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PDF UAA3515A Data sheet ( Hoja de datos )
| Número de pieza | UAA3515A | |
| Descripción | 900 MHz analog cordless telephone IC | |
| Fabricantes | Philips | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
UAA3515A
900 MHz analog cordless
telephone IC
Product specification
File under Integrated Circuits, IC17
2001 Dec 12
1 page  
Philips Semiconductors
900 MHz analog cordless telephone IC
Product specification
UAA3515A
6 PINNING
SYMBOL
MIXGND
RFIX
RFIY
LNAGND
RXLF
RXPD
RSSI
VREG
DGND
VCC(CP)
CPGND
VCC(PS)
TXPD
TXLF
PAGND1
PAO
PAGND2
MODI
MODO
VTXGND
VCC(VTX)
TXLOX
TXLOY
VCC(ATX)
CCAP
TXO
MICI
MICO
CMPI
VB
ATXGND
XTALI
XTALO
CDLBD
CLKOUT
EN
CLK
DATA
2001 Dec 12
PIN DESCRIPTION
1 mixer ground
2 LNA voltage (X) input
3 LNA voltage (Y) input
4 LNA ground
5 RX PLL filter output
6 RX phase detector voltage output
7 RSSI output
8 pin for internal voltage regulator
9 digital ground
10 internal voltage doubler supply voltage (or positive supply voltage input) for
charge pumps
11 charge pump ground
12 prescaler positive supply voltage input
13 TX phase detector voltage input
14 TX PLL filter output
15 power amplifier ground 1
16 power amplifier output
17 power amplifier ground 2
18 summing amplifier input
19 summing amplifier output
20 transmitter VCO ground
21 transmitter VCO positive supply voltage input
22 transmitter VCO voltage (X) to external inductor
23 transmitter VCO voltage (Y) to external inductor
24 transmitter audio positive supply voltage input
25 external capacitor for compressor
26 audio transmitter output
27 microphone amplifier input
28 microphone amplifier output
29 compressor input
30 reference voltage
31 transmitter audio ground
32 crystal input
33 crystal output
34 CD or LBD open collector output (out-of-lock synthesizer receiver and/or
transmitter in test mode)
35 clock output (CMOS levels)
36 enable input for serial interface
37 clock input for serial interface
38 data input for serial interface
5
5 Page 
Philips Semiconductors
900 MHz analog cordless telephone IC
Product specification
UAA3515A
7.2.1 DATA COMPARATOR
The data comparator is an inverting hysteresis
comparator. An external bandpass filter is connected
between pins DETO and DATI (AC-coupled). The
open-collector output is current limited to control the output
signal slew rate. An external resistor of 180 kΩ should be
connected between pin DATO and VCC. An external
capacitor in parallel with this resistor will reduce the slew
rate.
7.3 Transmitter
The transmitter architecture is of the direct modulation
type. The transmit VCO can be frequency modulated by
speech or data (see Fig.4). An amplifier sums the
modulating signal with the data TX signal before the VCO.
Frequency control is affected by integrated variable
capacitance diodes. To obtain the correct frequency,
external inductors in series with the bonding wires and
leadframe are required. The power amplifier is capable of
driving a 50 Ω load. The level of the output signal PAO is
programmed with two bits via the serial bus interface.
handbook, full pagewidth
VCC
LP
CS
PAO 16
TXPD 13
TXLF 14
VBmod
XTAL
DUAL PLL
FREQUENCY
SYNTHESIZER
SUMMING
AMPLIFIER
UAA3515A
TX VCO
18
MODI
VB
19
MODO
TX
VOLTAGE
REGULATOR
21 22
VCC(VTX) TXLOX
23 26
TXLOY TXO
Data TX
Fig.4 Transmitter block diagram.
FCA296
2001 Dec 12
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet UAA3515A.PDF ] | |
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