LG KP135, Service Manual

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3. TECHNICAL BRIEF
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Notes:
1. Supply regulated by internal LDO3 and should not be connected to any other supply
2. Internally connected as Synth supply (Co SDM + Charge pump)
3. Supply regulated by internal LDO2 and should not be connected to any other supply
Table 1 AD6548/9 Pin Descriptions
No Name Description No Name Description
1 VCC_FE Front end supply (IP) 17 VCC_REF Reference Oscillator Supply (IP)
2 I I baseband input/output
18 VAFC/ AD6548 Crystal Freq control (IP)
N/C AD6549: Spare Pin
3 IB I baseband input/output 19 REFIN Crystal Connection
4 VCC_BBI Baseband I, TX path supply (IP) 20 REFINB Crystal Connection
5 SDATA Serial port data 21 REF_OP Reference Frequency Output
6 SCLK Serial port clock 22 QB Q baseband input/output
7 SEN Serial port enable 23 Q Q baseband input/output
8 N/C Not connected 24 VCC_BBQ Baseband Q supply (IP)
9 VLDO3 TX LDO Output (1) 25 RX1900B PCS 1900 LNA input
10 TXOP_LO Transmit O/P (850/900MHz) 26 RX1900 PCS 1900 LNA input
11 TXOP_HI Transmit O/P (1800/1900MHz) 27 RX1800B DCS 1800 LNA input
12 VCC_TXVCO TX VCO supply (1) 28 RX1800 DCS 1800 LNA input
13 VDD Serial interface supply 29 RX900B E-GSM LNA input
14 VBAT Battery I/P for LDO reg’s 30 RX900 E-GSM LNA input
15 VLDO1 LDO regulator Output (2) 31 RX850B GSM 850 LNA input
16 VLDO2 LO VCO Supply (3) 32 RX850 GSM 850 LNA input
GOMPLIANT TO JEDEC STANDARDS MO-220-VHHD-2