參數(shù)資料
型號: STB5610
廠商: 意法半導(dǎo)體
英文描述: GPS RF FRONT-END IC
中文描述: GPS射頻前端IC
文件頁數(shù): 6/11頁
文件大?。?/td> 158K
代理商: STB5610
STB5610
6/11
ELECTRICAL CHARACTERISTICS (Vcc = 3+/-10%, Tcase= 25
o
C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
SECOND LIMITING AMPLIFIER
G
Voltage Gain
30
dB
VCO (GPS LO frequency 1555MHz)
VCO
Phase noise
f = 1KHz, SSB (10KHz PLL
closed loop bandwith)
-60
dBc/Hz
OUTPUT BUFFER (square wave CMOS level)
V
OH
High output voltage
V
OL
Low output voltage
Vcc-0.4
Vcc
V
0
0+0.4
V
GC Pin (lna gain control pin)
Logic level
Value
Low
Max Gain
High
Min Gain
CE Pin (Total chip enable pin)
Logic level
Value
Low
Switch-off
High
Switch-on
CE2 Pin (Analog portion enable pin)
Logic level
Value
Low
Switch-off
High
Switch-on
ASout Pin (Antenna sensor pin)
*
Logic level
Value
Low**
Iant<10mA
Iant.>40mA
High**
10mA<Iant<40mA
The Asout pin output provides information on Antenna current consumption
INPUT CONTROL PINS TABLE
(The logic levels are TTL compatible)
* It is referred to external sensing resistor of 10 OHm
Application requiring higher or lower current threshold should adjust the resistor value appropiately
** The logic levels are referred to STB5610 Supply Voltage
FSELECT (Frequencies Selector Pin)
Logic level
Value
Low
GPS frequency
High
Galileo frequency
OUTPUT CONTROL PINS TABLE
PHASE LOCKED LOOP
XTAL
Reference crystal
16.368
MHz
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