SP5611
1·3GHz Bidirectional I
2
C Bus Controlled Synthesiser
Advance Information
Supersedes February 1997 version, DS3758-4.1
DS3758 - 5.0 June 1998
The SP5611 is a single chip frequency synthesiser de-
signed for TV tuning systems. Control data is entered in the
standard I
2
C BUS format. The device contains 4 addressable
bidirectional open collector ports, one of which is a 3-bit ADC.
The information on these ports can be read via the I
2
C BUS.
the device has 4 programmable addresses, programmed by
applying a specific input voltage to the P3 address select
input. This enables two or more synthesisers to be used in a
system.
CHARGE PUMP
CRYSTAL Q1
CRYSTAL Q2
SDA
SCL
1
2
3
4
5
6
7
8
16
15
14
13
DRIVE OUTPUT
V
EE
RF INPUT
RF INPUT
V
CC
NC
P3 ADD SELECT PORT
I/O PORT P4
SP5611
12
11
10
9
†
I/O PORT P7
FEATURES
s
Complete 1·3GHz Single Chip System
*
I/O PORT P6
†
I/O PORT P5
†
MP16
† = Logic level I/O port
*
= 3-bit ADC input
s
s
s
s
s
s
s
s
s
s
s
s
High Sensitivity RF Inputs
Programmable via I C BUS
Low Power Consumption (5V, 20mA)
Low Radiation
Phase Lock Detector
Varactor Drive Amp Disable
4 Bi-directional Controllable Outputs
5-Level ADC
Variable I
2
C BUS Address for Multi-tuner Applications
ESD Protection: 4kV, Mil-Std-883C, Method 3015
(1)
Switchable
4512/1024
Reference Divider
Pin and Function Compatible with SP5511S
(2)
2
Fig. 1 Pin connections – top view
APPLICATIONS
s
Satellite TV
s
Cable Tuning Systems
s
VCRs
THERMAL DATA
u
JC
= 41°C/W
u
JA
= 111°C/W
(1) Normal ESD handling precautions should be observed.
(2) The SP5511S does not have a switchable reference
division ratio.
ORDERING INFORMATION
SP5611 KG/MPAS
(Tubes)
SP5611S KG/MPAD
(Tape and reel)