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PDF UAA2062 Data sheet ( Hoja de datos )
| Número de pieza | UAA2062 | |
| Descripción | Analog cordless telephone IC | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
UAA2062
Analog cordless telephone IC
Product specification
File under Integrated Circuits, IC17
2000 Aug 10
1 page  
Philips Semiconductors
Analog cordless telephone IC
Product specification
UAA2062
handbook, halfpage
ECAP 1
TXPD 2
48 Vref(PLL)
47 RXPD
TXLF 3
46 PLLGND
MODO 4
45 LO1O
MODI 5
44 LO1I
TXO 6
43 RXLF
PAO 7
42 RFI
TXGND 8
LO3I 9
41 VCC(LNA)
40 BPFI
VREFTX 10
CCAP 11
39 MX1O
38 RFGND
CMPI 12
MICO 13
37 MX2O
UAA2062
36 MX2I
MICI 14
35 RSSI
VCC(AUTX) 15
VB 16
CDBDO 17
34 LIMI
33 VCC(RF)
32 PLLO
EN 18
31 DETO
DATA 19
30 RXI
CLK 20
29 DATI
DATO 21
CLKO 22
28 VCC(AU)
27 EARO
LO2O 23
26 EARI
LO2I 24
25 AUGND
FCA091
2000 Aug 10
Fig.2 Pin configuration.
5
5 Page 
Philips Semiconductors
Analog cordless telephone IC
Product specification
UAA2062
The TX baseband
This section covers the TX audio path from pins MICI to
TXO.
The microphone amplifier is an inverting operational
amplifier whose gain can be set by external resistors. The
input signal at pin MICI and the output signal at pin MOCO
are both AC-coupled. The non-inverting input is connected
to the internal reference voltage VB. External resistors are
used to set the gain and frequency response.
The TX baseband has a compressor with the
characteristic shown in Fig.9. The Automatic Level Control
(ALC) provides a ‘soft’ limit to the output signal swing as
the input voltage increases slowly (i.e. a sine wave is
maintained at the output). A hard limiter clamps the
compressor output voltage at 1.26 V (p-p). The ALC and
the hard limiter can be disabled via the microcontroller
interface. The hard limiter is followed by a mute circuit.
The TX gain is digitally programmable in 32 steps of
0.5 dB.
handbook, full pagewidth
MICI
14
MICO
13
microphone
amplifier
CCAP
11
ALC
CMPI
12
compressor
hard limiter
TX mute
TXO
6
FCA125
TX gain
Fig.8 TX baseband schematic diagram.
handbook, full pagewidTthXO
(dBV)
0
−10
− 20
− 30
− 40
− 60
VCMPI = −4 dBV; VTXO = −1.26 V(p-p)
(hard limiting signals)
VCMPI = −2.5 dBV
VTXO = −11.5 dBV
− 20
VCMPI = −16 dBV; VTXO = −13 dBV
−30 (slowly changing ALC signals)
−50 −40 −30 −20 −10
0
CMPI (dBV)
FCA126
Fig.9 Compressor characteristic.
2000 Aug 10
11
11 Page | ||
| Páginas | Total 40 Páginas | |
| PDF Descargar | [ Datasheet UAA2062.PDF ] | |
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