资料介绍
MTK RF Circuit Design ConceptMediaTek Inc.
RF Circuit Design Concept
JP Chen MediaTek 10 Sept, 2004
Outline
RF Circuit Schematic RF Circuit Layout RF Circuit Debugging RF Specification RF Measurement nd Source RF Components of 2 Qualification
MediaTek Inc.
2
Radio Transceiver Block Diagram
Capacitors Vreg SAW M SAW SAW RF Test Port Antenna Switch Module LBTX HBTX PCSRX Band Control Lines LPF LPF Loop Filter M M M Receiver Chain Vreg Vreg
MediaTek Inc.
3 Control
BSI 3 wire Interface Analog IQ interface
~
TXVCO
Synthesizer PLL
OSC
VAFC in 26MHz out
Power Amplifier
+
~ ~
APC
Loop Filter
OPLL Modulator MT612X APC in TXEN TX band select
3
RF Circuit Schematic