Datasheet TSA5055T Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

TSA5055T

2.5 GHz bi-directional I
controlled synthesizer

Product specification
File under Integrated Circuits, IC02

2

C-bus

November 1991

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

GENERAL DESCRIPTION

The TSA5055T is a single chip PLL
frequency synthesizer designed for
satellite TV tuning systems. Control
data is entered via the I2C-bus; five
serial bytes are required to address
the device, select the oscillator
frequency, program the six output
ports and set the charge-pump
current. Four of these ports can also
be used as input ports (3 general
purpose I/O ports, one A/D
converter). Digital information
concerning these ports can be read
out of the TSA5055T on the SDA line
(one status byte) during a READ
operation. A flag is set when the loop
is “in-lock” and is read during a READ
operation. The device has one fixed
I2C-bus address and 3 programmable
addresses, programmed by applying

a specific voltage to port 3. The phase
comparator operates at 7.8125 kHz
when a 4 MHz crystal is used.

FEATURES

• Complete 2.5 GHz single-chip
system

• Low power 5 V, 60 mA

2

• I

C-bus programming

• In-lock flag

• Varicap drive disable

• Low radiation

• 5-level A/D converter

• Address selection for

Picture-In-Picture (PIP), DBS
tuner, etc.

TSA5055T

• 6 controllable outputs,
4 bi-directional

• Power-down flag

• Available in SOT109A package

APPLICATIONS

• Satellite TV

• High IF cable tuning systems

QUICK REFERENCE DATA

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

V

CC

I

CC

supply voltage 4.75 5 5.5 V

supply current − 60 80 mA
∆f frequency range 1 − 2.5 GHz
V

I (RMS)

input voltage level (RMS value)

1 GHz to 1.8 GHz 50 − 300 mV

1.8 GHz to 2.6 GHz 70 − 300 mV

f

XTAL

I

O

crystal oscillator 3.2 4 4.48 MHz

open−collector output current

P7, P6, P5, P4 −−10 mA

output current

P3, P0 − 1 − mA
T
T
R

amb
stg
th j-a

operating ambient temperature range −10 − 70 °C

storage temperature range −40 − 125 °C

thermal resistance − 110 − K/W

ORDERING INFORMATION

EXTENDED

TYPE NUMBER

PINS PIN POSITION MATERIAL CODE

TSA5055T 16 SO PLASTIC SOT109A

PACKAGE

(1)

Note

1. SOT109-1; 1996 December 5.
November 1991 2

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled
synthesizer

TSA5055T

November 1991 3

Fig.1 Block diagram.

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

TSA5055T

LIMITING VALUES

In accordance with Absolute Maximum System (IEC 134).

SYMBOL PARAMETER MIN. MAX. UNIT

V

CC

V

P1

V

P2

V

P4

V

P5

V

P6

V

P13

V

P16

I

6L

I

4L

T

stg

T

j

supply voltage −0.3 6 V
charge-pump output voltage −0.3 V
crystal (Q1) input voltage −0.3 V

CC
CC

serial data input/output −0.3 6 V
serial clock input −0.3 6 V
input/output ports P7 - P0 −316V
prescaler inputs −0.3 2.5 V
drive output −0.3 V

CC

output ports P7 - P4 (open collector) −115mA
SDA output (open collector) −15 mA
storage temperature range −40 125 °C
junction temperature − 150 °C

THERMAL RESISTANCE

V
V

V

SYMBOL PARAMETER THERMAL RESISTANCE

R

th j-a

from junction to ambient in free air 110 K/W

HANDLING

Every pin withstands the ESD test in accordance with MIL-STD-883C, category A (1000 V).

November 1991 4

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

PINNING

SYMBOL PIN DESCRIPTION

PD 1 charge-pump output
Q1 2 crystal oscillator input 1
Q2 3 crystal oscillator input 2
SDA 4 serial data input/output
SCL 5 serial clock input
P7 6 port output/input (general purpose)
P6 7 port output/input (A/D converter)
P5 8 port output/input (general purpose)
P4 9 port output/input (general purpose)
P3 10 port output/input (address selection)
P0 11 port output
V

CC

RF

IN1

RF

IN2

GND 15 ground
UD 16 drive output

12 voltage supply
13 UHF/VHF signal input 1
14 UHF/VHF signal input 2 (decoupled)

TSA5055T

Fig.2 Pinning diagram.

FUNCTIONAL DESCRIPTION

The TSA5055T is controlled via the two-wire I2C-bus. For
programming, there is one module address (7 bits) and the
R/W bit for selecting READ or WRITE mode.

WRITE mode:
R/

W = 0 (see Table 1)

After the address transmission (first byte), data bytes can
be sent to the device. Four data bytes are needed to fully
program the TSA5055T. The bus transceiver has an
auto-increment facility that permits the programming of the
TSA5055T within one single transmission
(address + 4 data bytes).

The TSA5055T can also be partly programmed on the
condition that the first data byte following the address is

byte 2 or byte 4. The meaning of the bits in the data bytes
is given in Table 1. The first bit of the first data byte
transmitted indicates whether frequency data (first bit = 0)
or charge pump and port information (first bit = 1) will
follow. Until an I

2

C-bus STOP condition is sent by the
controller, additional data bytes can be entered without the
need to re-address the device. This allows a smooth
frequency sweep for fine tuning. At power-on, the ports are
set to the high impedance state.

The 7.8125 kHz reference frequency is obtained by
dividing the output of the 4 MHz crystal oscillator by 512.
Because the input of the UHF/VHF signal is first divided by
16, the step size is 125 kHz. A 3.2 MHz crystal can offer a
step size of 100 kHz.

November 1991 5

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

Table 1 Write data format

MSB LSB

Address 11000MA1MA00Abyte 1
Programmable

divider
Programmable

divider
Charge-pump

and test bits
Output ports

control bits

MA1, MA0 programmable address bits (see Table 4)
A acknowledge bit
N14 to N0 programmable divider bits
N = N14 × 2
CP charge-pump current
CP = 0 50 µA
CP = 1 220 µA
P7 - P4 = 1 open-collector outputs are active
P7 - P0 = 0 outputs are in high impedance state
P3 - P0 = 1 current-limited outputs are active
T1, T0, OS = 0 0 0 normal operation
T1 = 1, P6 = f
T0 = 1 3-state charge-pump
OS = 1 operational amplifier output is switched off (varicap drive disable)
X don’t care.

14

+ N13 × 213+ ... + N1 × 21+N0

, P7 = f

ref

0 N14 N13 N12 N11 N10 N9 N8 A byte 2

N7 N6 N5 N4 N3 N2 N1 N0 A byte 3

1 CP T1 T0 1 1 1 OS A byte 4

P7 P6 P5 P4 P3 X X P0 A byte 5

DIV

TSA5055T

READ mode:
R/

W + 1 (see Table 2)

Data can be read out of the
TSA5055T by setting the R/W bit to 1.
After the slave address has been
recognized, the TSA5055T generates
an acknowledge pulse and the first
data byte (status word) is transferred
on the SDA line (MSB first). Data is
valid on the SDA line during a high
position of the SCL clock signal.

A second data byte can be read out of
the TSA5055T if the processor
generates an acknowledge on the

November 1991 6

SDA line. End of transmission will
occur if no acknowledge from the
processor occurs.The TSA5055T will
then release the data line to allow the
processor to generate a STOP
condition. When ports P3 to P7 are
used as inputs, they must be
programmed in their high-impedance
state.

The POR flag (power-on-reset) is set
to 1 when VCC goes below 3 V and at
power-on. It is reset when an end of
data is detected by the TSA5055T
(end of a READ sequence). Control of
the loop is made possible with the

in-lock flag FL, which indicates
(FL = 1) when the loop is
phase-locked.

The I2, I1 and I0 bits represent the
status of the I/O ports P7, P5 and P4
respectively. A logic '0' indicates a low
level and a logic '1' a high level (TTL
levels). A built-in 5-level A/D
converter is available at I/O port P6.
This converter can be used to feed
AFC information to the controller from
the IF section of the television, as
shown in Fig.3. The relationship
between bits A2, A1, A0 and the input
voltage at port P6 is given in Table 3.

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

TSA5055T

Table 2 Read data format

MSB LSB

Address 11000MA1MA01Abyte 1
Status byte POR FL I1 I1 I0 A2 A1 A0 − byte 2

POR power-on-reset flag. (POR = 1 on power-on)
FL in-lock flag (FL = 1 when the loop is phase-locked).
I2, I1, I0 digital information for I/O ports P7, P5 and P4 respectively.

1

A2, A1, A0 digital outputs of the 5-level A/D converter. Accuracy is

⁄2LSB (see Table 3).

MSB is transmitted first.

Address selection (see Table 4)
The module address contains programmable address bits (MA1 and MA0), which offer the possibility of having several

synthesizers (up to 3) in one system. The relationship between MA1 and MA0 and the input voltage at port P3 is given
in Table 4.

Table 3 A/D converter levels

Voltage applied on port P6 A2 A1 A0

0.6 V

0.45 V

0.3 V

0.15 V
0 to 0.15 V

to V

CC

to 0.6

CC

to 0.45 V

CC

to 0.3 V

CC

CC

CC

CC
CC

CC

Table 4 Address selection

MA1 MA0 Voltage applied on port P3

0 0 0 to 0.1 V

CC

0 1 open
1 0 0.4 to 0.6 V

CC

1 1 0.9 VCCto 13.5 V

100
011
010
001
000

November 1991 7

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

TSA5055T

Fig.3 Typical application diagram.

November 1991 8

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

TSA5055T

CHARACTERISTICS

V

CC

= 5 V; T

= 25 °C; unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

T

amb

supply voltage range 4.75 − 5.5 V
operating ambient temperature

−10 − 70 °C

range

f

RF

RF input frequency range 1 − 2.5 GHz
N divider 256 − 32767
I

CC

f

XTAL

Z

I

V

I (RMS)

supply current − 60 80 mA

crystal oscillator frequency 3.2 4 4.48 MHz

input impedance (pin 2) −480 −400 −320 Ω

input voltage level (RMS value) VCC = 4.75 to 5.5 V;

T

= −10 to 70 °C

f = 1 to 1.8 GHz 50/−13 − 300/2.6 mV

f = 1.8 to 2.5 GHz see typical sensitivity curve

amb

70/−10 − 300/2.6 mV

in Fig.4

R

I

C

I

prescaler input impedance see Smith chart in Fig.5 − 50 −Ω

input capacitance − 2 − pF

Output ports P3, P0 (current limited)

I

LO

I

OS

leakage current V

= 13.5 V −−10 µA

10H

output sink current V10 = 13.5 V 0.7 1 1.5 mA
Output ports P7 to P4 (open collector) (see note 1)
I

LO

V

OL

leakage current V6H = 13.5 V −−10 µA

output voltage LOW I6L = 10 mA

−−0.7 V

note 2

Input ports P6, P3

I

IH

I

IL

input current HIGH V7H = 13.5 V −−10 µA

input current LOW V7L = 0 −10 −− µA

Input ports P7, P5, P4

V

IH

V

IL

I

IH

I

IL

input voltage HIGH 2.7 −− V

input voltage LOW −−0.8 V

input current HIGH V6H = 13.5 V −−10 µA

input current LOW V6L = 0 −10 −− µA

Bus inputs SCL, SDA

V

IH

V

IL

I

IH

input voltage HIGH 3 − 5.5 V

input voltage LOW −−1.5 V

input current HIGH V5H = 5 V;

VCC = 0

November 1991 9

−−10 µA

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

TSA5055T

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Bus inputs SCL, SDA

I

IL

input current LOW V5H = 5 V;

−−10 µA

VCC = 5 V
V

5L

= 0;

−10 −− µA

VCC = 0

= 0;

V

5L

−10 −− µA

VCC = 5 V

Output SDA (open collector)

I

4H

V

4L

leakage current V4H = 5.5 V −−10 µA

output voltage I4L = 3 mA −−0.4 V

Charge-pump output PD

I

OH

I

OL

V

O

I

1leak

output current HIGH (absolute value) CP = 1 90 220 300 µA

output current LOW (absolute value) CP = 0 22 50 75 µA

output voltage in-lock 1.5 − 2.5 V

off-state leakage current T0 = 1 −5 − 5nA

Operational amplifier output UD (test mode: T0 = 1)

V

16

output voltage VIL = 0 −−100 mV

output voltage when switched off T0 = 1;

−−250 mV
OS = 1;
V

= 2 V

IL

h

FE

operational amplifier current gain
I16/(I1 - I

1leak

)

T0 = 1;
OS = 0;

2000 −−

VIL = 2 V;
I16 = 10 µA

Notes to the characteristics

1. When a port is active, the collector voltage must not exceed 6 V.

2. Measured with a single open collector active.

November 1991 10

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

VCC= 5 V; T

amb

=25°C.

TSA5055T

Fig.4 Prescaler typical input sensitivity curve.

VCC= 5 V; reference value = 50 Ω.

Fig.5 Prescaler Smith chart of typical input impedance.

November 1991 11

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

TSA5055T

FLOCK FLAG DEFINITION (FL)

When the FL flag is 1, the maximum frequency deviation (∆f) from stable frequency can be expressed as follows:

∆fK

⁄()I

VCOKO

× C1 C2+()× C1 C2×()⁄±=

CP

where:
K
I
K

VCO

CP

O

= oscillator slope (Hz/V)
= charge-pump current (A)
=4×10

6

C1 and C2 = loop filter capacitors.

Fig.6 Loop filter.

Flock flag settings

MIN. MAX. UNIT

Time span between actual phase lock and FL-flag setting 1024 1152 µs
Time span between the loop losing lock and FL-flag resetting 0 128 µs

FLOCK FLAG APPLICATION

• K

= 50 MHz/V (UHF band)

VCO

• ICP = 220 µA

• C1 = 180 nF

• C2 = 39 nF

•∆f = ±85.8 kHz.

November 1991 12

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

PACKAGE OUTLINE

SO16: plastic small outline package; 16 leads; body width 3.9 mm

D

c

y

Z

16

9

TSA5055T

SOT109-1

E

H

E

A

X

v M

A

pin 1 index

1

e

0 2.5 5 mm

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

mm

A

max.

1.75

0.069

A1A

0.25

0.10

0.010

0.004

2

1.45

1.25

0.057

0.049

A3b

0.25

0.01

p

0.49

0.36

0.019

0.014

0.25

0.19

0.0100

0.0075

UNIT

inches

Note

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

(1)E(1) (1)

cD

10.0

9.8

0.39

0.38

8

b

p

scale

eHELLpQZywv θ

4.0

1.27

3.8

0.16

0.050

0.15

w M

6.2

5.8

0.244

0.228

A

2

1.05

0.041

Q

A

1

detail X

1.0

0.7

0.4

0.6

0.028

0.039

0.020

0.016

(A )

L

p

L

0.25 0.1

0.25

0.01

0.01 0.004

A

3

θ

0.7

0.3

0.028

0.012

o

8

o

0

OUTLINE
VERSION

SOT109-1

IEC JEDEC EIAJ

076E07S MS-012AC

REFERENCES

November 1991 13

EUROPEAN

PROJECTION

ISSUE DATE

95-01-23
97-05-22

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

SOLDERING
Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in

“IC Package Databook”

our

Reflow soldering

Reflow soldering techniques are suitable for all SO
packages.

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.

(order code 9398 652 90011).

Wave soldering

Wave soldering techniques can be used for all SO
packages if the following conditions are observed:

• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.

• The longitudinal axis of the package footprint must be
parallel to the solder flow.

• The package footprint must incorporate solder thieves at
the downstream end.

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.

Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

Repairing soldered joints

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

TSA5055T

November 1991 14

Philips Semiconductors Product specification

2.5 GHz bi-directional I2C-bus controlled synthesizer

DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

TSA5055T

PURCHASE OF PHILIPS I

Purchase of Philips I
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.

2

C COMPONENTS

2

C components conveys a license under the Philips’ I2C patent to use the

November 1991 15