ISL5217KI Intersil, ISL5217KI Datasheet - Page 29

• Manufacturer Part Number: ISL5217KI
• Description: Up/Down Conv Mixer 2.5V 196-Pin BGA
• Manufacturer: Intersil

Specifications of ISL5217KI

• Package: 196BGA
• Maximum Power Dissipation: 1970 mW
• Operating Supply Voltage: 2.5 V

NOTE: Writing to the LSW generates the update strobe to load the slave configuration reg when in the immediate mode
14:12
15:0
15:0
15:0
11:0
BIT
BIT
BIT
BIT
BIT
8:7
6:0
15
Carrier Phase Offset
Carrier NCO
Carrier NCO
Reserved
Step Atten (2:0)
Unsigned Gain Multiplier
Gain Profile Latency
Gain Profile Length
FUNCTION
FUNCTION
FUNCTION
FUNCTION
FUNCTION
29
Not Used.
Select 1 of 8 fixed attenuations
The gain multiplier is computed by the formula:
Set bit 7 high to remove two edge latencies from the delay path. This should be combined DS=3, IP=4
Set to the upper address used for the gain profile RAM.
Initializes the most-significant 16-bits of the phase accumulator. The carrier phase offset is computed by
the formula:
Carrier Phase Offset (15:0) = INT [(Phase Offset 0 / 3600 * 2
CF(15:0) is loaded in this address. The SIN/COS generator is controlled by a 32-bit NCO clocked at the
output clock rate. The center frequency is computed by the formula:
f
000 - scale by 4096
001 - scale by 256
010 - scale by 32
011 - scale by 16
100 - scale by 8
101 - scale by 4
110 - scale by 2
111 - scale by 1
Gain(11:0) =[10
Bit weight. 2
Maximum 0xFFF = 1.0 - 2-12
Minimum
settings to provide perfect symmetry through the gain block. Set bit 8 high to bypass all latency alignment
circuitry and to use TXENX as input to the channel.
CF(31:16) is loaded in this address.
C = CF(31:0) x fCLK x 2
TYPE: SINGLE CHANNEL DIRECT, ADDRESS: 0x07
TYPE: SINGLE CHANNEL DIRECT, ADDRESS: 0x08
TYPE: SINGLE CHANNEL DIRECT, ADDRESS: 0x09
TYPE: SINGLE CHANNEL DIRECT, ADDRESS: 0x0a
TYPE: SINGLE CHANNEL DIRECT, ADDRESS: 0x0b
TABLE 24. CARRIER FREQUENCY (31:16) MSW
TABLE 25. CARRIER FREQUENCY (15:0) LSW
TABLE 23. CARRIER PHASE OFFSET (15:0)
0x800 = 0.5
0x001 = 2
0x000 = 0.0
-1
2
-2
|(Gain(db)| / 20 )
TABLE 27. GAIN PROFILE
... 2
-12
-12
-32
TABLE 26. GAIN
ISL5217
; CF(31:0) = INT(fC/fCLK X 2
=0.9998
2
12
]Hex
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
32
).
32
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July 8, 2005
FN6004.3