參數(shù)資料
型號(hào)： UAA3545HL
廠商： NXP SEMICONDUCTORS
元件分類： 無(wú)繩電話/電話
英文描述： Fully integrated DECT transceiver
中文描述： TELECOM, CORDLESS, RF AND BASEBAND CIRCUIT, PQFP32
封裝： 5 X 5 X 1.40 MM, PLASTIC, LQFP-32
文件頁(yè)數(shù)： 2/28頁(yè)
文件大小： 116K
代理商： UAA3545HL
2001 Sep 06
2
Philips Semiconductors
Product specification
Fully integrated DECT transceiver
UAA3545
FEATURES
Economical solution for a radio in DECT cordless
telephones
Integrated low phase noise VCO with no production
tuning required
Fully integrated receiver with high sensitivity
Dedicated DECT PLL synthesizer
3 dBm output preamplifier with an integrated switch
3-line serial interface bus
Low current consumption from a 3.2 V supply
Compatible with Philips Semiconductors baseband
chips (PCD509xx and PCD80xxx)
Reduced number of control signals.
APPLICATIONS
DECT cordless telephones: 1880 to 1930 MHz.
GENERAL DESCRIPTION
The UAA3545 BiCMOS device is a low power, highly
integrated circuit, for Digital Enhanced Cordless
Telecommunication (DECT) applications.
It features a fully integrated receiver, from antenna filter
output to the demodulated data output, a fully integrated
VCO, a synthesizer to implement a phase-locked loop for
DECT channel frequencies and a TX preamplifier to drive
the external transmit power amplifier (CGY20xx series or
UAA359x series of Philips integrated circuits).
The synthesizer’s main divider is driven by the prescaler
output in the range of 1880 to 1930 MHz and is
programmed via a 3-wire serial bus. The reference divider
ratio is programmable to 4, 8, 12 or 16. Outputs of the
main and reference dividers drive a phase comparator
whereachargepumpproducesphaseerrorcurrentpulses
for integration in an external loop filter (only a passive loop
filter is necessary). The charge-pump current is set to
4 mA for fast switching.
The VCO is powered from an internally regulated voltage
source and includes integrated variable capacitance
diodesandintegratedcoils.Itstuningrangeisguaranteed.
The VCO and the synthesizer are switched-on one slot
before the active slot to lock the VCO to the required
channel frequency. Immediately before the active slot, the
synthesizer is switched-off to allow open loop modulation
of the VCO during transmission. When opening the loop,
frequency pulling (due to switching-off the synthesizer)
can be maintained within the DECT specification.
The device is designed to operate from a 3.2 V nominal
supply. Separate power and ground pins are provided for
thedifferentsectionsofthecircuit.Groundleadsshouldbe
short-circuited externally to prevent large currents flowing
across the die and causing damage. All V
CC
supplies
(V
CC(REG)
, V
CC(SYN)
, V
CC(RX)
and V
CC(TX)
) must be at the
same potential (V
CC
).
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
UAA3545HL
LQFP32
plastic low profile quad flat package; 32 leads; body 5
×
5
×
1.4 mm
SOT401-1
相關(guān)PDF資料
PDF描述
UAA3545 Fully integrated DECT transceiver
UAA3580 Wideband code division multiple access frequency division duplex zero IF receiver
UAA3580HN Wideband code division multiple access frequency division duplex zero IF receiver
UAA4000 8-bit MCU for automotive with 16 to 60 Kbyte Flash, ADC, CSS, 5 timers, SPI, SCI, I2C interface
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UAA3546 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single Chip DECT Transceiver
UAA3546HN/C3,118 制造商:NXP Semiconductors 功能描述:
UAA3580 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Wideband code division multiple access frequency division duplex zero IF receiver
UAA3580HN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Wideband code division multiple access frequency division duplex zero IF receiver
UAA3587 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Complete, single-package GSM/GPRS/EDGE RF transceiver
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