Philips TSA5514 Service Manual

INTEGRATED CIRCUITS

DATA SH EET

TSA5514

1.3 GHz bidirectional I controlled synthesizer

Product speciﬁcation File under Integrated Circuits, IC02

C-bus

October 1992

Philips Semiconductors Product speciﬁcation

1.3 GHz bidirectional I2C-bus controlled synthesizer

FEATURES

• Complete 1.3 GHz single chip system

• Low power 5 V, 35 mA

• I2C-bus programming

• In-lock flag

• Varicap drive disable

• Low radiation

• Address selection for Picture-In-Picture (PIP), DBS

tuner (4 addresses)

• 5-level analog-to-digital converter

• 7 bus controlled ports; 3 output, 4 open collector

input/output

• Power-down flag

QUICK REFERENCE DATA

APPLICATIONS

• TV tuners

• VCR Tuners

DESCRIPTION

The TSA5514 is a single chip PLL frequency synthesizer designed for TV tuning systems. Control data is entered via

C-bus; five serial bytes are required to address the

the I device, select the oscillator frequency, programme the seven output ports and set the charge-pump current. Four of these ports can also be used as input ports (three general purpose I/O ports, one ADC). Digital information concerning those ports can be read out of the TSA5514 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 4 programmable addresses, programmed by applying a specific voltage to AS pin. The phase comparator operates at 7.8125 kHz when a 4 MHz crystal is used.

TSA5514

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

supply voltage − 5 − V

supply current − 35 − mA ∆fr frequency range 64 − 1300 MHz V

input voltage level

80 MHz to 150 MHz 12 − 300 mV 150 MHz to 1 GHz 9 − 300 mV

1 GHz to 1.3 GHz 40 − 300 mV f I T T

xtal o

amb stg

crystal oscillator frequency 3.2 4.0 4.48 MHz open-collector output current 10 −−mA operating ambient temperature range −10 − +80 °C IC storage temperature range −40 − +150 °C

ORDERING INFORMATION

EXTENDED TYPE

NUMBER

PINS PIN POSITION MATERIAL CODE

TSA5514 18 DIL plastic SOT102 TSA5514T 16 SO plastic SOT109A TSA5514AT 20 SO plastic SOT163A

PACKAGE

(1)

(2) (3)

Note

1. SOT102-1; 1996 December 4.

2. SOT109-1; 1996 December 4.

3. SOT 163-1; 1996 December 4.

October 1992 2

Philips Semiconductors Product speciﬁcation

1.3 GHz bidirectional I2C-bus controlled synthesizer

TSA5514

October 1992 3

Fig.1 Block diagram.

Philips Semiconductors Product speciﬁcation

1.3 GHz bidirectional I2C-bus controlled synthesizer

TSA5514

Fig.2 Pin configuration for SOT102.

Fig.3 Pin configuration for SOT109.

Fig.4 Pin configuration for SOT163.

October 1992 4

Philips Semiconductors Product speciﬁcation

1.3 GHz bidirectional I2C-bus controlled synthesizer

PINNING

SYMBOL

PD 1 1 1 charge-pump output Q1 2 2 2 crystal oscillator input 1 Q2 3 3 3 crystal oscillator reference voltage n.c. −−4 not connected SDA 4 4 5 serial data input/output SCL 5 5 6 serial clock input P7 6 6 7 port output/input (general purpose) n.c. −−8 not connected P6 7 7 9 port output/input for general purpose ADC P5 8 8 10 port output/input (general purpose) P4 9 9 11 port output/input (general purpose) AS 10 10 12 address selection input P2 11 11 13 port output P1 12 − 14 port output P0 13 − 15 port output V

IN1

IN2

UD 18 16 20 drive output

SOT102 SOT109 SOT163

14 12 16 voltage supply 15 13 17 UHF/VHF signal input 1 16 14 18 UHF/VHF signal input 2 (decoupled) 17 15 19 ground

DESCRIPTION

TSA5514

October 1992 5

Philips Semiconductors Product speciﬁcation

1.3 GHz bidirectional I2C-bus controlled synthesizer

FUNCTIONAL DESCRIPTION

The TSA5514 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/

After the address transmission (first byte), data bytes can be sent to the device. Four data bytes are required to fully program the TSA5514. The bus transceiver has an auto-increment facility which permits the programming of the TSA5514 within one single transmission (address + 4 data bytes).

The TSA5514 can also be partially programmed on the condition that the first data byte following the address is

Table 1 Write data format

Address 11000MA1MA00Abyte 1 Programmable divider 0 N14 N13 N12 N11 N10 N9 N8 A byte 2 Programmable divider N7 N6 N5 N4 N3 N2 N1 N0 A byte 3 Charge-pump and test bits 1 CP T1 T0 x x x OS A byte 4 Output ports control bits P7 P6 P5 P4 x P2 P1* P0* A byte 5

W = 0 (see Table 1)

MSB LSB

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 I2C-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 or AFC purpose. 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 UHF/VHF signal is first divided by 8 the step size is 62.5 kHz. A 3.2 MHz crystal can offer step sizes of 50 kHz.

TSA5514

Note to Table 1

* Not valid for TSA5514T 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 to P0 = 1 open-collector output is active P7 to P0 = 0 outputs are in high impedance state 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)

Note

1. x = don’t care

+ N13 × 213+... + N1 ×21+N0

,P7=f

ref

DIV

October 1992 6

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