Fujitsu MB15C02 MB15C02

MB15C02

■BLOCK DIAGRAM

Control

Phase

comparator

OSCIN

OSCOUT

14-bit latch

Programmable

reference divider

Binary 14-bit

reference counter

Data 18-bit shift register

18-bit latch

Binary 6-bit

swallow

counter

Binary 12-bit

programma-

ble counter

fin

Clock

TEST

VSS

Prescaler Charge

pump

Intermittent

mode control

circuit

Control circuit

Lock detector

φP

φR

612

VDD

Output

control

circuit

Output

control

circuit

Crystal

oscillator

circuit

Contents

Main FUJITSU MICROELECTRONICS DATA SHEET DS04213483Ea ASSP Single Serial Input PLL Frequency Synthesizer On-Chip prescaler MB15C02 DESCRIPTION FEATURES MB15C02 PIN ASSIGNMENTS SSOP-20 pin SSOP-16 pin (FPT-20P-M03) PIN DESCRIPTIONS Page MB15C02 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS FUNCTION DESCRIPTIONS 1. Pulse Swallow Function 2. Circuit Description (1) Intermittent operation (2) Programmable divider (3) Programmable reference divider (4) Phase comparator Table. 1 Phase comparator inputs/output relationships (b) Charge pump (c) Phase comparator input/output waveforms Figure 1. Phase comparator input/output waveform Page 4. Setting the Divide Ratio (1) Serial data format Figure 3. Serial data format Figure 3.1. Divide ratio for the programmable divider Figure 3.2. Divide ratio for the programmable reference divider (2) The flow of serial data Figure 4. The flow of serial data (3) Setting the divide ratio for the programmable divider (4) Setting the divide ratio for the programmable reference divider (5) Setting data input timing Figure 5. Serial data input timing MB15C02 Figure 6. Inputting serial data(Setting divisors) TYPICAL CHARACTERISTICS 1. fin Input Sensitivity 2. OSC 3. fin Power Supply Voltage 4. OSC 5. IDD Power Supply Current 6. Do (Charge Pump) Power Supply Voltage 7. Spectrum Wave Form Test circuit 8. Lock Up Time USAGE PRECAUTIONS ORDERING INFORMATION PACKAGE DIMENSIONS 16 pins, Plastic SSOP (Continued) * Dimensions in mm (inches) 1994 FUJITSU LIMITED F20012S-2C-4 (FPT-20P-M03) Page Page Page FUJITSU MICROELECTRONICS LIMITED