ISL5239KIZ Intersil, ISL5239KIZ Datasheet - Page 21

• Manufacturer Part Number: ISL5239KIZ
• Description: IC LINEARIZER PRE-DISTORT 196BGA
• Manufacturer: Intersil

Specifications of ISL5239KIZ

• Function: Pre-Distortion Linearizer
• Rf Type: CDMA2000, UMTS
• Secondary Attributes: Sample Rates to 125MSPS
• Package / Case: 196-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

15:14
13:8
12:8
BIT
BIT
6:4
15
14
13
7
3
2
1
0
7
6
5
4
3
2
1
0
Reserved
Clear Status
Reserved
Reserved
Interpolation Factor
Reserved
Input Sequence Type
Input Value Type
Soft Reset
Reserved
Reserved
Reserved
HB 3 Q Saturation
HB 3 I Saturation
HB 2 Q Saturation
HB 2 I Saturation
HB 1Q Saturation
HB 1I Saturation
Serial Mode Error
Serial Mode Error Active
FUNCTION
FUNCTION
21
TYPE: INPUT FORMATTER AND INTERPOLATOR, ADDRESS: 0x02
TYPE: INPUT FORMATTER AND INTERPOLATOR, ADDRESS: 0x03
Soft reset that, when high, resets all input formatter and interpolator circuitry except the control fields.
When high, bit indicates HB 3 saturated at least one sample in the Q channel since the last clear status
When high, bit indicates HB 2 saturated at least one sample in the Q channel since the last clear status
When high, bit indicates HB 1 saturated at least one sample in the Q channel since the last clear status
Not used.
Set high to clear all status bits, set low (default) to allow the status bits to update.
Internal use only.
Not used.
The chip upsamples its input data by x1, x2, x4, or x8, and it performs the appropriate filtering to reject
the images created by the upsampling operation. Interpolation by 1 bypasses all the interpolation filters.
000 - x1 (default)
001 - x2
011 - x4
111 - x8
010, 100, 101, 110 Internal Use Only.
Not used.
The type of sample sequence of the Input Formatter and Interpolator input data IIN<17:0>, QIN<17:0>.
0 - PARALLEL. (default) The chip receives I and Q data in parallel through IIN<17:0>, QIN<17:0>The chip
ignores the input signal, ISTRB, in this mode.
1 - SERIAL. The chip receives I and Q data in a serial stream through IIN<17:0>. The serial stream
alternates between I and Q samples, and the chip uses the input signal, ISTRB, to detect which samples
are I and which samples are Q. The chip ignores the input signal QIN<17:0> in this mode.
Allows selection of the input type as 2’s complement or offset binary.
0 - 2’s complement (default) Input data.
1 - Offset Binary Input data.
Not used.
Internal use only.
Internal use only.
command. Invalid when Interpolation factor < x8.
When high, bit indicates HB 3 saturated at least one sample in the I channel since the last clear status
command. Invalid when Interpolation factor < x8.
command. Invalid when Interpolation factor < x8.
When high, bit indicates HB 2 saturated at least one sample in the I channel since the last clear status
command. Invalid when Interpolation factor < x8.
command. Invalid when Interpolation factor < x2.
When high, bit indicates HB 1 saturated at least one sample in the I channel since the last clear status
command. Invalid when Interpolation factor < x2.
When high, indicated the input formatter and interpolator block performed an illegal operation since the
last clear status command.
When high, indicates the input formatter and interpolator block is performing an illegal operation. Not
impacted by the clear status command.
TABLE 5. CONTROL
TABLE 6. STATUS
ISL5239
DESCRIPTION
DESCRIPTION