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SP8852EKGHCAR Datasheet

  • SP8852EKGHCAR

  • 2·7GHz Parallel Load Professional Synthesiser

  • 177.22KB

  • 13頁

  • MITEL

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SP8852E
2路7GHz Parallel Load Professional Synthesiser
Preliminary Information
Supersedes January 1996 version, DS4237 - 1.2
DS4237 - 2.0 June 1998
The SP8852E is one of a family of parallel load synthesisers
containing all the elements apart from the loop amplifier to
fabricate a PLL synthesis loop. Other parts in the series are
the SP8854E which has hard wired reference counter pro-
gramming and requires only a single 16-bit programming
word, and the SP8855E which is fully programmable using
hard wired links or switches.
The SP8852E is programmed using a 16-bit parallel data
bus. Data can be stored in one of two internal buffers, selected
by a single address bit on the input interface. In order to fully
program the device, two 16-bit words are required, one to
select the RF division ratio (A and M counters) and phase
detector gain, and one to set the 10-bit reference divider
count, phase detector state and sense. Once the reference
divide ratio has been set, frequency changes can be made by
a single 16-bit data load entry to the RF divider chain.
B4
B3
B2
B1
B0
0V (PRESCALER)
RF INPUT
RF INPUT
V
CC
(PRESCALER)
VEE
LOCK DETECT
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
1 44
SP8852E
STROBE
ADDRESS
NC
NC
NC
NC
NC
NC
NC
NC
NC
FEATURES
s
2路7 GHz Operating Frequency
s
Single 5V Supply
s
Low Power Consumption <1路3W
s
High Comparison Frequency : 20MHz
s
High Gain Phase Detector : 1mA/rad
s
Zero 鈥楧ead Band鈥?Phase Detector
s
Wide Range of RF and Reference Division Ratios
s
Programming by Dual Word Data Transfer
ABSOLUTE MAXIMUM RATINGS
Supply voltage
Operating temperature
Storage temperature
Prescaler and reference input voltage
Data inputs
Junction temperature
20路3V
to
16V
255擄C
to1100擄C
265擄C
to
1150擄C
2路5Vp-p
V
CC
10路3V
V
EE
20路3V
1175擄C
C-LOCK DETECT
R
SET
CHARGE PUMP OUTPUT
CHARGE PUMP REF
NC
NC
F
PD
*
F
REF
*
V
CC
REF OSC CAPACITOR
REF IN/CRYSTAL
HC44
*F
PD
and F
REF
outputs are reversed by the phase
detector sense bit in the F1/F2 programming word, bit
12. The above diagram is correct when bit 12 is high.
Fig. 1 Pin connections - top view
THERMAL DATA
u
JC
= 5擄C/W
u
JA
= 53擄C/W
ESD PROTECTION
1000V, human body model
ORDERING INFORMATION
SP8852E KG HCAR
Non-standard temperature range,
255擄C
to
1100擄C,
standard product screening
SP8852E IG HCAR
Industrial temperature range,
240擄C
to
185擄C,
standard product screening

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