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QP1S Schematic ( PDF Datasheet ) - Mitel Networks Corporation

Teilenummer QP1S
Beschreibung CDMA/AMPS dual Band IF Receiver for Digital Phones
Hersteller Mitel Networks Corporation
Logo Mitel Networks Corporation Logo 




Gesamt 9 Seiten
QP1S Datasheet, Funktion
Preliminary Information
SATURN
SATURN
CDMA/AMPS dual Band IF Receiver for Digital Phones
Preliminary Information
DS4721
Issue 4.2
April 1999
Features
q Selectable IF input buffers with characteristic
impedance suitable for interface to IF CDMA and
FM SAW filter outputs
Odering Information
SATURN/KG/QP1S
SATURN/KG/QP1T
q AGC amplifiers with 90dB of variable gain, fully
compensated for temperature variation
q IQ demodulator with accurately defined output DC
level and low DC offsets
q LO operating at twice frequency with high accuracy
quadrature generation
q Sophisticated power management control operation
q Overload indicator
Description
The SATURN circuit is designed for use in dual band dual
mode mobile phones (CDMA/AMPS). The circuit is
designed to be compataible with digital baseband and
mixed signal circuit chips from Mitel (Planet Chip-set)
and Qualcomm (MSM2 and BBA). A wideband AGC
amplifier allows the input of CDMA or AMPS signal paths
with a range power management control options.
FM IFIN
CDMA IFIN
AGC
STARTUP
ENABLE
MODE CDM
Gain
Control
Temperature
Comp.
Mode
Control
I OUT
Overload
Indicator
Q OU T
DLL BAND 1900
PRESCALER
VHF VCC
VHF VEE
Figure 1 Block diagram
1






QP1S Datasheet, Funktion
SATURN
Preliminary Information
Electrical Characteristics (AC specifications) Continued
Tamb= 30°C to +70°C, Vcc = +2.7 to +3.6. These characteristics are guaranteed by either production test or design.
They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Frequency = 85.38MHz
Characteristic
FM AGC
Max Voltage Gain to demodulator
output
Min Voltage Gain to demodulator
output
Max Voltage Gain to OF buffer output
Min voltage Gain to IF buffer output
AGC control Max
AGC control Min
Gain slope
Gain slope linearity
Gain temperature stability
NFGainmax
Input V1dB
Gainmin
IIP3
Gainmin
Input Impedance
IF Frequency
VHF Local Oscillator
Quaderature generation
LO input Frequency
VCO Phase noise
VCO Noise floor
VCO buffer output
VCO buffer output impedance
Value
Min Typ Max
52 54
-49 -47
54 59
-48 -42
2.6
0.1
40
6 80
-2 2
6
98 105
103 113
850
50 250
Units
Conditions
dB To demodulator outputs
dB To demodulator
dB
dB
V
V
dB/V
dB/V
dB
dB
dBµV
dBµV
MHz
IF AGC only mode
IF AGC only mode
Gain = Gain max
Gain = Gain min
Over gain control range
For any gain setting
850source
Minimum gain
Minimum gain
With addition of external
resistor across IF inputs
100 500 MHz
-100 -98
dBc/Hz @30kHz, Hiband mode
Minimum tank Q=15 Note 1
-130 dBc/Hz @>3MHz, Note 1
350 mV pk-pk single ended
100 Differential
Note 1: Phase noise is specified at the LO input to the mixers.
6

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