HSP50214BVCZ Intersil, HSP50214BVCZ Datasheet - Page 36

• Manufacturer Part Number: HSP50214BVCZ
• Description: IC DOWNCONVERTER 14BIT 120-MQFP
• Manufacturer: Intersil

Specifications of HSP50214BVCZ

• Function: Downconverter
• Rf Type: AMPS, CDMA, GSM, TDMA
• Package / Case: 120-MQFP, 120-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Output Configuration Example 1:
It is desired to output the I data word, followed by the Q data
word, followed by the Phase data word on the SEROUTA
output. Similarly, it is desired to output the Magnitude data
word followed by the Frequency data word, followed by the
Timing Error data word, followed by the AGC Level data word
on the SEROUTB output. Table 14 illustrates how Control
Word 19 should be programmed.
NOTE: Because all but the first data word in the serial output is
NOTE: Each type of data word should be used only once in each
Serial Output Configuration Example 2:
It is desired to output only three data words on each serial
output. The I data word, followed by the Q data word, followed
by the Magnitude data word is to be output on SEROUTA.
The Q data word followed by the Magnitude data word,
followed by the one other data word to be output on
SEROUTB. The choices for the remaining data word in the
SEROUTB signal are: phase, frequency, AGC level and
timing error. Table 15 illustrates how Control Word 19 should
be programmed.
TABLE 14. EXAMPLE 1 SERIAL OUTPUT CONTROL SETTINGS
BIT POSITION
CONTROL
WORD 19
30-28
27-25
24-21
20-18
17-15
14-12
11-9
8-6
5-3
2-0
identified by the data type that it follows, SEROUTB can only
be fully independent of the sequence in SEROUTA if it does
not use any of the same data word types. This implies a
partition as described in Example 1. Once a data word that is
used in SEROUTA is called out in SEROUTB, the remaining
sequence in SEROUTB will be identical to that portion of
SEROUTA sequence that follows the duplicate data type.
This follows from using the “Link follows ‘data type’ data”
for word linkage.
data stream. If the “Link following I data” is programmed
with the data type identifier for I, then the part will repeat the
I data word until all of the data word locations are filled. In
Example 1, if bits 20-18 were erroneously programmed to
000 (I data) then the SEROUTA would be four sequential
repeats of the I data word.
SEROUTA Data Source
SEROUTB Data Source
Number of Serial Word
Links in a Chain
Link following I data
Link following Q data
Link following |r| data
Link following φ data
Link following f data
Link following AGC data
Link following Timing
Error data
FUNCTION
36
VALUE
XXX
BIT
000
010
100
001
100
101
011
111
110
RESULT
(Timing)
(Zeros)
(AGC)
(N/A)
(|r|)
(Q)
(4)
(φ)
(I)
(f)
HSP50214B
The serial data stream looks like:
As shown by this example, once Q was linked to |r| in the
SEROUTA chain, the SEROUTB chain must have |r|
following Q, if Q is selected. Figure 35 illustrates the
construction of the serial output streams. If the serial data
stream was changed to be a length of four data words, then,
by default, the SEROUTA would be whatever is selected for
SEROUTB data word 3. SEROUTB would need to identify
the fourth data word. Thus, SEROUTA and SEROUTB are
not fully independent because they share the Q data
word (and by default, the MAGNITUDE follows Q data link
and whatever is selected for data word 3 to follow
MAGNITUDE data in SEROUTB).
The other signals provided with the SEROUTA and
SEROUTB are the SERSYNC and the SERCLK. The
SERSYNC signal can be programmed in either early or late
sync mode. The sync signal is pulsed active low or active
high for each information word link of the chain of data
created using Control Word 19. Figure 36 shows the four
possible configurations of SERSYNC as programmed using
Control Word 20.
As previously discussed, Control Word 20, Bits 17 and 19,
set the functionality of the LSB of each data word. These bits
may be programmed to be either a logic “0”, logic “1” or as
normal data. The fixed states are designed to allow the
microprocessor to synchronize to the serial data stream.
TABLE 15. EXAMPLE 2 SERIAL OUTPUT CONTROL SETTINGS
start
I data word >
Q data word >
|r|data word >
end >
start
Q data word >
|r|data word >
TBD data word>
end >
BIT POSITION
CONTROL
WORD 19
30-28
27-25
24-21
20-18
17-15
14-12
11-9
8-6
5-3
2-0
SEROUTB:
SEROUTA:
SEROUTA Data Source
SEROUTB Data Source
Number of Serial Word
Links in a Chain
Link following I data
Link following Q data
Link following |r| data
Link following φ data
Link following f data
Link following AGC data
Link following Timing
Error data
FUNCTION
SEROUTA source data = 000
Link following I data = 001
Link following Q data = 010
SEROUTB source data = 001
Link following Q data = 010
Link following | r | data = TBD
CONTROL WORD 19 FIELD
CONTROL WORD 19 FIELD
VALUE
TBD
XXX
XXX
XXX
XXX
BIT
000
001
011
001
010
RESULT
May 1, 2007
(N/A)
(N/A)
(N/A)
(N/A)
TBD
(Q)
(Q)
(|r|)
(3)
(I)
FN4450.4