After Sales
Technical Documentation
RAE/RAK–1N
Baseband
Page 2–34
Original, 08/96
The codec generates DTMF tones (key beeps) to the earphone and in
PHF mode to the PHF speaker. When an external audio accessory is
used, the DTMF tones are directed to the external audio output. In
handportable and PHF modes the codec generates ringing tones and also
some warning tones to the PHF speaker. In external HF mode they are
driven to the external speaker line. Some tones come also from the
network.
One codec output pin is used to switch on/off the microphone bias circuit.
Both microphones are biased simultaneously regardless of which one is
actually used.
External microphone line is used also to detect if the junction box is
connected to the bottom connector. Microphone signal is therefore
low–pass filtered and routed to the MCU A/D converter named as the
JCONN signal.
Also external earphone signal is multiplexed. 100 kohm pull down resistor
is used to turn power on to the HF accessories.
Main components
– Audio codec ST5090
Contains e.g. PCM codec, audio routing switches, 3 differential
microphone input channels, 2 differential earpiece output chan-
nels, ringing tone and DTMF generators. Physically the codec
is inside MCM2.
– Power amplifier LM4861 (N400)
Used as the booster amplifier for Personal Hands–Free.
– Transistors BC859C (V380) and BC849C (V381)
Used for implementing the microphone bias switch.
ASIC
Introduction
The ASIC takes care of the following functions:
– interface between MCU and UIF
– interface between MCU, DSP and RFI
– hardware accelerator functions to DSP
– clock generation and disable/enable
– RF controls
– UIF interface
– Timers
– MBUS or RBUS activity detection
– SIM interface
Содержание 9000i
Страница 7: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 1 Overview ...
Страница 67: ...After Sales Technical Documentation RAE RAK 1N Series Amendment 1 04 97 Chapter 3 Transceiver GE8 GE9 RF Block ...
Страница 93: ...After Sales Technical Documentation RAE RAK 1N Series Chapter 4 Transceiver GE8 GE9 UIF Module ...
Страница 106: ...After Sales Technical Documentation RAE RAK 1N UIF Page 4 14 Amendment 1 04 97 This page intentionally left blank ...
Страница 107: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 5 Transceiver GE8 GE9 SIM Flex Module ...
Страница 112: ...After Sales Technical Documentation RAE RAK 1N SIM Flex Page 5 6 Original 08 96 This page intentionally left blank ...
Страница 113: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 6 PDA Hardware Module GP1 ...
Страница 116: ...After Sales Technical Documentation RAE RAK 1N PDA Hardware Page 6 4 Original 08 96 This page intentionally left blank ...
Страница 158: ...After Sales Technical Documentation RAE RAK 1N PDA Hardware Page 6 46 Original 08 96 This page intentionally left blank ...
Страница 159: ...After Sales Technical Documentation RAE RAK 1N Series Amendment 1 04 97 Chapter 7 Service Software ...
Страница 243: ...After Sales Technical Documentation RAE RAK 1N Series Original 05 97 Chapter 8 Faultfinding Disassembly ...
Страница 287: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 9 Service Tools ...
Страница 301: ...After Sales Technical Documentation RAE 1N Series Original 04 97 Chapter 10 Schematics ...
Страница 303: ...RAE 1N Original 08 96 10 11 Page 1 Figure 1 Component Layout Bottom ...
Страница 304: ...RAE 1N Original 08 96 10 12 Page Figure 2 Component Layout Top ...
Страница 305: ...RAE 1N Original 08 96 10 13 Page Figure 3 Baseband Circuit Diagram PWRU ...
Страница 306: ...RAE 1N Original 08 96 10 14 Page Figure 4 Baseband Circuit Diagram MCM1 ...
Страница 307: ...RAE 1N Original 08 96 10 15 Page Figure 5 Baseband Circuit Diagram MCM2 ...
Страница 308: ...RAE 1N Original 08 96 10 16 Page Figure 6 RF TX Circuit Diagram ...
Страница 309: ...RAE 1N Original 08 96 10 17 Page Figure 7 RF RX Circuit Diagram ...
Страница 310: ...RAK 1N 10 20 Page Amendment 1 04 97 Figure 18 PCN Component Layout Bottom ...
Страница 311: ...RAK 1N 10 21 Page Amendment 1 04 97 Figure 19 PCN Component Layout Top ...
Страница 312: ...RAK 1N 10 22 Page Amendment 1 04 97 Figure 20 PCN RF TX ...
Страница 313: ...RAK 1N 10 23 Page Amendment 1 04 97 Figure 21 PCN RF RX ...
Страница 314: ...RAK 1N 10 24 Page Amendment 1 04 97 Figure 22 UIF Schematic PCN ...
Страница 315: ...RAK 1N 10 25 Page Amendment 1 04 97 Figure 23 UIF Component Layout PCN ...
Страница 316: ...RAE 1N Original 05 97 10 3 Page Figure 1 PDA Block Diagram Edit 82 for layout 13a ...
Страница 317: ...RAE 1N Original 05 97 10 4 Page Figure 2 PDA Power Unit PWRU Edit 108 for layout 13a ...
Страница 318: ...RAE 1N Original 05 97 10 5 Page Figure 3 PDA Serial Interface SIRU Edit 24 for layout 13a ...
Страница 319: ...RAE 1N Original 05 97 10 6 Page Figure 4 PDA MCU and Memory PROCU Edit 121 for layout 13a ...
Страница 320: ...RAE 1N Original 05 97 10 7 Page Figure 5 PDA EMIU Edit 21 for layout 13a ...
Страница 321: ...RAE 1N Original 05 97 10 8 Page Figure 6 Keyboard matrix Edit 24 for layout 13a ...
Страница 322: ...RAE 1N Original 05 97 10 9 Page Figure 7 PDA Memory Edit 28 for layout 13a ...
Страница 323: ...RAE 1N Original 05 97 10 10 Page Figure 8 PDA Component Layout 13a ...
Страница 324: ...RAE 1N Original 08 96 10 18 Page Figure 1 UIF Schematic ...
Страница 325: ...RAE 1N Original 08 96 10 19 Page Figure 2 Component Layout Uif ...
Страница 326: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Accessories ...
Страница 340: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 CARK60 Installation Guide ...
Страница 352: ...After Sales Technical Documentation Appendix 2 RAE RAK 1N Amendment 1 04 97 PARTS LISTS ...
Страница 399: ...After Sales Technical Documentation RAE RAK 1N Parts Lists Page 48 Amendment 1 04 97 Mechanical Assy Parts RAE 1N ...
Страница 401: ...After Sales Technical Documentation RAE RAK 1N Parts Lists Page 50 Amendment 1 04 97 This page intentionally left blank ...
Страница 402: ...After Sales Technical Documentation Appendix 1 RAE RAK 1N Original 08 96 QUICK GUIDE ...
Страница 434: ......