參數(shù)資料
型號(hào)： SA7026DH
廠商： NXP SEMICONDUCTORS
元件分類： XO, clock
英文描述： 1.3GHz low voltage fractional-N dual frequency synthesizer
中文描述： PLL FREQUENCY SYNTHESIZER, 1300 MHz, PDSO20
封裝： 4.40 MM, PLASTIC, SOT-360-1, TSSOP-20
文件頁(yè)數(shù)： 2/18頁(yè)
文件大小： 299K
代理商： SA7026DH
Philips Semiconductors
Product specification
SA7026
1.3GHz low voltage fractional-N dual synthesizer
2
1999 Nov 04
853–2159 22635
GENERAL DESCRIPTION
The SA7026 BICMOS device integrates programmable dividers,
charge pumps and a phase comparator to implement a
phase-locked loop. The device is designed to operate from 3 NiCd
cells, in pocket phones, with low current and nominal 3 V supplies.
The synthesizer operates at VCO input frequencies up to 1.3 GHz.
The synthesizer has fully programmable main, auxiliary and
reference dividers. All divider ratios are supplied via a 3-wire serial
programming bus.
Separate power and ground pins are provided to the analog and
digital circuits. The ground leads should be externally short-circuited
to prevent large currents flowing across the die and thus causing
damage. V
DDCP
must be greater than or equal to
V
DD
.
The charge pump current (gain) is set by an external resistance at
R
SET
pin
.
Passive loop filters could be used; the charge pump
operates within a wide voltage compliance range to provide a wider
tuning range.
FEATURES
Low phase noise
Low power
Fully programmable main and auxiliary dividers
Normal & Integral charge pumps outputs
Fast Locking Adaptive mode design
Internal fractional spurious compensation
Hardware and software power down
Split supply for V
DD
and V
DDCP
SR01649
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
LOCK
TEST
V
DD
GND
RFin+
RFin–
GND
CP
PHP
PHI
GND
CP
PON
STROBE
DATA
CLOCK
REFin+
REFin–
R
SET
AUXin
V
DDCP
PHA
10
Figure 1.
Pin Configuration
APPLICATIONS
350 to 1300 MHz wireless equipment
Cellular phones (all standards)
WLAN
Portable battery-powered radio equipment.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
DD
Supply voltage
2.7
–
5.5
V
V
DDCP
Analog supply voltage
V
DDCP
V
DD
2.7
–
5.5
V
I
DDCP
+I
DD
Total supply current
Main and Aux. on
–
7.5
8.8
mA
I
DDCP
+I
DD
Total supply current in power-down mode
–
1
–
μ
A
f
VCO
Input frequency
350
–
1300
MHz
f
AUX
Input frequency
10
–
550
MHz
f
REF
Crystal reference input frequency
5
–
40
MHz
f
PC
Maximum phase comparator frequency
–
4
MHz
T
amb
Operating ambient temperature
–40
–
+85
°
C
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
SA7026DH
TSSOP20
Plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360–1
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