LG KG280 Service Manual - Page 17

Table 1 AD6548/9 Pin Descriptions, GOMPLIANT TO JEDEC STANDARDS MO-220-VHHD-2

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3. TECHNICAL BRIEF GOMPLIANT TO JEDEC STANDARDS MO-220-VHHD-2 No Name 1 VCC_FE 2I Description Front end supply (IP) I baseband input/output 3 IB I baseband input/output 4 VCC_BBI Baseband I, TX path supply (IP) 5 SDATA Serial port data 6 SCLK Serial port clock 7 SEN Serial port enable 8 N/C Not connected 9 VLDO3 TX LDO Output (1) 10 TXOP_LO Transmit O/P (850/900MHz) 11 TXOP_HI Transmit O/P (1800/1900MHz) 12 VCC_TXVCO TX VCO supply (1) 13 VDD Serial interface supply 14 VBAT Battery I/P for LDO reg's 15 VLDO1 LDO regulator Output (2) 16 VLDO2 LO VCO Supply (3) No Name 17 VCC_REF 18 VAFC/ N/C 19 REFIN 20 REFINB 21 REF_OP 22 QB 23 Q 24 VCC_BBQ 25 RX1900B 26 RX1900 27 RX1800B 28 RX1800 29 RX900B 30 RX900 31 RX850B 32 RX850 Description Reference Oscillator Supply (IP) AD6548 Crystal Freq control (IP) AD6549: Spare Pin Crystal Connection Crystal Connection Reference Frequency Output Q baseband input/output Q baseband input/output Baseband Q supply (IP) PCS 1900 LNA input PCS 1900 LNA input DCS 1800 LNA input DCS 1800 LNA input E-GSM LNA input E-GSM LNA input GSM 850 LNA input GSM 850 LNA input Table 1 AD6548/9 Pin Descriptions LGE Internal Use Only - 18 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 18 -
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