26
KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T
4.8.
Circuit Operation (RF Part)
General Description:
RF part includes Transmitter and Receiver functions. Digital signals (Mainly voice data) that come from DSP, are modulated and
are transmitted. On the other hand, received signals are demodulated and go out to DSP.
4.8.1.
Power Supply Circuit
As indicated below, the various voltages are supplied to each block.
V_PA, about 3.2 V at base unit or 3.1 V at handset, is supplied to the Power amplifier.
IC741 is 3.0 V at base unit or 2.7 V at handset Regulator and outputs VRF (3.0 V at base unit or 2.7 V at handset) by order of
RADIO_EN signal.
V_RF is approximately 4.0 V (Base Unit) or 3.1 V (Handset).
Содержание KX-TG9341T - Cordless Phone - Metallic
Страница 2: ...2 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 28: ...28 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 4 10 Signal Route ...
Страница 29: ...29 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T RF part signal route ...
Страница 35: ...35 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 36: ...36 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 7 2 Error Messages ...
Страница 37: ...37 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 7 3 Troubleshooting ...
Страница 38: ...38 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 39: ...39 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 40: ...40 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 69: ...69 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 70: ...70 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 11 1 2 Handset ...
Страница 71: ...71 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 11 1 3 Charger Unit ...
Страница 73: ...73 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T ...
Страница 78: ...78 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T Memo ...
Страница 88: ...88 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T Memo ...
Страница 92: ...92 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T Memo ...
Страница 107: ...107 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 2 KX TG9342T ...
Страница 108: ...108 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 3 KX TG9343S T ...
Страница 109: ...109 KX TG9341T KX TG9342T KX TG9343S KX TG9343T KX TG9344T KX TGA931S KX TGA931T 16 4 4 KX TG9344T ...