MC33410FTA View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC33410FTA Datasheet PDF : 27 Pages
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MC33410
data is input at Pin 39, passes through the scrambler, and
outputs at Pin 17.
The demodulated data from the RF receiver is input at
Pin 38, and is applied to the data slicer, and the clock
recovery block. The recovered clock is output at Pin 12. The
data passes through the descrambler, and is output at Pin 36.
Figure 5 is a diagram of the data paths through the
MC33410.
The procedure for entering the Data Modem mode is in
Table 11:
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Table 11. Entering Data Modem Mode
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Function
Bits Bit Value
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Set Tx Clock to desired frequency
4/23 – 18
As
Tx Clk = Fcrystal/(16 x Counter).
Desired
The above sequence is not critical, except that the last two
steps must be the setting of bit 5/20, and writing to register
11. Writing to register 11 is shown in Figure 6.
Set Scrambler & Descrambler tap
setting (Bit 7/1 = 0).
7/10 – 8
As
Desired
Bypass Data Detect.
7/3
1
Set MP1 to Data Detect Output.
7/5 – 4
01
Set Test Mode bits to connect Encode 7/17 – 15
110
Clock to Status (Pin 13).
Set Data Modem Mode (MP2 to
scrambler Input).
5/20
1
Write to Register 11 as shown in
Figure 6 to configure Pin 12.
N/A
N/A
Tx Data
Input
39
14
Crystal
15
Rx Data 38
Input
Figure 5. Data Modem Mode Configuration
Scrambler
Data
Slicer
Prog. 6–bit
Counter
MC33410
Clock
Recovery
÷16
Descrambler
17
Tx Data
Out
13 Tx Clock
Out
36
Rx Data
Out
12
Recovered
Rx Clock
18
MOTOROLA RF/IF DEVICE DATA
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