MITEL SP5054KGDPAS, SP5054SKGMPAS Datasheet

2.6GHz 3-Wire BUS Controlled Synthesiser

The SP5054 is a single-chip frequency synthesiser designed
for satellite TV tuning systems. It is a programming variant of
the SP5055, allowing the design of one tuner with either I2C bus
or 3-wire bus format, depending on which device is inserted.
The SP5054, when used with a satellite varactor tuner, forms
a complete phase locked loop tuning system.

The circuit consists of a divide-by-16 prescaler with its own
preamplifier and a 14/15-bit programmable divider controlled
by a serially-loaded data register. Four independently
programmable open-collector outputs are included. The device
has four modes of operation, selected by the Mode Select
input; these modes are summarised in Table1.

The comparison frequencies are obtained by the division of
the output of a 4MHz crystal controlled on-chip oscillator. The
phase comparator has a charge pump output with an output
amplifier stage around which feedback may be applied. Only
one external transistor is required for varactor line driving.

SP5054

DS3048 - 3.4 May 1996

FEATURES

■ Complete 2·6GHz Single Chip System

■ 62·5kHz, 100kHz and 125kHz Step Size

■ Low Power Consumption (325mW Typ.)

■ Programming Compatible with Toshiba TD6380,

TD6381 and TD6382 *

■ Pin Compatible with SP5055 *

■ Low Radiation

■ Varactor Drive Amplifier Disable

■ Charge Pump Disable

■ Single Port 18/19 Bit Serial Data Entry

■ Four Controllable Outputs

■ ESD Protection †

* See notes on pin compatibility

† Normal ESD handling precautions should be observed

APPLICATIONS

■ Satellite TV

■ High IF Cable Tuning Systems

Fig. 1 Pin connections – top view

ORDERING INFORMATION

SP5054 KG DPAS (18-lead plastic package)
SP5054S KG MPAS (16-lead miniature plastic package)

SP5054

ELECTRICAL CHARACTERISTICS

T

AMB

= 220°C to 180°C, VCC = 14·5V to 15·5V. Frequency standard = 4MHz. All pin connections refer to DP package.
These Characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature
and supply voltage ranges unless otherwise stated.

Supply current
Prescaler input voltage
Prescaler input voltage

Prescaler input impedance
Input capacitance

High level input voltage
Low level input voltage
High level input current
Low level input current
Low level input current
High level input current
Low level input current

Clock inout hysteresis
Clock rate
Data set up time, t

2

Data hold time, t

3

Enable set up time, t

1

Enable hold time, t

5

Clock-to-enable time, t

4

Charge pump output current
Charge pump output leakage current
Drift due to leakage
Charge pump drive output current
Charge pump amplifier gain

Oscillator temperature stability
Oscillator stability with supply voltage

Recommended crystal series resistance
Crystal oscillator drive level
Crystal oscillator source impedance

Ports and Lock Output

Sink current
Port leakage current

Varactor drive amplifier disable
Charge pump disable

Typ.

Value

Conditions

Characteristic Pin

14

15,16

15,16

4,5,10
4,5,10
4,5,10

5

4,10

3
3

5
5
4

4
10
10
10

1

1

18

2

2

6-9,11

6-9

10

4

50

100

3
0

300
600
300
600
300

1

10

10

2350
2350

65

50

2

0·4

6150

6400

40

2400

80
400
400

V

CC

0·7

1
5

2250

700

2700

0·5

65

5

2
2

200

10

Units

Min. Max.

mA
mVrms
mVrms

Ω

pF

V

V
µA
µA
µA
µA
µA

V

MHz

ns
ns
ns
ns
ns

µA
nA

mV/s

mA

ppm/°C

ppm/V

Ω

mV p-p

Ω

mA

µA

µA
µA

VCC = 5V
500MHz to 2·6GHz sinewave
120MHz and 500MHz, see Fig. 6

VIN = 5·5V, VCC = 5·5V
VIN = 0V, VCC = 5·5V
VIN = 0V, VCC = 5·5V
VIN = 5·5V, VCC = 5·5V
VIN = 0V, VCC = 5·5V

See Fig. 4
See Fig. 4
See Fig. 4
See Fig. 4
See Fig. 4

V pin 1 = 2·0V
V pin 1 = 2·0V
At collector of external transistor
V pin 18 = 0·7V
I pin 18 = 100µA

Parallel resonant crystal (note 1)

Nominal spread = 615%

V

OUT

= 0·7V

V

OUT

= 13·2V

VIN < 0V
VIN < 0V

NOTE 1. The maximum resistance quoted refers to all conditions, including start-up.

2

SP5054

ABSOLUTE MAXIMUM RATINGS

All voltages are referred to VEE = 0V

Supply voltage
RF input voltage
Port voltage

Prescaler DC offset
Loop amplifier DC offset
Crystal oscillator DC offset
Data bus inputs
Storage temperature
Junction temperature
DP18 thermal resistance, chip-to-ambient

DP18 thermal resistance, chip-to-case
MP16 thermal resistance, chip-to-ambient

MP16 thermal resistance, chip-to-case
Power consumption at 5·5V

Parameter

Conditions

12

13,14

6-9
6-9

13-14

1,16

2

4,5,10

Max.Min.

Units

7

2·5

14

6

VCC10·3
VCC10·3
VCC10·3
VCC10·3

1150
1150

78
24

111

41

484

Value

20·3

20·3
20·3

20·3
20·3
20·3
20·3

255

V

V p-p

V
V

V
V
V

V
°C
°C

°C/W
°C/W

°C/W
°C/W

mW

Port in off state
Port in on state

With VCC applied

Pin

SP5054 SP5054S

14

15,16

6-9
6-9

15,16

1,18

2

4,5,10

Fig. 2 Typical input impedance

3