9 46 173 8 62 241 8 15 67 0 31 114 8 47 177 3 63 250 3 16 69 4 32 118 8 48 179 9 64 254 1 Figure 7 CTCSS Selection Chart 4 2 2 8 DIG4 Setup Button This grouping allows the DSP 223 to mute the rad...

Page 17: ...cally a 20dBm signal is used Some experimentation with this value may be required to get the proper performance Figure 9 Digital 5 Setup Screen Tone On OFF Time sets the duty cycle of the tone to crea...

Page 18: ...alue to set the deviation to the FCC required 40 level based on your previous hardware gain settings Morse Code String specifies the string of up to 50 alphanumeric characters to be transmitted Standa...

Page 19: ...output pin 11 of the DB25 connector continues to be active This allows CTCSS to be sent on radios that don t have separate input pin for its injection into the audio stream The user will need to make...

Page 20: ...and the 400ms Delay options 4 2 2 16 DSP 223 Frequency Response CTCSS Generator Line RX Audio Notch Filter Pre Emphasis AGC 3 5kHz Low Pass CTCSS Audio Radio TX Audio 400ms Delay Notch Filter Line TX...

Page 21: ...Tone Remote 17 Figure 15 Tx Frequency Response With 3 5KHz Low Pass Filter Figure 16 Tx Frequency Response With 3 5KHz Filter and Pre Emphasis...

Page 22: ...down to 10dB 0 5 Increase CTCSS Gain Sending this command will increase the CTCSS gain by 1dB Multiple repetitions of this sequence will increase the CTCSS Gain up to 10dB 0 6 Decrease CTCSS Gain Send...

Page 23: ...o source Once the analog signal has been reconstructed on U3 and U4 they can be measured by conventional techniques 5 3 Troubleshooting Aid Problem Possible Solution What is position A on a jumper plu...

Page 24: ...ower On button in the dialog box and then apply power to the DSP 223 8 After a couple seconds the message Power is On will appear in the message window of the dialog box This indicates that communicat...

Page 25: ...gle Ended Low Impedance B Balanced 600 Ohm A B J15 TX Audio A Single Ended Low Impedance B Balanced 600 Ohm A B J16 Digital I O Pull up Voltage A V B 5VDC A B J19 RX Line Termination A 600 Ohms B 10K...

Page 26: ...22 Vega DSP 223 9 Schematics and Parts Lists 9 1 PCB P N 750561 Revisions A to E...

Page 27: ...his drawing written description or specification Is a proprietary product of TELEX Lincoln NE and shall not be released disclosed nor duplicated without the written permission of TELEX Telex Communica...

Page 28: ...MMBZ5V6ALT1 SOT 23 508046000T D9 22 3 DIODE SMD4004 16016481SMT D10 D11 D12 23 4 THYRISTOR TVB230 050 710106 E1 E2 E3 E4 24 1 FUSE 1 5A SMT FUSE 7101051 F1 25 4 POLYSWITCH miniSMDC050 2 7101045T F6 F...

Page 29: ...5 102515172T R28 R31 R44 R47 47 4 RESISTOR 267K 0805 102515441T R29 R30 R45 R46 48 1 RESISTOR 15 OHMS 0805 102515017T R35 49 6 RESISTOR 33K 0805 102515350T R37 R59 R60 R63 R101 R104 50 1 RESISTOR 332...

Page 30: ...coln Nebraska USA APPROVALS DR BY SBC DATE 01 17 2001 PROD ___ DATE ___ CHKD BY SBC DATE 01 18 01 APPD BY DEE DATE 01 18 01 879457 REV LEVEL PCB ASSY DSP223 MAIN BOARD BE TITLE PART NO C 76 1 IC TPS70...

Page 31: ......

Page 32: ...45 43 42 47 48 50 49 46 VR6 U23 5 6 7 TP10 1 TP11 1 TP9 1 TP12 TP2 R32 150 47 R25 R62 47 ADC1 47 R70 R144 47 R38 47 47 R145 R42 10K 0 047U C34 U23 10 9 8 C25 0 1UF C112 0 1UF 10V 10V 1800PF C29 R7 100...

Page 33: ...MON COM JP3 PTT COM JP2 R87 10K R86 1K DIG0 Q15 3 2 1 33K R101 ICBUTTS FB1 12V K3 6 1 10 5 8 3 D14 12V D13 12V 12V VR2 5 D1 2 1 D4 2 1 D8 2 1 R68 100K R98 100K C83 120P E3 TX RAD TP5 1 TX RAD RX RAD...

Page 34: ...Tone Remote 23 9 2 PCB P N 750561 Revision F...

Page 35: ...INTED CIRCUIT BOARD TO REV E J ADDED D18 D19 D20 TO ITEM 19 R95 R96 CHANGED TO 10K 02 60 02 02 12 02 AND ADDED TO ITEM 39 R151 ADDED TO ITEM 39 R63 TO 267K C37 TO 1UF AND ADDED TO ITEM 2 ADDED C32 C41...

Page 36: ...D19 D20 20 1 LED YELLOW RT ANGLE 1610631 D8 21 1 DIODE MMBZ5V6ALT1 SOT 23 508046000T D9 22 3 DIODE SMD4004 16016481SMT D10 D11 D12 23 4 THYRISTOR TVB230 050 710106 E1 E2 E3 E4 24 1 FUSE 1 5A SMT FUSE...

Page 37: ...805 102515117T R27 R32 R61 46 4 RESISTOR 562 OHMS 0805 102515172T R28 R31 R44 R47 47 5 RESISTOR 267K 0805 102515441T R29 R30 R45 R46 R63 48 1 RESISTOR 15 OHMS 0805 102515017T R35 49 4 RESISTOR 33K 080...

Page 38: ...APPD BY 879457 REV LEVEL PCB ASSY DSP223 MAIN BOARD BE TITLE PART NO N 75 1 IC CS5330A SO8WB 760264 U25 76 1 IC TPS70158 760306 U26 77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 SOCKET 78 1 IC EPM...

Page 39: ......

Page 40: ...40 SIDETONE 10UF C111 2 1 VDD 10UF C110 2 1 10UF C104 2 1 10UF C106 2 1 FB15 FB13 FB14 FB16 FB17 FB18 10K R18 2 1 1K R19 2 1 U22 12 13 14 J1 2 1 3 0 1UF C48 2 1 CTCSS FB21 2 1 0 1UF C45 2 1 1UF C20 FB...

Page 41: ...F E3 TP5 1 TX RAD RX RAD RX RAD R64 604 J12 3 2 1 220PF C79 C80 220PF J13 1 2 3 R93 10K R91 10K D7 VDD J14 3 2 1 J15 1 2 3 T1 3 2 1 6 5 4 J22 1 2 3 J24 3 2 1 RX RAD TX RAD RX RAD POWERIN J5 6 5 3 4 1...

Page 42: ...24 Vega DSP 223 9 3 PCB P N 750561 Revision G...

Page 43: ...ED TO ITEM 39 R63 TO 267K C37 TO 1UF AND ADDED TO ITEM 2 ADDED C32 C41 C52 TO ITEM 2 ITEM 1 TO QTY OF 49 ITEM 38 TO QTY OF 11 PCB TO REV F ON NEXT REV CHANGE THE FOLLOWING item 3 use 102881150t Item 8...

Page 44: ...7 D18 D19 D20 20 1 LED YELLOW RT ANGLE 1610631 D8 21 1 DIODE MMBZ5V6ALT1 SOT 23 508046000T D9 22 3 DIODE SMD4004 16016481SMT D10 D11 D12 23 4 THYRISTOR TVB230 050 710106 E1 E2 E3 E4 24 1 FUSE 1 5A SMT...

Page 45: ...20K 0805 102515329T R26 R36 R39 R52 45 3 RESISTOR 150 OHMS 0805 102515117T R27 R32 R61 46 4 RESISTOR 562 OHMS 0805 102515172T R28 R31 R44 R47 47 5 RESISTOR 267K 0805 102515441T R29 R30 R45 R46 R63 48...

Page 46: ...E TITLE PART NO N 73 1 IC UA7805CKTE SMT 760260T U21 74 2 IC TL084 SO14 4300047 U22 U23 75 1 IC CS5330A SO8WB 760264 U25 76 1 IC TPS70158 760306 U26 77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 S...

Page 47: ......

Page 48: ...U18 87 88 97 98 99 30 31 26 51 52 76 75 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 77 78 79 80 81 82 83 84 85...

Page 49: ...23 3 2 1 J25 1 2 3 J27 3 2 1 0 R105 R107 301 T3 4 5 6 1 2 3 J19 1 2 3 R134 604 T2 3 2 1 6 5 4 TP8 1 J21 1 2 3 SENSE D17 10K R90 10K R99 Q16 1 2 3 J10 8 7 6 5 4 3 2 1 12V 12V 10 R5 J7 1 2 3 4 5 6 7 8 9...

Page 50: ...Tone Remote 25 9 4 PCB P N 750561 Revision H...

Page 51: ...37 TO 1UF AND ADDED TO ITEM 2 ADDED C32 C41 C52 TO ITEM 2 ITEM 1 TO QTY OF 49 ITEM 38 TO QTY OF 11 PCB TO REV F ON NEXT REV CHANGE THE FOLLOWING item 3 use 102881150t Item 8 use 102881138t K R138 FROM...

Page 52: ...D18 D19 D20 20 1 LED YELLOW RT ANGLE 1610631 D8 21 1 DIODE MMBZ5V6ALT1 SOT 23 508046000T D9 22 3 DIODE SMD4004 16016481SMT D10 D11 D12 23 4 THYRISTOR TVB230 050 710106 E1 E2 E3 E4 24 1 FUSE 1 5A SMT F...

Page 53: ...20K 0805 102515329T R26 R36 R39 R52 45 3 RESISTOR 150 OHMS 0805 102515117T R27 R32 R61 46 4 RESISTOR 562 OHMS 0805 102515172T R28 R31 R44 R47 47 5 RESISTOR 267K 0805 102515441T R29 R30 R45 R46 R63 48...

Page 54: ...CKTE SMT 760260T U21 74 2 IC TL084 SO14 4300047 U22 U23 75 1 IC CS5330A SO8WB 760264 U25 76 1 IC TPS70158 760306 U26 77 1 SOCKET PLCC 44 PIN PLCC SOCKET 539030044 U27 SOCKET 78 1 IC EPM7032AE PLCC44 7...

Page 55: ......

Page 56: ...U18 87 88 97 98 99 30 31 26 51 52 76 75 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 77 78 79 80 81 82 83 84 85...

Page 57: ...23 3 2 1 J25 1 2 3 J27 3 2 1 0 R105 R107 301 T3 4 5 6 1 2 3 J19 1 2 3 R134 604 T2 3 2 1 6 5 4 TP8 1 J21 1 2 3 SENSE D17 10K R90 10K R99 Q16 1 2 3 J10 8 7 6 5 4 3 2 1 12V 12V 10 R5 J7 1 2 3 4 5 6 7 8 9...

Page 58: ...to incidental or consequential damages Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation may not apply to you This warranty gives the...

Page 59: ...oftware change Function Tone Detection Bandwidth 20 Hz around center of frequency DTMF Detection Bandwidth 25 Hz around center of frequency MON timer 10ms to 65seconds adjustable PTT Detect Frequencie...

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