GP2015
GPS Receiver RF Front End
Supersedes edition in August 1996 Global Positioning Products Handbook, HB4305-1.0
DS4374 - 2.4 October 1996
The GP2015 is a small format RF Front-end for Global
Positioning System (GPS) receivers. Equivalent in
performance to the GP2010 but in a TQFP package, this
product is suited for size-critical applications as the RF area
can be reduced by a factor of two to three using miniature
surface mount passive components The GP2015 is designed
to operate from either 3 or 5 Volt supplies.
The input to the device is the L1 (1575.42MHz) Coarse-
Acquisition (C/A) code Global Positioning signal from an
antenna (via a low-noise pre-amplifier). The output is 2-bit
quantised for subsequent signal processing in the digital
domain. The GP2015 contains an on-chip synthesiser, mixers,
AGC and a quantiser which provides Sign and Magnitude
digital outputs. A minimum of external components is required
to make a complete GPS front-end.
The device has been designed to operate with the GP2021
12-channel Global Positioning Correlator, and DW9255 SAW
filter, both also available from Mitel Semiconductor.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
36 35 34 33 32 31 30 29 28 27 26 25
37
38
39
40
41
42
43
44
45
46
47
48
24
23
22
21
20
19
18
17
16
15
14
13
GP2015
1 2 3 4 5 6 7 8 9 10 11 12
FP48
Name
Name
IF Output
PLL Filter 1
PLL Filter 2
V
EE
(OSC)
V
CC
(OSC)
V
EE
(OSC)
V
EE
(REG)
PRef
PReset
V
EE
(IO)
CLK
N/C
N/C
MAG
SIGN
OPCIK-
OPCIK+
V
DD
(IO)
PD
N
TEST
LD
V
EE
(DIG)
AGC -
AGC +
Pin
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
FEATURES
s
Ultra miniature TQFP package
s
Low Voltage Operation (3V - 5V)
s
Low Power - 200mW typ. (3V supply)
s
C/A Code Compatible
s
On-chip PLL Including Complete VCO
s
Triple Conversion Receiver
s
48-Lead Surface Mount Quad Flat-Pack Package
s
Sign and Magnitude Digital Outputs
s
Compatible with GP2021 CMOS Correlator
APPLICATIONS
s
C/A Code Global Positioning by Satellite Receivers
s
Time Standards
s
Navigation
s
Surveying
ORDERING INFORMATION
The GP2015 is available in 48 pin TQFP package to
Industrial (-40°C to +85°C) grade.
N/C
V
CC
(DIG)
REF 2
REF 1
V
CC
(RF)
V
EE
(RF)
V
EE
(RF)
RF Input
V
EE
(RF)
V
EE
(RF)
V
CC
(RF)
N/C
O/P 1-
O/P 1+
V
CC
(2)
I/P 2-
I/P 2+
V
EE
(IF)
V
EE
(IF)
O/P 2-
O/P 2+
V
CC
(3)
I/P 3-
I/P 3+
Fig. 1 Pin connections - top view
RELATED PRODUCTS AND PUBLICATIONS
Part
DW9255
GP2021
GP2010
GP2015
GPSBuilder-2
Description
Data
Reference
DS3861
DS4057
DS4056
AN4533
DS4004
DS4537
ORDERING CODE
GP2015 IG FP1R
Industrial - Plastic 48-pin TQFP
35.42MHz SAW Filter
Twelve-Channel Correlator
GPS receiver RF Front-end
Design with the GP2015
Twelve-Channel GPS receiver
development system
GPSBuilder-2.1 Twelve-Channel GPS development
system
MITEL [ MITEL NETWORKS CORPORATION ]
