3. TECHNICAL BRIEF
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3.1 General Description
The L602i supports UMTS-2100, UMTS-800 DS-WCDMA, EGSM-900, DCS-1800, and PCS-1900. All
receivers and the UMTS transmitter use the radioOne
1
Zero-IF architecture to eliminate intermediate
frequencies, directly converting signals between RF and baseband. The EGSM, DCS1800 and
PCS1900 transmitters use a baseband-to-IF upconversion followed by an offset phase-locked loop
that translates the GMSK-modulated signal to RF.
1
QUALCOMM’s branded chipset that implements a Zero-IF radio architecture.
3. TECHNICAL BRIEF
L602i Dual UMTS and quad GSM band functional block diagram
Z3X-BOX.COM
Summary of Contents for L602i
Page 3: ... 4 Z 3 X B O X C O M ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Page 71: ...4 TROUBLE SHOOTING 72 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH Z 3 X B O X C O M ...
Page 83: ...4 TROUBLE SHOOTING 84 4 5 5 Check RF Rx Level TP1 TP3 TP4 Bias1 TP2 Z 3 X B O X C O M ...
Page 101: ...4 TROUBLE SHOOTING 102 LCD Control data flow Z 3 X B O X C O M ...
Page 113: ...4 TROUBLE SHOOTING 114 Z 3 X B O X C O M ...
Page 130: ...5 DOWNLOAD 131 Click on X button to use another function Z 3 X B O X C O M ...
Page 134: ...6 BLOCK DIAGRAM 135 Table 2 1 1 RF Block Component Z 3 X B O X C O M ...
Page 137: ...6 BLOCK DIAGRAM 138 Top Side Z 3 X B O X C O M ...
Page 138: ...6 BLOCK DIAGRAM 139 Bottom Side Z 3 X B O X C O M ...
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Page 149: ... 150 8 PCB LAYOUT Z 3 X B O X C O M ...
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Page 153: ... 154 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
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