UAA2062 Ver la hoja de datos (PDF) - Philips Electronics
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UAA2062 Datasheet PDF : 40 Pages
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Philips Semiconductors
Analog cordless telephone IC
Product specification
UAA2062
RX AND TX VCO CAPACITOR SELECTION
The RX VCO and the TX VCO have an external LC tank circuit. A programmable internal capacitor is integrated in
parallel with the external L and C in order to tune the VCO and to keep the PLL in lock for large frequency steps.
A parasitic capacitor has to be added to these values. The RX VCO capacitor value and the TX VCO capacitor value can
be programmed independently one from the other.
Table 14 RX and TX VCO capacitor selection
BIT 3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
BIT 2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
BIT 1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
BIT 0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
STEP
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
INTERNAL
RX VCO
CAPACITOR
VALUE (pF)
0
0.9
1.8
2.7
3.6
4.5
5.4
6.3
7.2
8.1
9.0
9.9
10.8
11.7
12.6
13.5
INTERNAL
TX VCO
CAPACITOR
VALUE (pF)
0
0.45
0.9
1.35
1.8
2.25
2.7
3.15
3.6
4.05
4.5
4.95
5.4
5.85
6.3
6.75
PA OUTPUT LEVEL SELECTION
The power amplifier has 2 bits to select the output voltage level. The power-up default value is step 3 (11). VCC = 3.6 V.
Table 15 PA output level selection
BIT 1
0
0
1
1
BIT 0
0
1
0
1
STEP
0
1
2
3
PA OUTPUT POWER (dB)
−4
−2
0
+2
2000 Aug 10
20
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