MRFIC1504 Datasheet, PDF (1/8 Pages) Motorola, Inc – INTERGRATED GPS DOWNCONVERTER

Freescale Semiconductor, Inc._{Order this document by MRFIC1504/D}
Integrated GPS Downconverter ^{ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005}
This integrated circuit is intended for GPS receiver applications. The dual
conversion design is implemented in Motorola’s low–cost,
high–performance MOSAIC 5™ silicon bipolar process and is packaged in a
low–cost surface mount LQFP–48 package. In addition to the mixers, a
VCO, PLL, Crystal Oscillator, A/D converter and a loop filter are integrated
on–chip. Output IF is nominally 4.1 MHz.
• 105 dB Typical Conversion Gain
• 2.7 V Operation
• 28 mA Typical Current Consumption
• Low–Cost, Low–Profile Plastic LQFP Package
MOSAIC 5 is a trademark of Motorola, Inc.
Device
MRFIC1504R2
ORDERING INFORMATION
Operating
Temperature Range
TA = –40 to 85°C
Package
LQFP–48
MRFIC1504
1.575 GHz GPS
DOWNCONVERTER
SEMICONDUCTOR
TECHNICAL DATA
48 1
PLASTIC PACKAGE
CASE 932
(LQFP–48)
Pin Connections and Functional Block Diagram
LNA LNA LNA LNA
Mixer 1 Mixer 1 VCC
VGA VGA VGA
VCC Gnd Out Gnd Gnd Gnd In Mixer 1 IF 1 Level In B In A
36 35 34 33 32 31 30 29 28 27 26 25
LNA In ³⁷
LNA
LNA Gnd ³⁸
24 Gnd
23 VCC Mixer 2
LNA Gnd ³⁹
22 Gnd
Vreg VCO 40
21 IF 2
Tank ⁴¹
Gnd ⁴²
25
4
20 Limiter VCC
19 Gnd
Tank 43
VCO
VCO Gnd ⁴⁴
18 Limiter Gnd
PD
17 Limiter In B
VCO VCC 45
16 Limiter In A
LPF Out 46
15 Limiter Bias
LPF Neg ₄₇
LPF Pos 48
Ref
Temp
Sense
Vreg
Osc
14 Limiter Out
13 Enable
1
2
3
4
5
6
7
8
9
10
11 12
Gnd VCC Gnd Temp VCC Crystal Gnd Gnd Crystal Vreg Clk Gnd
PLL
Sense
Osc Out
© Motorola, Inc. 2000
MOTOROLA RF/IF DEVICE DATA For More Information On This Product,
Go to: www.freescale.com
Rev 1
1