Nokia NSB-9 Service Manual page 272

Customer Care Solutions
RF and BB
G_RF_BB(31:0)
RFCONV(9:0)
GENIO(31:0)
RFAUXCONV(2:0)
RFICCTRL(2:0)
PUSL(3:0)
RFAUX(1:0)
SLOWAD(6:0)
LPRFCLK
RFCLK
RFCLKGND
GND
RFCONV_ANA(16:0)
RFCONV_DIGI(16:0)
Issue 1 03/03
Schematics / Layouts
0
1
2
3
4
5
6
7
8
9
R421
R423
10k
C421
10k
100p
C422
100p
GND GND
13
5
6
7
8
9
10
11
12
0
1
2
0
1
2
0
1
2
5
6
C420
R420
100R
100p
IF IPA1 AND IPA2 ARE USED BY RF THE TOLERANCE HAS TO BE 1% (0402, 1430873)
Copyright Nokia 2002. All rights reserved.
RFCONV/RFCONV_O: 0: RXIINP
1: RXIINN
2: RXQINP
3: RXQINN
0
4: TXIOUTP
1
5: TXIOUTN
2
6: TXQOUTP
3
7: TXQOUTN
4
8: VREFRF02
5
9: VREFRF01
6
7
8
9
GENIO/GENIO_O
13
5: TXP
5
6: RESET
6
7: TXA
7 8: TXL1
8 9: TXL2
9 10: EXTANT
10 11: BANDSEL
11 12: ADATA
12 13: RXGAIN
RFAUXCONV/RFAUXCONV_O 0: TXC
0
1: TXPWRDET
1
2: AFC
2
0
RFICCNTRL/RFICCNTR_O 0: RFBUSCLK
1
1: RFBUSDA
2
2: RFBUSEN1
0
1
2
5
SLOWAD/SLOWAD_O 5: VCXOTEMP
6
6: PATEMP
ISET
CONSTANT CURRENT SET RESISTOR
FOR RF POWER AMPLIFIER
(see UEM sheet)
R422
27k
GND
RFCONV_O(9:0)
GENIO_O(31:0)
RFAUXCONV_O(2:0)
RFICCTRL_O(2:0)
PUSL_O(3:0)
RFAUX_O(1:0)
SLOWAD_O(6:0)
LPRFCLK_I
RFCLK_I
RFCLKGND_I
RFCONV_ANA_O(16:0)
RFCONV_DIGI_O(16:0)
NSB-9
Page A-20