UAA3522 データシートの表示（PDF） - Philips Electronics
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UAA3522 Datasheet PDF : 28 Pages
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Table 4 Register bit allocation
X = don’t care; MSB = Most Significant Bit; LSB = Least Significant Bit.
DATA BITS
FIRST
BIT
13 12 11 10 9
8
7
6
5
4
3
2
1
0
X
X
X
X
X
X MSB
IF LO frequency divider ratio
LSB
MSB
RF LO frequency divider ratio
LSB
X
X
X
X
X
X LNA(1) X MSB AGC amplifier gain (RX mode)
LSB
see Table 5
X
X MSB Q output offset adjust LSB Q sign MSB I output offset adjust
LSB I sign(2)
(2)
X
X
X
X
X IF RD IF VCO 0
(3)
(4)
0 RF(5) X SYN ON RX ON TX ON
For test purposes only(6)
ADDRESS BITS
LAST
BIT
321
0
011
0
010
0
001
1
001
0
000
1
000
0
Notes
1. Bit LNA: 1 = LNA ON in RX mode; 0 = LNA OFF in RX mode.
2. Bits Q sign and I sign = polarity of offset at Q/I channel outputs: 0 = negative offset step (output A with respect to output B); 1 = positive offset step
(output A with respect to output B).
3. Bit IF RD: 0 = frequency dividers programmed for GSM applications; 1 = frequency dividers programmed for DCS applications.
4. Bit IF VCO: 0 = IF LO buffer ON (external IF LO source connected); 1 = IF VCO ON (external IF LO source not connected).
5. Bit RF: 1 = RF section ON when RX mode is activated; 0 = RF section OFF when RX mode is activated.
6. This address must not be used. Data bits to be defined.
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