TDA5235
Appendix
Register Description
A_CDRI
Offset
047H
Reset Value
65H
Clock and Data Recovery Configuration
Register
ꢀ
ꢃ
ꢈ
ꢄ
ꢅ
ꢆ
ꢇ
ꢁ
&256$7
/)6$7
,9$/
,6$7
Z
Z
Z
Z
Field
Bits
Type
Description
CORSAT
7:6
w
Correlator output value (Timing extrapolation unit). The timing
extrapolation unit output value will be multiplied with the LFSAT
value. The timing extrapolation unit measures the data rate error during
the
RUNIN sequence and sets the I-Loop-Filter path when the RUNIN length
is
reached.
00B 1/4 calculated value
01B 1/8 calculated value
10B 1/16 calculated value
11B 1/32 calculated value
Reset: 1H
LFSAT
5:4
w
Loop Filter Saturation. The saturation of the I-Loop-Filter path will
be set according to the LFSAT
value.Remark that the internal phase resolution of the phase detector is
1/16 bit.
00B saturation to 1/32 bit
01B saturation to 1/16 bit
10B saturation to 2/16 bit
11B saturation to 4/16 bit
Reset: 2H
IVAL
3:2
w
I Value. The IVAL is the I value of the Clock-Recovery PI Loop-Filter.
The Phase-
Detector output error will be multiplied with this set value.
00B 1/32 phase detector error
01B 1/64 phase detector error
10B 1/128 phase detector error
11B 1/256 phase detector error
Reset: 1H
Data Sheet
213
V1.0, 2010-02-19
INFINEON [ Infineon ]
