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PAMS Technical Documentation
TFF-3 WLL Terminal
Transceiver TFF-3C
(Czech version)
Issue 1 08/99 Nokia Mobile Phones Ltd.
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TFF-3
Transceiver TFF-3C (Czech version)
AMENDMENT RECORD SHEET
PAMS Technical Documentation
Amendment
Number
Date Inserted By Comments
08/99
Issue 1
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Transceiver TFF-3C (Czech version)
CONTENTS
Introduction 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modules 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Characteristics 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exploded View of TFF-3C 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly Parts of TFF–3C 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts list of WN1C VARIATION MODULE 9. . . . . . . . . . . . . . . .
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Introduction
Functional Description
The transceiver electronics consist of a RF/System PCB. The system and
rf submodules are interconnected with PCB wiring. The unit can be connected to service accessories with the system connector and to land–line
phone with the land–line connector. The antenna is connected to the unit
with the antenna connector
The RF block is designed for a hand portable phone, which operates in
NMT450 systems. Purpose of the RF module is to receive and demodulate
radio frequency signal from the base station and to transmit a modulated RF
signal to the base station.
Modules
PAMS Technical Documentation
Name of module Type des. Material code Material code
Basic transceiver TFF-3C 0041502
–System/RF module JM1C 0201425
– Basic module WN1 0201416
– Variation module WN1C 0201423
– Software module ( Basic SW ) 0240831
– Mechanics assembly parts MTFF3 0261932
– Swap package
0062697
RF Characteristics
General RF Specification for the TFF–3C is included in the next table.
Characteristic Value / Comments
RX Frequency range 461.310...465.730 MHz
TX Frequency range 451.310...455.730 MHz
Channel spacing 20 kHz
Number of channels 222
TX Frequency deviation ≤± 3.75 kHz (± 4.05 kHz with 4 kHz supervisory signal)
FFSK deviation
• 1200 Hz (”1” frequency) ± 2240 Hz
• 1800 Hz (”0” frequency) ± 3360 Hz
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ratio
Transceiver TFF-3C (Czech version)
Transmitter branch Specification for the TFF–3C is included in the next
table.
Parameter Unit/value
Frequency band 451.310–455.730MHz
Output RF power 0.15 W 1.5 W 7.0 W
TFF-3
Spurious signals (TX ON)
Spurious signals (STANDBY)
Modulation method FM
Deviation 4.7 kHz max
Deviation with supervisory signal 5.0 kHz max
FFSK deviation 1200 Hz (”1”)
1800 Hz (”0”)
Harmonic distortion < 5 %
Audio Frequency responce 300–500 Hz
500–2000 Hz
2–3 KHz
pre–emphasis
Adjacent Channel Power < –70 dBc
Audio Intermodulation products < –20 dB
Residual Modulation linear
psophometric
< 0.25 uW, f = 100kHz – 1GHz
< 1 uW, f = 1GHz – 4GHz
< 2 nW, f = 100kHz – 1GHz
< 20 nW, f = 1GHz – 4GHz
2240 Hz dev. +/– 400 Hz
3360 Hz dev. +/– 600 Hz
+1–3 dB
+/– 1 dB
+1–3 dB
6 dB/Oct
< –20 dB (peak)
< –40 dB (rms)
Audio Muting > 40 dB
Compander SW enabled compression
dynamic range
Number of power levels 3
Frequency error +/– 2.5 kHz
2:1
3 – –50 dB +/– 1 dB
Synthesizer specifications for the TFF–3C are included in the next two
tables.
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TX synthesizer:
Parameter Unit/value
PAMS Technical Documentation
Transmitted frequency difference from BS in
conversation mode
Frequency range 451.310–455.730MHz
Output level 14 +/– 1 dB (incl. 1st buffer)
Phase Noise < –1 18 dBc/Hz (@25KHz)
Settling Time CHN–>CHN+? < 35 ms
+/– 2.5 k Hz
RX synthesizer specification:
Parameter Unit/value
Frequency Tolerance at Startup +/– 2.5 ppm
Frequency range 461.310–465.730MHz
Output level 1 +/– 3 dB
Phase Noise < –1 18 dBc/Hz (@25KHz)
Settling Time CHN–>CHN+? < 25 ms
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Exploded View of TFF-3C
TFF-3
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PAMS Technical Documentation
Assembly Parts of TFF–3C
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 0201425 System/RF module JM1C
2 9457131 B–cover 3D24024
3 9460301 Immobilizer frame dmd04754
4 9790256 A–cover 1D24369
5 Nut
6 Seal
7 4 pcs Pad
8 14 pcs 6291768 Screw M3x6 pz FeZn Clear
9 0660064 Antenna AMF–4S
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PAMS Technical Documentation
Transceiver TFF-3C (Czech version)
Parts list of WN1C Variation Module
0201423 WN1C VARIATION MODULE v. 1.1
ITEM CODE DESCRIPTION VALUE TYPE
R432 1430780 Chip resistor 12 k 5 % 0.063 W 0402
R485 1430690 Chip jumper 0402
C601 2320534 Ceramic cap. 8.2 p 0.25 % 50 V 0402
C616 2320550 Ceramic cap. 39 p 5 % 50 V 0402
L612 3645175 Chip coil 12 n 5 % Q=12/100 MHz 0
G420 4350167 Vco 450–460mhz 2.8v 15ma NMT450
G520 4350169 Vco 416–425mhz 2.8v 12ma NMT450
Z640 4508286 Dupl 451–456/461–466mhz 87.5x51
Z930 4510135 Saw filter 464.5+–3 M /4DB 5.2x5.2
N620 4352537 RF pow.hybr.
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