Midian TT-9 User manual

1
TT-9
DTMF Dialing Encoder
Manual Revision: 2011-07-15

2
SPECIFICATIONS
Operating Voltage 5.5-15 VDC
Operating Current 3 mA
PTT Output Current 250 mA
Audio Output Level 0-750 mV(rms)
Audio Output Impedance 1 K or 50 K
Twist 0-3 dB
Max Tone Distortion 2%
Interkey Time (Auto PTT) 2 seconds
Adjustment Pots 1 Turn
Operating Temperature -30° to +60°C
Dimensions with Bezel Frame (standard) 2.4" x 1.9" x 0.4"
Dimensions without Bezel Frame 2.0” x 1.5" x 0.25"
GENERAL INFORMATION
The TT-9 is a 12-digit DTMF dial encoder with snap-dome keypad in a mountable bezel frame. The TT-9 will
automatically assert the PTT output when a button is pressed and hold the PTT output for 2 seconds for
subsequent digits to follow. The DTMF tones are generated out the TX Audio Output for as long as the key is
pressed.
The following diagram shows the DTMF tone pairs generated when a particular digit is pressed. For example
when the 1 digit is pressed the TT-9 will generate 697 Hz and 1209 Hz simultaneously.
1 2 3
4 5 6
7 8 9
* 0 #
697 Hz
770 Hz
852 Hz
941 Hz
1209
Hz 1336
Hz 1477
Hz

3
HARDWARE INSTALLATION
Be certain to follow standard anti-static procedures when handling any of Midian’s products.
Connector P1
P1-1 – Green – TX Audio Output – Connect to a high impedance audio point in the transmitter modulator.
P1-2 – Red – 5.5 - 15 VDC – Connect to switched battery point in the radio.
P1-4 – Black – Ground – Connect to the nearest ground plane in the radio.
P1-5 – Blue – Speaker Output– Connect to the high side of the radio's speaker. The speaker completes the
ground for the emitter follower Q3. CAUTION: When attaching this lead to a 4 or 8 Ohm speaker, add a 100
Ohm resistor in series with this blue lead to limit current. When using 20-40 Ohm speakers, the onboard resistor
in series with Q3 should be sufficient.
P1-9 – White – PTT Output – Connect to the PTT switch of the radio. The PTT Output gives an open-collector to
ground when activated and is rated at 100 mA continuous.
The remaining 8 wires are not connected.
HARDWARE ALIGNMENT
DTMF Output Level: The DTMF output level can be adjusted for 0-750 mV RMS by adjusting R22. In a wide
band system, set R22 to 3.3 KHz (66% of 5 KHz) of deviation per EIA specifications. In a narrow band system,
set the R22 to 1.65 KHz (66% of 2.5 KHz) of deviation per EIA specifications.
R-22

4
OPERATION
DTMF Dialing: Press the desired sequence on the 12-digit keypad. When the first digit is pressed the TT-9 will
assert the PTT Output and generate the tones out the TX Audio output. The PTT Output will be held for
approximately 2 seconds. The TT-9 will generate the DTMF tones for as long as a button is pressed.
TECHNICAL NOTES
Radio Compatibility: Midian has taken the utmost care to ensure the option board integrates into the radio with
minimal impact to the features of the radio. However, some features may not be available in the radio when an
option board is used. If a feature is not available, please contact Midian to see if the feature can be added.
MIDIAN CONTACT INFORMATION
Midian Electronics Inc.
2302 East 22nd Street
Tucson, Arizona 85713 USA
Orders: 1-800-MIDIANS
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.midians.com

1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
4.7K
R1
.022u
C1
.0022u
C2
15K
R2
.1u
C3
.001u
C4
560p
C5
39K
R3 200K R4
1.2M
R5
-
+
2
3
1
4 8
LM358
U2:1
-
+
6
5
7
LM358
U2:2
+5V
VAN
20K
R8
B25
Q1
+5V
100K
R7
10K
R6
10K
R9
+5V
2 3
A4
D1:1
1 3
A4
D1:2
560p
C6
10K
R13
+5V
2 3
A4
D2:1
1 3
A4
D2:2
560p
C7
10K
R14
+5V
2 3
A4
D3:1
1 3
A4
D3:2
560p
C8
560p
C10 .001u
C11 +
.47u
C12
OUT 1
SENSE 2 SHDN
3
GND
4
ERR 5
VTAP
6
FDBK
7
IN
8
MIC2951
VR1
+VIN
+
.47u
C13
+5V *
C9
10K
R15
+5V
CS 3
SCLK 4
SI 5
SO 6
VCC
2
NC1
8
ORG
1
GND
7
CAT93C46
U3
.1u
C14
+5V
100K
R16
0
123
456
789
* #
10K
R10
+5V
10K
R11
+5V
10K
R12
+5V
OSC2 42
TCAP
41
D7 39
OSC1 43
A5 7
A6 6
A7 5
A4 8
A3 9
A1 11
A0 12
C4
27
C1
30
C6
25
GND
22
TCMP 38
IRQ
2
VDD 44
VPP 4
SS 37
B3 16
B0 13
B1 14
A2 10
C5
26
C3
28
C0
31
C2
29
C7
24
B4 17
B7
21
B6 20
RES
1
B2 15
B5 19
SCK
36
MOSI
35
MISO
34
RDI
32
TDO
33
NC4
3
NC1 18
NC2
23
NC3
40
MC68HC705C8
U1
.1u
C15
+5V
4.7K
R54 D25
Q8
HORN
4.7K
R53
B25
Q7
1K
R49
BUSY
1K
R50
CALL
1K
R51
PTT
4.7K
R52
560p
C26
D25
Q6
100p
C25
4.7K
R48
4.7K
R46
20K
R24
10K
R25
20K
R26
10K
R27
20K
R28
10K
R29
20K
R30
10K
R31
20K
R32
10K
R33
20K
R34
10K
R35
20K
R36
10K
R37
20K
R38
20K
R39
Q1
11
Q2
12
Q4
14
Q3
13
IN+
1
GS 3
VRef
4
INH
5
ESt 16
IN- 2
PWDN
6
StD
15
OSC2
8
OSC1
7
TOE
10
VSS
9
St/GT 17
VDD 18
*
U4
VAN
11
33
22
1M
R41
100K
R40
.022u
C23
470K
R42
1.2M
R43
23
A4
D4:1
13
A4
D4:2
.1u
C24
+5V
4.7K
R44
D25
Q3
+VIN
82R
R45
BSS
Q5
B25
Q4
47K
R47
+VIN
13 A7
D5:1
3 2
A7
D5:2 JU4
JU5
22K
R18
39K
R21
11 33
22
10K
R22
.01u
C18
22K
R19 100K
R20
560p
C19
D25
Q2
27K
R23
100p
C21
+VIN
+VIN
TX TONE OUT
[GRN]
P1:1
+VIN
[RED]
+5.5 - 15V
P1:2
COR IN
[BRN]
P1:3
GND
[BLK]
P1:4
ALERT TONE
[BLU]
SPKR OUT
P1:5
TONE IN
[ORG]
P1:6
MON/SQ OUT
[YEL]
P1:7
MIC MUTE OUT
[GRN/W]
P1:8
PTT OUT
[WHT]
P1:9
SCAN/DISABLE OUT
[GRY/W]
P1:10
PTT IN
[GRY]
P1:11
MONITOR IN
[ORG/W]
PROG IN
P1:12
EMER/AUX IN
[VIO]
P1:13
22p
C16
22p
C17
4.7M
R17
.1u
C22
+5V
CP
CJS
1991-09-23 DML
2013-12-19
B-2
1 of 1 7249
MIDIAN ELECTRONICS, INC.
DATE:
DESIGN:
DWN BY:
REV:
APPR
COPYRIGHT ©
REV
SHEET PROJECT NUMBER
DOCUMENT NAME
SCHEMATIC
2013
TT-9
.47u
C20
NOTES:
* = NOT INSTALLED
DTMF DECODER
2 TONE
5 TONE
PULSE TONE
DECODER 3.58 MHz
Y1
PIBP001
PIBP002
COBP0
PIBP101
PIBP102
COBP1
PIBP201
PIBP202
COBP2
PIBP301
PIBP302
COBP3
PIBP401
PIBP402
COBP4
PIBP501
PIBP502
COBP5
PIBP601
PIBP602
COBP6
PIBP701
PIBP702
COBP7
PIBP801
PIBP802
COBP8
PIBP901
PIBP902
COBP9
PIBP1001
PIBP1002
COBP10
PIBP1101
PIBP1102
COBP11
PIC101 PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIC401
PIC402
COC4
PIC501
PIC502
COC5
PIC601
PIC602
COC6
PIC701
PIC702
COC7
PIC801
PIC802
COC8
PIC901
PIC902
COC9
PIC1001
PIC1002
COC10
PIC1101
PIC1102
COC11
PIC1201
PIC1202
COC12
PIC1301
PIC1302
COC13
PIC1401
PIC1402
COC14
PIC1501
PIC1502
COC15
PIC1601
PIC1602
COC16
PIC1701
PIC1702
COC17
PIC1801
PIC1802
COC18
PIC1901
PIC1902
COC19
PIC2001 PIC2002
COC20
PIC2101
PIC2102
COC21
PIC2201 PIC2202
COC22
PIC2301
PIC2302
COC23
PIC2401
PIC2402
COC24
PIC2501
PIC2502
COC25
PIC2601
PIC2602
COC26
PID102 PID103
COD1:1
PID101 PID103
COD1:2
PID202 PID203
COD2:1
PID201 PID203
COD2:2
PID302 PID303
COD3:1
PID301 PID303
COD3:2
PID402
PID403
COD4:1
PID401
PID403
COD4:2
PID501PID503
COD5:1
PID502PID503
COD5:2
PIJU401 PIJU402
COJU4
PIJU501 PIJU502
COJU5
PIP101
COP1:1
PIP102
COP1:2
PIP103
COP1:3
PIP104
COP1:4
PIP105
COP1:5
PIP106
COP1:6
PIP107
COP1:7
PIP108
COP1:8
PIP109
COP1:9
PIP1010
COP1:10
PIP1011
COP1:11
PIP1012
COP1:12
PIP1013
COP1:13
PIPAD101
COPAD1
PIPAD201
COPAD2
PIPAD301
COPAD3
PIPAD401
COPAD4
PIQ10B
PIQ10C
PIQ10E
COQ1
PIQ20B
PIQ20C
PIQ20E
COQ2
PIQ30B
PIQ30C
PIQ30E
COQ3
PIQ40B
PIQ40C
PIQ40E
COQ4
PIQ50D
PIQ50G
PIQ50S
COQ5
PIQ60B
PIQ60C
PIQ60E
COQ6
PIQ70B
PIQ70C
PIQ70E
COQ7
PIQ80B
PIQ80C
PIQ80E
COQ8
PIR101 PIR102
COR1
PIR201 PIR202
COR2
PIR301PIR302
COR3
PIR401PIR402
COR4
PIR501 PIR502
COR5
PIR601 PIR602
COR6
PIR701
PIR702
COR7
PIR801
PIR802
COR8
PIR901
PIR902
COR9
PIR1001
PIR1002
COR10
PIR1101
PIR1102
COR11
PIR1201
PIR1202
COR12
PIR1301
PIR1302
COR13
PIR1401
PIR1402
COR14
PIR1501
PIR1502
COR15
PIR1601
PIR1602
COR16
PIR1701 PIR1702
COR17
PIR1801 PIR1802
COR18
PIR1901 PIR1902
COR19
PIR2001
PIR2002
COR20
PIR2101PIR2102
COR21
PIR2201
PIR2202
PIR2203
COR22
PIR2301 PIR2302
COR23
PIR2401PIR2402
COR24
PIR2501
PIR2502
COR25
PIR2601PIR2602
COR26
PIR2701
PIR2702
COR27
PIR2801PIR2802
COR28
PIR2901
PIR2902
COR29
PIR3001PIR3002
COR30
PIR3101
PIR3102
COR31
PIR3201PIR3202
COR32
PIR3301
PIR3302
COR33
PIR3401PIR3402
COR34
PIR3501
PIR3502
COR35
PIR3601 PIR3602
COR36
PIR3701
PIR3702
COR37
PIR3801PIR3802
COR38
PIR3901
PIR3902
COR39
PIR4001
PIR4002
COR40
PIR4101
PIR4102
PIR4103
COR41
PIR4201
PIR4202
COR42
PIR4301PIR4302
COR43
PIR4401 PIR4402
COR44
PIR4501 PIR4502
COR45
PIR4601PIR4602
COR46
PIR4701
PIR4702
COR47
PIR4801PIR4802
COR48
PIR4901 PIR4902
COR49
PIR5001 PIR5002
COR50
PIR5101 PIR5102
COR51
PIR5201 PIR5202
COR52
PIR5301PIR5302
COR53
PIR5401PIR5402
COR54
COtb0sch1
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU1016
PIU1017
PIU1018
PIU1019
PIU1020
PIU1021
PIU1022
PIU1023
PIU1024
PIU1025
PIU1026
PIU1027
PIU1028
PIU1029
PIU1030
PIU1031
PIU1032
PIU1033
PIU1034
PIU1035
PIU1036
PIU1037
PIU1038
PIU1039
PIU1040
PIU1041
PIU1042
PIU1043PIU1044
COU1
PIU201
PIU202
PIU203
PIU204
PIU208
COU2:1
PIU205
PIU206
PIU207
COU2:2
PIU301
PIU302 PIU303
PIU304
PIU305
PIU306 PIU307
PIU308
COU3
PIU401
PIU402
PIU403
PIU404PIU405 PIU406
PIU407
PIU408
PIU409
PIU4010
PIU4011
PIU4012
PIU4013
PIU4014
PIU4015
PIU4016
PIU4017
PIU4018
COU4
PIVR101
PIVR102PIVR103
PIVR104
PIVR105
PIVR106 PIVR107
PIVR108
COVR1
PIY101 PIY102
COY1

- This page intentionally left blank-

PAC101 PAC102
COC1
PAC201 PAC202
COC2
PAC301
PAC302
COC3
PAC401
PAC402
COC4
PAC501
PAC502
COC5
PAC601 PAC602
COC6
PAC701 PAC702
COC7
PAC801 PAC802
COC8
PAC901 PAC902
COC9
PAC1001 PAC1002
COC10
PAC1101
PAC1102
COC11
PAC1201
PAC1202
COC12
PAC1301
PAC1302
COC13
PAC1401
PAC1402
COC14
PAC1501
PAC1502
COC15
PAC1601
PAC1602
COC16
PAC1701
PAC1702
COC17
PAC1801 PAC1802
COC18
PAC1901
PAC1902
COC19
PAC2002PAC2001
COC20
PAC2101 PAC2102
COC21
PAC2201
PAC2202
COC22
PAC2301
PAC2302
COC23
PAC2401
PAC2402
COC24
PAC2501
PAC2502
COC25
PAC2601 PAC2602
COC26
PAD101
PAD102
PAD103
COD1
PAD201
PAD202
PAD203
COD2
PAD301
PAD302
PAD303
COD3
PAD401 PAD402
PAD403
COD4
PAD502
PAD501
PAD503
COD5
PAJU401
PAJU402
COJU4
PAJU501
PAJU502
COJU5
PAP1013
PAP1012
PAP1011
PAP1010
PAP109
PAP108
PAP107
PAP106
PAP105
PAP104
PAP103
PAP102
PAP101
COP1
PAPAD101
COPAD1
PAPAD201
COPAD2
PAPAD301
COPAD3
PAPAD401
COPAD4
PAQ10C
PAQ10B PAQ10E
COQ1
PAQ20C
PAQ20B PAQ20E
COQ2
PAQ30C
PAQ30B
PAQ30E
COQ3
PAQ40C
PAQ40B
PAQ40E
COQ4
PAQ50S
PAQ50G
PAQ50D
COQ5
PAQ60C
PAQ60B PAQ60E
COQ6
PAQ70C
PAQ70B
PAQ70E
COQ7
PAQ80C
PAQ80B
PAQ80E
COQ8
PAR101 PAR102
COR1
PAR201 PAR202
COR2
PAR301
PAR302
COR3
PAR401
PAR402
COR4
PAR501
PAR502
COR5
PAR601
PAR602
COR6
PAR701 PAR702
COR7
PAR801
PAR802
COR8
PAR901
PAR902
COR9
PAR1001
PAR1002
COR10
PAR1101
PAR1102
COR11
PAR1201 PAR1202
COR12
PAR1301 PAR1302
COR13
PAR1401 PAR1402
COR14
PAR1501
PAR1502
COR15
PAR1601 PAR1602
COR16
PAR1701 PAR1702
COR17
PAR1801 PAR1802
COR18
PAR1901
PAR1902
COR19
PAR2001
PAR2002
COR20
PAR2101
PAR2102
COR21
PAR2203
PAR2201
PAR2202
COR22
PAR2301 PAR2302
COR23
PAR2401 PAR2402
COR24
PAR2501 PAR2502
COR25
PAR2601
PAR2602
COR26
PAR2701 PAR2702
COR27
PAR2801 PAR2802
COR28
PAR2901 PAR2902
COR29
PAR3001 PAR3002
COR30
PAR3101 PAR3102
COR31
PAR3201
PAR3202
COR32
PAR3301 PAR3302
COR33
PAR3401 PAR3402
COR34
PAR3501 PAR3502
COR35
PAR3601
PAR3602
COR36
PAR3701
PAR3702
COR37
PAR3801 PAR3802
COR38
PAR3901
PAR3902
COR39
PAR4001 PAR4002
COR40
PAR4103
PAR4101
PAR4102
COR41
PAR4201
PAR4202
COR42
PAR4301
PAR4302
COR43
PAR4401 PAR4402
COR44
PAR4501
PAR4502
COR45
PAR4601 PAR4602
COR46
PAR4701
PAR4702
COR47
PAR4801 PAR4802
COR48
PAR4901 PAR4902
COR49
PAR5001 PAR5002
COR50
PAR5101 PAR5102
COR51
PAR5201 PAR5202
COR52
PAR5301
PAR5302
COR53
PAR5401
PAR5402
COR54
COtb0sch1
PAU101
PAU102
PAU103
PAU104
PAU105
PAU106
PAU107
PAU108 PAU109 PAU1010 PAU1011 PAU1012 PAU1013 PAU1014 PAU1015 PAU1016 PAU1017
PAU1018
PAU1019
PAU1020
PAU1021
PAU1022
PAU1023
PAU1024
PAU1025
PAU1026
PAU1027
PAU1028
PAU1029PAU1030PAU1031PAU1032PAU1033PAU1034 PAU1035 PAU1036PAU1037PAU1038PAU1039
PAU1040
PAU1041
PAU1042
PAU1043
PAU1044
COU1
PAU208 PAU207 PAU206PAU205
PAU204 PAU203 PAU202 PAU201
COU2
PAU308PAU307 PAU306 PAU305
PAU304 PAU303 PAU302 PAU301
COU3
PAU4018 PAU4017 PAU4016PAU4015PAU4014PAU4013 PAU4012 PAU4011PAU4010
PAU409 PAU408 PAU407 PAU406 PAU405 PAU404 PAU403 PAU402 PAU401
COU4
PAVO1013
PAVO1012
PAVO1011
PAVO1010
PAVO109
PAVO108
PAVO107
PAVO106
PAVO105
PAVO104
PAVO103
PAVO102
PAVO101
PAVO1014 PAVO1015 PAVO1016 PAVO1017
PAVO1018
PAVO1019
PAVO1020
PAVO1021
PAVO1022
PAVO1023
PAVO1024
PAVO1025
PAVO1026
PAVO1027
PAVO1028
PAVO1029PAVO1030PAVO1031PAVO1032PAVO1033PAVO1034 PAVO1035 PAVO1036PAVO1037PAVO1038PAVO1039
PAVO1040
PAVO1041
PAVO1042
PAVO1043
PAVO1044
PAVO10S
PAVO10G PAVO10D
PAVO10C
PAVO10B
PAVO10E
COVO1
PAVR108 PAVR107 PAVR106PAVR105
PAVR104 PAVR103 PAVR102 PAVR101
COVR1
PAY102PAY101
COY1

PABP001
PABP002
COBP0
PABP101
PABP102
COBP1
PABP201
PABP202
COBP2
PABP301
PABP302
COBP3
PABP401
PABP402
COBP4
PABP501
PABP502
COBP5
PABP601
PABP602
COBP6
PABP701
PABP702
COBP7
PABP801
PABP802
COBP8
PABP901
PABP902
COBP9
PABP1001
PABP1002
COBP10
PABP1101
PABP1102
COBP11
COtb0sch2
PAVO201
PAVO202
PAVO2013
PAVO2012
PAVO2011
PAVO2010
PAVO209
PAVO208
PAVO207
PAVO206
PAVO205
PAVO204
PAVO203
COVO2