2000 Aug 10
2
Philips Semiconductors
Product specification
Analog cordless telephone IC
UAA2062
FEATURES
RF RX (double superheterodyne FM receiver)
Integrated Low Noise Amplifier (LNA) with
programmable gain and input impedance
1st mixer with external filter at 10.7 MHz
2nd mixer with external filter at 455 or 450 kHz
(depending on country application)
FM detector including a fully integrated IF limiter, a
wide-band PLL and a Received Signal Strength
Indicator (RSSI) output
Carrier Detector (CD) with programmable threshold.
RF TX
Buffer driving an internal Power Amplifier (PA) with
programmable gain
Narrow-band PLL including VCO
Data transmission summing operational amplifier.
Synthesizer
10.24 or 11.15 MHz crystal reference oscillator (LO2)
and reference frequency divider
Programmable TX VCO with phase detector and
frequency divider
Programmable RX VCO (LO1) with phase detector and
frequency divider
Programmable clock divider with output buffer to drive
the microcontroller.
Baseband RX section
Programmable RX gain
Expander
Fully integrated earpiece amplifier with fixed gain.
Baseband TX section
Microphone amplifier
Compressor
Programmable TX gain.
Microcontroller interface
3-wire serial interface.
Other features
Voltage regulator to supply internal PLLs and the
microcontroller
Programmable low-battery detector time multiplexed
with RSSI carrier detector.
APPLICATIONS
World-wide analog cordless telephone set (CT0).
GENERAL DESCRIPTION
The UAA2062 is a BiCMOS integrated circuit that
performs all functions from the antenna to the
microcontroller for reception and transmission for both the
base station and the handset in a cordless telephone.
This IC integrates most of the functions required for a
cordless telephone into a single integrated circuit. The
implemented programming enables the device to be used
for the CT0 standard in many countries. Additionally, the
implemented programming significantly reduces the
amount of external components, board space
requirements and external adjustments.
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
UAA2062TS
SSOP48
plastic shrink small outline package; 48 leads; body width 7.5 mm
SOT370-1
2000 Aug 10
4
Philips Semiconductors
Product specification
Analog cordless telephone IC
UAA2062
PINNING
SYMBOL
PIN
DESCRIPTION
ECAP
1
output pin for external capacitor
from expander
TXPD
2
phase detector output voltage for
TX PLL
TXLF
3
input from loop filter to TX VCO
MODO
4
summing amplifier output voltage
MODI
5
summing amplifier inverting input
TXO
6
TX baseband output voltage
PAO
7
power amplifier output
TXGND
8
ground for RF TX chain and PA
LO3I
9
TX VCO input
V
REFTX
10
output pin for decoupling
capacitor for regulated voltage for
TX VCO
CCAP
11
output pin for external capacitor
from compressor
CMPI
12
compressor input voltage
MICO
13
microphone amplifier output
voltage
MICI
14
microphone amplifier inverting
input
V
CC(AUTX)
15
supply voltage for TX audio
VB
16
internal voltage reference
CDBDO
17
multiplexed output from carrier
detector or low-battery detector
EN
18
enable signal for serial interface
DATA
19
data signal for serial interface
CLK
20
clock signal for serial interface
DATO
21
data comparator output
CLKO
22
output pin for external clock
LO2O
23
crystal oscillator output
LO2I
24
crystal oscillator input
AUGND
25
ground for audio part
EARI
26
earpiece amplifier inverting input
EARO
27
earpiece amplifier output voltage
V
CC(AU)
28
supply voltage for audio part
DATI
29
data comparator input
RXI
30
RX audio input voltage
DETO
31
amplifier FM PLL output voltage
PLLO
32
amplifier FM PLL inverting input
V
CC(RF)
33
supply voltage for RF RX
LIMI
34
limiter input voltage
RSSI
35
output pin for external capacitor
from RSSI
MX2I
36
2nd mixer input
MX2O
37
2nd mixer output
RFGND
38
ground for RF RX
MX1O
39
1st mixer output voltage
BPFI
40
LNA output for external LC
V
CC(LNA)
41
supply voltage for LNA
RFI
42
LNA input voltage
RXLF
43
input from loop filter to RX VCO
LO1I
44
input pin to connect the
external LC for RX VCO
LO1O
45
output pin to connect the
external LC for RX VCO
PLLGND
46
ground for digital part of the PLL
RXPD
47
phase detector output voltage for
RX PLL
V
ref(PLL)
48
output pin for decoupling
capacitor for regulated voltage for
internal PLLs and microcontroller
SYMBOL
PIN
DESCRIPTION
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