1.1GHz-band PLL IC for Mobile Communications
Description
CXA1786N
1.
1GHz-band PLL IC for Mobile Communications For the availability of this product, please contact the sales office.
Descriptions The CXA1786N is a frequency synthesizer PLL IC developed for use in mobile communication systems.
This IC has low current consumption, small package and is suitable for portable sets of cellular telephone and others.
Features • Low current consumption Icc = 6.
0mA (typ.
) 0.
3mA (typ.
) in power saving mode • Maximum operating frequency 1.
1GHz guaranteed • Operating supply voltage range 2.
7 to 5.
5V • Ultra small 20-pin SSOP package • Two types of phase comparator output: For external charge pump φR φP Two internal charge pumps DO1 DO2 Applications 1.
1GHz-band mobile communication equipment such as cellular telephones 20 pin SSOP (Plastic)
Structure Bipolar silicon monolithic IC Absolute Maximum Ratings • Supply voltage Vcc • Operating temperature Topr • Storage temperature Tstg • Allowable power dissipation PD Operating Condition Supply voltage
7 –35 to +85 –65 to +150 300
V °C °C mW
Vcc
2.
7 to 5.
5
V
Block Diagram and Pin Configuration
OSCI 1 20 φR
NC
2
Phase Comparator
19
NC
OSCO
3
18
φP
Vp
4
Reference Programmable Counter 14bits
17
TEST
VCC
5
16
DO2
DO 1
6
Charge Pump 1
Charge Pump 2
15
FC
GND
7
14
LAT
LD
8 Pulse Swallow Counter 7bits Programmable Counter 11bits
13
DATA
NC
9 1-bit Latch 14-bit Latch 18-bit Shift Resister 1-bit Shift
Resister
12
PS
FIN
10
2-modulus prescaler 1 1 or 64/65 128/129 Pulse swallow programmable counter
11
CK
18-bit Latch
Sony reserves the right to change products and specifications without prior notice.
This information does not convey any license by any implication or otherwise under any patents or other right.
Application circuits shown, if any, are typical examples illustrating the operation of the devices.
Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E93929A8Y
CXA1786N
Pin Description Pin No.
1 Sym...
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