SP5512
1.3GHz Bidirectional I
2
C BUS Controlled Synthesiser
Supersedes version in April 1994 Consumer IC Handbook, HB3120 - 2.0
DS2384 - 4.0 January 1997
The SP5512 is a single-chip frequency synthesiser designed
for TV tuning systems. Control data is entered in the standard
I
2
C BUS format. The device has six controllable open-collector
output ports (P2-P7), each capable of sinking 20mA. In addition,
P6 is a 3-bit 5-level ADC input. The information on these ports
can be read via the I
2
C BUS.
The device has one fixed I
2
C BUS address and three
programmable addresses, allowing two or more synthesisers
to be used in a system.
FEATURES
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Complete 1·3GHz Single Chip System
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Programmable via the I
2
C BUS
Low Power Consumption (215mW Typ.)
Low Radiation
Phase Lock Detector
Varactor Drive Amp Disable
6 Controllable Outputs, 5 Bi-directional
5-Level ADC
Variable I
2
C BUS Address for Picture in Picture TV
ESD Protection
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ORDERING INFORMATION
SP5512S KG MPAS
(16-lead miniature plastic package)
Fig. 1 Pin connections – top view
APPLICATIONS
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Cable Tuning Systems
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VCRs
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Normal ESD handling precautions should be observed.