2024年4月4日发(作者：祈晓夏)
元器件交易网
元器件交易网
Philips SemiconductorsProduct specification
2.5GHz low voltage fractional-N dual frequency
synthesizer
SA8026
GENERAL DESCRIPTION
The SA8026 BICMOS device integrates programmable dividers,
charge pumps and a phase comparator to implement a
LOCK
120
PON
phase-locked loop. The device is designed to operate from 3 NiCd
TEST
219STROBE
cells, in pocket phones, with low current and nominal 3 V supplies.
V
DD
318
DATA
The synthesizer operates at VCO input frequencies up to 2.5 GHz.
17
The synthesizer has fully programmable main, auxiliary and
GND
4
CLOCK
reference dividers. All divider ratios are supplied via a 3-wire serial
RFin+
516
REFin+
programming bus.
RFin–
615
REFin–
Separate power and ground pins are provided to the analog and
GND
CP
714
R
SET
digital circuits. The ground leads should be externally short-circuited
PHP
813
V
DDCP
to prevent large currents flowing across the die and thus causing
912
damage. V
PHI
AUXin
DDCP
must be greater than or equal to
V
DD
.
GND
CP
10
11
PHA
The charge pump current (gain) is set by an external resistance at
SR01649
R
SET
pin
.
Passive loop filters could be used; the charge pump
operates within a wide voltage compliance range to provide a wider
Figure Configuration
tuning range.
FEATURES
APPLICATIONS
•
Low phase noise
•
350 to 2500 MHz wireless equipment
•
Low power
•
Cellular phones (all standards)
•
Fully programmable main and auxiliary dividers
•
WLAN
•
Normal & Integral charge pumps outputs
•
Portable battery-powered radio equipment.
•
Fast Locking Adaptive mode design
•
Internal fractional spurious compensation
•
Hardware and software power down
•
Split supply for V
DD
and V
DDCP
QUICK REFERENCE DATA
V
DD
Supply voltage2.7–5.5V
V
DDCP
Analog supply voltageV
DDCP
w
V
DD
2.7–5.5V
I
DDCP
+I
DD
Total supply currentMain and Aux. on–1012mA
I
DDCP
+I
DD
Total supply current in power-down mode–1–µA
f
VCO
Input frequency350–2500MHz
f
AUX
Input frequency20–550MHz
f
REF
Crystal reference input frequency5–40MHz
f
PC
Maximum phase comparator frequency–4MHz
T
amb
Operating ambient temperature–40–+85°C
ORDERING INFORMATION
TYPETYPE NUMBERNUMBER
PACKAGE
NAMEDESCRIPTIONVERSION
SA8026DHTSSOP20Plastic thin shrink small outline package; 20 leads; body width 4.4 mmSOT360–1
1999 Nov 04
2
853–2141 22633
2024年4月4日发(作者：祈晓夏)
元器件交易网
元器件交易网
Philips SemiconductorsProduct specification
2.5GHz low voltage fractional-N dual frequency
synthesizer
SA8026
GENERAL DESCRIPTION
The SA8026 BICMOS device integrates programmable dividers,
charge pumps and a phase comparator to implement a
LOCK
120
PON
phase-locked loop. The device is designed to operate from 3 NiCd
TEST
219STROBE
cells, in pocket phones, with low current and nominal 3 V supplies.
V
DD
318
DATA
The synthesizer operates at VCO input frequencies up to 2.5 GHz.
17
The synthesizer has fully programmable main, auxiliary and
GND
4
CLOCK
reference dividers. All divider ratios are supplied via a 3-wire serial
RFin+
516
REFin+
programming bus.
RFin–
615
REFin–
Separate power and ground pins are provided to the analog and
GND
CP
714
R
SET
digital circuits. The ground leads should be externally short-circuited
PHP
813
V
DDCP
to prevent large currents flowing across the die and thus causing
912
damage. V
PHI
AUXin
DDCP
must be greater than or equal to
V
DD
.
GND
CP
10
11
PHA
The charge pump current (gain) is set by an external resistance at
SR01649
R
SET
pin
.
Passive loop filters could be used; the charge pump
operates within a wide voltage compliance range to provide a wider
Figure Configuration
tuning range.
FEATURES
APPLICATIONS
•
Low phase noise
•
350 to 2500 MHz wireless equipment
•
Low power
•
Cellular phones (all standards)
•
Fully programmable main and auxiliary dividers
•
WLAN
•
Normal & Integral charge pumps outputs
•
Portable battery-powered radio equipment.
•
Fast Locking Adaptive mode design
•
Internal fractional spurious compensation
•
Hardware and software power down
•
Split supply for V
DD
and V
DDCP
QUICK REFERENCE DATA
V
DD
Supply voltage2.7–5.5V
V
DDCP
Analog supply voltageV
DDCP
w
V
DD
2.7–5.5V
I
DDCP
+I
DD
Total supply currentMain and Aux. on–1012mA
I
DDCP
+I
DD
Total supply current in power-down mode–1–µA
f
VCO
Input frequency350–2500MHz
f
AUX
Input frequency20–550MHz
f
REF
Crystal reference input frequency5–40MHz
f
PC
Maximum phase comparator frequency–4MHz
T
amb
Operating ambient temperature–40–+85°C
ORDERING INFORMATION
TYPETYPE NUMBERNUMBER
PACKAGE
NAMEDESCRIPTIONVERSION
SA8026DHTSSOP20Plastic thin shrink small outline package; 20 leads; body width 4.4 mmSOT360–1
1999 Nov 04
2
853–2141 22633