TTE-7
DTMF Dialing Encoder
Manual Revision: 2010-04-16
Covers Hardware Revision: TTE-7:
7163A & Higher
1
Страница 1: ...TTE 7 DTMF Dialing Encoder Manual Revision 2010 04 16 Covers Hardware Revision TTE 7 7163A Higher 1...
Страница 2: ...ATION The TTE 7 is a 12 digit DTMF dial encoder with snap dome keypad in a mountable bezel frame The TTE 7 will automatically assert the PTT output when a button is pressed and hold the PTT output for...
Страница 3: ...ased by reducing R2 and R3 Use caution if the current gets too high it can burn up resistors R2 or R3 or Q1 CAUTION When attaching this lead to a 4 or 8 Ohm speaker add a 100 Ohm resistor in series wi...
Страница 4: ...es and in some audio circuits Any high frequency components generated by the digital to analog conversion process in U1 are filtered out by the low pass filter R5 and C13 The value of C13 can also be...
Страница 5: ...1 P0C1902 P0D1A01 P0D1A02 P0D1B01 P0D1B03 P0D2A01 P0D2A02 P0D2B01 P0D2B03 P0JP101 P0JP102 P0JP201 P0JP202 P0P2A01 P0P2B02 P0P2C03 P0P2D04 P0P2E05 P0P2F06 P0P2G07 P0P2H08 P0P2I09 P0P2J010 P0P2K011 P0P2...
Страница 6: ...This page intentionally left blank...
Страница 7: ...014 P0U1015 P0U1016 VR1 P0VR101 P0VR102 P0VR103 P0VR104 P0VR105 P0VR106 P0VR107 P0VR108 Y1 P0Y101 P0Y102 P0Y10GND P0C301 P0C401 P0JP102 P0U101 P0VR101 P0C102 P0C202 P0C302 P0C402 P0C502 P0C602 P0C702...
Страница 8: ...2 P0C1002 P0C1102 P0C1202 P0C1302 P0C1502 P0C1602 P0C1702 P0C1802 P0D202 P0P204 P0Q30S P0R402 P0R802 P0R1002 P0U106 P0VR102 P0VR103 P0VR106 P0VR107 P0Y10GND P0BP101 P0BP201 P0BP301 P0C1101 P0U1014 P0B...
