uaa2062 NXP Semiconductors, uaa2062 Datasheet - Page 20

• Manufacturer Part Number: uaa2062
• Description: Analog Cordless Telephone Ic
• Manufacturer: NXP Semiconductors

Philips Semiconductors
RX
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
PA
The power amplifier has 2 bits to select the output voltage level. The power-up default value is step 3 (11). V
Table 15 PA output level selection
2000 Aug 10
Analog cordless telephone IC
OUTPUT LEVEL SELECTION
AND
BIT 3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
TX VCO
BIT 1
0
0
1
1
CAPACITOR SELECTION
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
BIT 0
20
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
STEP
STEP
0
1
2
3
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
CAPACITOR
VALUE (pF)
INTERNAL
RX VCO
PA OUTPUT POWER (dB)
10.8
11.7
12.6
13.5
0.9
1.8
2.7
3.6
4.5
5.4
6.3
7.2
8.1
9.0
9.9
0
Product specification
UAA2062
+2
0
CAPACITOR
4
2
VALUE (pF)
INTERNAL
TX VCO
CC
0.45
1.35
2.25
3.15
4.05
4.95
5.85
6.75
0.9
1.8
2.7
3.6
4.5
5.4
6.3
0
= 3.6 V.