COMTECH TECHNOLOGY CO., LTD.
FM2400RTIM8B
Oct. 3, 2000
4
Address
1
1
0
0
0
MA1 MA0 0
A
BYTE 1
Programmable Divider 0
214
213
212
211
210
29
28
A
BYTE 2
Programmable Divider 27
26
25
24
23
22
21
20
A
BYTE 3
Charge Pump and
1
CP
T1
T0
1
1
1
OS
A
BYTE 4
Test Bits
I/O Port Control Bits
P7
P6
P5
P4
P3
P2
P1
P0
A
BYTE 5
7-1 Signal Level Out Voltage
7-2 IIC Bus
1) SDA, SCL Input Voltage
2) Address
3) SDA, SCL
Input Impedance
4) Date Format
under standard test condition
Condition
Min.
Typ.
Max.
Note
High Voltage
3
5
V
Low Voltage
0
1.5
V
C2 (on write data format)
SDA/SCL are in the high impedance and there should be no reliablity
problem with 5V continually on the SDA/SCL if power supply is switched
off.
MSB
LSB
table 2 read data format
A: acknowledge bit
MA1, MA0: voltage address bits
CP: charge pomp current select
T1: test mode selection
T0: charge pump disable
OS: varactor drive output disable switch
P7, P6, P5, P4, P3, P2, P1, P0: control output states
POR: power on reset indicator
I2, I1, I0: digital information from ports P7, P5 and P4
A2, A1, A0: 5 level ADC data from P6
table 1 write data format (MSB is transmitted first)
Address
1
1
0
0
0
MA1 MA0
1
A
BYTE1
Status Byte
FOR FL
I2
I1
I0
A2
A1
A0
A
BYTE 2
4
3
2
1
-30
-45
-60 -80 input level(dBm)
(V)
Signal Level Out