MICRF506BML Micrel Inc, MICRF506BML Datasheet - Page 23
![no-image](/images/manufacturer_photos/0/4/434/micrel_inc_sml.jpg)
MICRF506BML
Manufacturer Part Number
MICRF506BML
Description
Manufacturer
Micrel Inc
Datasheet
1.MICRF506BML.pdf
(42 pages)
Specifications of MICRF506BML
Operating Frequency (max)
450000kHz
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Modulation Type
FSK
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MICRF506BML
Manufacturer:
MICREL
Quantity:
380
Bit Synchronizer
A bit synchronizer can be enabled in receive mode
by selecting the synchronous mode (Sync_en=1).
The DataClk pin will output a clock with twice the
frequency of the bit rate (a bit rate of 20 kbit/sec
gives a DataClk of 20 kHz). A received symbol/bit on
DataIXO will be output on rising edge of DataClk.
The micro controller should therefore sample the
symbol/bit on falling edge of DataClk.
The bit synchronizer uses a clock which needs to be
programmed according to the bit rate. The clock
frequency should be 16 times the actual bit rate (a
bit rate of 20 kbit/sec needs a bit synchronizer clock
with frequency of 320 kHz). The clock frequency is
set by the following formula:
f
0000110
0000111
BITSYNC_CLK
July 2006
A6..A0
BitRate_clkS1
=
D7
Refclk_K × 2
-
BitRate_clkS0
ModclkS2
f
XCO
D6
(7-BITSYNC_clk S )
RefClk_K5
ModclkS1
D5
RefClk_K4
ModclkS0
D4
23
BitSync_clkS2
RefClk_K3
where
Refclk_K is also used to derive the modulator clock
and the bit rate clock.
At the beginning of a received data package, the bit
synchronizer clock frequency is not synchronized to
the bit rate. When these two are maximum offset to
each
synchronization is achieved.
D3
f
frequency (16 times higher than the bit rate)
f
Refclk_K: 6 bit divider, values between 1 and
63
BitSync_clkS: Bit synchronizer setting, values
between 0 and 7
BITSYNC_CLK
XCO
other,
: Crystal oscillator frequency
BitSync_clkS1
RefClk_K2
it
D2
:
takes
The
bit
BitSync_clkS0
22
RefClk_K1
D1
synchronizer
bit/symbols
+1 408-944-0800
M9999-092904
BitRate_clkS2
RefClk_K0
D0
before
clock