Asus M930 Service Manual Page 33

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GTC Service Manual
ASUS Proprietary 33
8.3
8.3 8.3
8.3 WCDMA Block Diagram
WCDMA Block DiagramWCDMA Block Diagram
WCDMA Block Diagram
Key Components
Duplexer (U900)
1. TX to ANT Insertion Loss (1920...1980MHz) 1.2dB
2. ANT to RX: Insertion Loss (2110...2170MHz) 1.9dB
3. TX to RX: 57dB
WCDMA Transceiver RF3100 (U906)
1. Single band application (UMTS band1)
2. 3GPP release 5, power class 3
3. Zero Intermediate Frequency
WCDMA PA (U903)
1. VCC2.75V
2. VDD1.8V
Coupler (U905)
Coupling19.30 ± 1.00 dB
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