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SA9024 Datasheet(PDF) 2 Page - NXP Semiconductors

Part # SA9024
Description  900 MHz transmit modulator and 1.3 GHz fractional-N synthesizer
PDF  23 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SA9024 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Objective specification
SA9024
900 MHz transmit modulator and 1.3 GHz
fractional–N synthesizer
2
1997 Aug 01
DESCRIPTION
This specification defines the requirements for a transmitter
modulator and fractional–N synthesizer IC to be used in cellular
telephones which employ the North American Dual Mode Cellular
System (IS–136).
FEATURES
• Low current from 3.75V supply
• Low phase noise
• Main loop with internal charge pump and fractional compensation
• 3–line serial interface bus
• Power down for the synthesizers
• Speedup mode for faster switching
APPLICATIONS
• Cellular phones
• Portable battery–powered radio equipment.
GENERAL DESCRIPTION
The SA9024 BICMOS device integrates:
• Main channel synthesizer
• Auxiliary synthesizer
• Transmit offset synthesizer and oscillator
• I/Q modulator
• Power control
• Reference and clock buffers
• Control logic for programming and power down modes
PIN CONFIGURATION
SR01536
45
46
47
48
1
2
3
4
5
6
7
13 14
15 16 17 18 19
25
26
27
28
29
30
42
43
44
31
32
33
34
35
36
20
21 22 23 24
8
9
10
11
12
39
40
41
37
38
PHP
V
RX
GND
GND
Ipeak
TANK1
XTAL
TX
DATA
CLOCK
LOCK
STROBE
GND
I
Q
CC
V CC
V CC
SA9024
LO1
RXLO2
TXLO1
TXLO2
PHS out
EN
2
Q
I
Figure 1.
Pin Configuration
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VCC
Supply voltage
VCC
3.6
3.75
3.9
V
ICC
Supply current
–
TBD
–
mA
ICC_save
Total supply current in power–down
mode
–
TBD
–
mA
fVCO
Input frequency
800
–
1300
MHz
fAUX
Input frequency
10
–
500
MHz
fXTAL
Crystal reference input frequency
10
–
40
MHz
fPC
Maximum phase comparator frequency
Main and Aux loops
–
–
5
MHz
Tamb
Operating ambient temperature
–40
–
+85
°C
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
SA9024
LQFP48
Plastic low profile quad flat package; 48 leads; body 7x7x1.4 mm
SOT313-2



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