SAA1575HL Datasheet, PDF (4/56 Pages) NXP Semiconductors – Global Positioning System GPS baseband processor

Philips Semiconductors
Global Positioning System (GPS)
baseband processor
Product specification
SAA1575HL
The GPS firmware is located in off-chip program memory. It processes the GPS signals from up to 8 satellites and
generates GPS information that can be output to the host processor through one of the two serial ports. Much of
hardware configuration of the SAA1575HL can be controlled by the firmware and so details such as the external bus
timing may change between firmware revisions. For the purpose of this document, the standard Philips firmware has
been assumed (release HD00).
3 QUICK REFERENCE DATA
SYMBOL
V_CC(core)
V_CC(P)
V_CC(R)
V_CC(B)
I_CC(core)
PARAMETER
core supply voltage
peripheral supply voltage
real-time clock core supply voltage
backup peripheral supply voltage
core supply current
I_CC(R)
I_CC(B)
real-time clock core supply current
backup peripheral supply current
I_CC(P)
f_osc
T_amb
peripheral supply current
oscillator frequency
ambient temperature
CONDITIONS
normal mode
sleep mode
f_RTC = 32.768 kHz
normal mode; dependent on
load
sleep mode
normal mode
sleep mode
MIN.
2.7
2.7
2.4
2.7
−
−
−
−
−
−
−
26
−40
TYP.
3.3
5.0
3.3
5.0
35
15
10
5
1
20
−
30
+25
MAX. UNIT
3.6 V
5.5 V
3.6 V
5.5 V
−
mA
−
mA
30 µA
−
mA
−
µA
−
mA
1
mA
32 MHz
+85 °C
4 ORDERING INFORMATION
TYPE
NUMBER
SAA1575HL
NAME
LQFP100
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 100 leads; body 14 × 14 × 1.4 mm
VERSION
SOT407-1
1999 Jun 04
4