MRFIC1505
SEMICONDUCTOR
TECHNICAL DATA
1.575 GHz GPS
DOWNCONVERTER
PLASTIC PACKAGE
CASE 932
(LQFP–48)
48 1
Order this document by MRFIC1505/D
1
MOTOROLA RF/IF DEVICE DATA
Integrated GPS Downconverter
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.
ORDERING INFORMATION
Device Operating
Temperature Range Package
MRFIC1505R2 TA = –40 to 85°C LQFP–48
Motorola, Inc. 2000 Rev 0
44
45
46
47
48
Vreg VCO
Tank
Tank
LNA In Gnd
Gnd
IF 2
Gnd
Limiter In B
Limiter Gnd
Limiter VCC
37
38
39
40
41
42
43
LNA Gnd
Gnd
VCO Gnd
Pin Connections and Functional Block Diagram
LNA Gnd VCC Mixer 2
17
16
15
14
13
24
23
22
21
20
19
18
LPF Neg
VCO VCC
LPF Out
LPF Pos
Limiter Bias
Enable
Limiter Out
Limiter In A
36 35 34 33 32 31 30 29 28 27 26 25
12345678 9 10 11 12
LNA
VCC LNA
Gnd LNA
Out LNA
Gnd Gnd Mixer 1
Gnd Mixer 1
In VCC
Mixer 1 IF 1 VGA
Level VGA
In B VGA
In A
Gnd VCC
PLL Gnd Temp
Sense VCC Crystal Gnd Gnd Crystal
Osc Vreg
Out Clk Gnd
VCO
25
4
PD
Temp
Sense Vreg Ref
Osc
LNA
MRFIC1505
2MOTOROLA RF/IF DEVICE DATA
MAXIMUM RATINGS
Rating Symbol Value Unit
DC Supply Voltage VDD 5.0 Vdc
DC Supply Current IDD 60 mA
Operating Ambient Temperature TA–40 to 85 °C
Storage Temperature Range Tstg –65 to 150 °C
Lead Soldering Temperature Range (10 seconds) – 260 °C
NOTE: Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the limits in the Electrical Characteristics tables.
ELECTRICAL CHARACTERISTICS (VCC = 2.7 to 3.3 V; TA = –40 to 85°C; Enable = 2.7 V unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
TOTAL DEVICE
Supply Voltage VCC 2.7 3.0 3.3 V
Supply Current
(TA = 25°C, VCC = 2.7 V, Enable = 2.7 V) ICC – 28 36 mA
Supply Current
(TA = 25°C, VCC = 2.7 V, Enable = 0 V) ICC – 2.0 4.0 mA
RF AMPLIFIER
RF Input Frequency fin – 1575.42 – MHz
Input Impedance Zin – 50 – Ω
Input VSWR VSWRin – 2.0 – –
Gain G 13 15 – dB
Noise Figure NF – 2.0 – dB
1.0 dB Compression (Measured at Output) P1dB – 1.0 – dBm
FIRST MIXER
Input Frequency fin – 1575.42 – MHz
Gain G 10 14 – dB
Noise Figure NF – 13 – dB
1.0 dB Compression (Measured at Output) P1dB – –13 – dBm
First Local Oscillator Frequency fLO1 – 1636.8 – MHz
First Intermediate Frequency fIF1 – 61.38 – MHz
LO Leakage at IF Port – – –40 – dBm
LO Leakage at RF Port – – –50 – dBm
Output Impedance Zout – 50 – Ω
FIRST IF AMPLIFIER and SECOND MIXER
Input Frequency fin – 61.38 – MHz
Imput Impedance Zin – 230 – Ω
Output Impedance Zout – 50 – Ω
Second Local Oscillator Frequency fLO2 – 65.47 – MHz
Second Intermediate Frequency fIF2 – 4.092 – MHz
LO Leakage at IF Port – – –40 – dBm
Gain G 40 43 – dB
Cascaded Noise Figure NF – 9.3 – dB
1.0 dB Compression Point (Measured at Output) P1dB – –13 – dBm
MRFIC1505
3
MOTOROLA RF/IF DEVICE DATA
ELECTRICAL CHARACTERISTICS — continued (VCC = 2.7 to 3.3 V; TA = –40 to 85°C; Enable = 2.7 V unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
LIMITING AMPLIFIER
Second Intermediate Frequency fIF2 – 4.092 – MHz
Input Signal Level – 4.0 11 31 mV
Output Voltage Swing (Into 10 pf
ø
100 kΩ) Vout 800 – – mVpp
DC Output Level – – 1.4 – V
Gain G – 50 – dB
REFERENCE OSCILLATOR
Reference Frequency fr– 16.368 – MHz
Reference Frequency Input Level (Crystal Output Pin) – – 500 – mVpp
Reference Oscillator Output Voltage Level (Into 15 pF || 10 kΩ) – 750 – – mVpp
Reference Clock Input Drive Level – 400 800 1500 mVpp
PLL
First Local Oscillator Frequency fLO1 – 1636.8 – MHz
Second Local Oscillator Frequency fLO2 – 65.47 – MHz
VCO C/N (at 10 kHz Offset) – – –80 – dBc/Hz
VCO Gain (TBD Varactor) – – 20 – MHz/V
ENABLE
Enable Active Level – 0.8
VCC VCC – V
Disable Active Level – – 0 0.2
VCC V
VOLTAGE REGULATOR
Regulator Output Voltage
(VCC = 2.7 to 3.3 V, Iout = 3.0 mA) Vo2.1 2.3 2.5 V
TEMPERATURE SENSE SPECS
Temperature Sensor Output Voltage @ 25°C – 1.2 1.28 1.375 V
Temperature Sensor Slope over Temperature – – 5.0 – mV/°C
MRFIC1505
4MOTOROLA RF/IF DEVICE DATA
44
45
46
47
48
37
38
39
40
41
42
43
17
16
15
14
13
24
23
22
21
20
19
18
36 35 34 33 32 31 30 29 28 27 26 25
12345678 9 10 11 12
VCO
25
4
PD
Temp
Sense Vreg Ref
Osc
LNA
AGC
Figure 1. Applications Schematic (1636.8 MHz LO)
C1, C2 220 pF
C3, C4 1.7 pF
C6 10 pF
C7, C14, C18, C20, C22, C24, C34 0.01 µF
C8, C15, C19, C21, C23, C25, C27 1000 pF
C9 1.0 µF
C10, C11, C12 1.0 npF
C13 2.7 nF
C16, C17 27 pF
C26 470 pF
C28 0.6 pF
C29, C30 91 pF
C32, C33 1.0 nF
L1 10 nH
L2 3.9 nH
L3, L5 82 nH
L4 0.62 µH
L6 TBD
R1, R2, R4 10 k
R3 2 k
R6 1.2 k
R8 5.0 k
C7
C8
RF
Input
C6
C4
C3
L1
R4
R3
VCC
C24 C25
R2
C2
R1
C1
VCC
Temp
Sense
C19 C18 Crystal
C16 C14 C15 Clock
Enable
Limiter Out
C13 C12
R8
C10 C11
C22 C23
C20 C21
VCC
VCC
C9
C30
L5L3
L4
C29
VCC
R6
L2
C28 C26 C27
To IF Filter
From IF Filter
C17
L6
C34
C32 C33
NOTES: 1.R8 must be set to match your 2nd IF filter impedance.
2.Layout of capacitors C10, C1 1, C12 is critical for stability of Limiter.
MRFIC1505
5
MOTOROLA RF/IF DEVICE DATA
OUTLINE DIMENSIONS
PLASTIC PACKAGE
CASE 932–03
(LQFP–48)
ISSUE F
ÇÇÇÇ
ÇÇÇÇ
ÇÇÇÇ
ÉÉÉ
ÉÉÉ
ÉÉÉ
A
A1
Z
0.200 AB T–U
4X
Z0.200 AC T–U
4X
B
B1
1
12
13 24
25
36
37
48
S1
S
V
V1
P
AE AE
T, U, Z
DETAIL Y
DETAIL Y
BASE METAL
NJ
F
D
T–U
M
0.080 ZAC
SECTION AE–AE
AD
G0.080 AC
M
_
TOP & BOTTOM
L
_
W
K
AA
E
C
H
0.250
R
9
DETAIL AD
NOTES:
1 DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2 CONTROLLING DIMENSION: MILLIMETER.
3 DATUM PLANE AB IS LOCATED AT BOTTOM OF
LEAD AND IS COINCIDENT WITH THE LEAD
WHERE THE LEAD EXITS THE PLASTIC BODY AT
THE BOTTOM OF THE PARTING LINE.
4 DATUMS T, U, AND Z TO BE DETERMINED AT
DATUM PLANE AB.
5 DIMENSIONS S AND V TO BE DETERMINED AT
SEATING PLANE AC.
6 DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS
0.250 PER SIDE. DIMENSIONS A AND B DO
INCLUDE MOLD MISMATCH AND ARE
DETERMINED AT DATUM PLANE AB.
7 DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. DAMBAR PROTRUSION SHALL
NOT CAUSE THE D DIMENSION TO EXCEED
0.350.
8 MINIMUM SOLDER PLATE THICKNESS SHALL BE
0.0076.
9 EXACT SHAPE OF EACH CORNER IS OPTIONAL.
TU
Z
AB
AC
GAUGE PLANE
DIM
AMIN MAX
7.000 BSC
MILLIMETERS
A1 3.500 BSC
B7.000 BSC
B1 3.500 BSC
C1.400 1.600
D0.170 0.270
E1.350 1.450
F0.170 0.230
G0.500 BSC
H0.050 0.150
J0.090 0.200
K0.500 0.700
M12 REF
N0.090 0.160
P0.250 BSC
L0 7
R0.150 0.250
S9.000 BSC
S1 4.500 BSC
V9.000 BSC
V1 4.500 BSC
W0.200 REF
AA 1.000 REF
_
__
MRFIC1505
6MOTOROLA RF/IF DEVICE DATA
NOTES
MRFIC1505
7
MOTOROLA RF/IF DEVICE DATA
NOTES
MRFIC1505
8MOTOROLA RF/IF DEVICE DATA
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or
guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the
application or use of any product or circuit, and specifically disclaims any and all liability , including without limitation consequential or incidental
damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application
by customer’ s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are
not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where
personal injury or death may occur . Should Buyer purchase or use Motorola products for any such unintended or unauthorized application,
Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs,
damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated
with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the
part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3–20–1,
P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 Minam i–Azabu. Minato–ku, Tokyo 106–8573 Japan. 81–3–3440–3569
T echnical Information Center: 1–800–521–6274 ASIA/PACIFI C: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre,
2, Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
852–26668334
HOME PAGE: http://www .motorola.com/semiconductors/
MRFIC1505/D
◊
