M64894GP データシートの表示（PDF） - Renesas Electronics
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M64894GP Datasheet PDF : 13 Pages
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M64894FP/GP
Data Cording Example
Write Mode Format Example
Byte
MSB
LSB Condition in Data Setting
Address Byte
Divider byte 1
1
1
0
0
0
1
1
0
1 ADS input VCC1
0
1
0
0
0
0
0
0
1 Dividing ratio N = 16544
Divider byte 2
1
0
1
0
0
0
0
0
1
Control byte 1
C.P.current 270µA
1
1
0
0
0
0
1
0
1
fREF division ratio 1/1024
Band SW byte
0
0
0
0
1
0
0
0
1 BS4 output ON
Note: fVCO = N 8 fREF = 16544 8 (4MHz/1024) = 517MHz
Read Mode Format Example
Byte
MSB
LSB Condition in Data Setting
Address byte
1
1
0
0
0
1
1
1
1
Status byte 1 input
1
1
1
1
1
1
1
1
1
0
Status byte 1 output
1
1
1
1
0
1
1
1 FL “1” output at locked ADC
input at open
Test Mode Data Set Up Method
Test Mode Bit Set Up
X
: Random, 0 or 1. normal “0”
MA1, MA0 : Programmable address bit
Address Input Voltage
MA1
0 to 0.1 ± VCC1
0
Always valid
0
0.4 ± VCC1 to 0.6*VCC1
1
0.9 ± VCC1 to VCC1
1
Note: N14 to N0: How to set dividing ratio of the programmable the divider
Dividing ratio N = N14 (214 = 16384) + +N0 (20 = 1)
Therefore, the range of division N is 1,024 to 32,768
Example) fVCO = fREF • 8 • N
= 3.90625 • 8 • N
= 31.25 • N (kHz)
CP: Setting Up The Charge Pump Current of The Phase Comparator
CP
Charge pump current
0
70 µA
1
270 µA
MA0
0
1
0
1
Mode
Test
Normal
Rev.2.00 Jun 14, 2006 page 8 of 12
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