TDA6509 datasheet(4/42 Pages) PHILIPS

4 / 42 page

2005 Mar 25

Philips Semiconductors

Product speciﬁcation

3-band mixer/oscillator and PLL for

terrestrial tuners

TDA6508; TDA6508A;

TDA6509; TDA6509A

loop filter between pin CP and pin VTUNE as shown in

Fig.27. The tuning amplifier can supply up to 33 V (max.)

at pin VT for controlling any of the internal oscillators via

external tank circuits. The phase comparator can operate

at 62.5, 50 or 31.25 kHz with a 4 MHz crystal, depending

on the reference divider ratio of either 64, 80 or 128; see

Table 4. An externally sourced signal having a frequency

between 3.58 MHz and 4.43 MHz can be used as a

reference frequency for the internal crystal oscillator at any

of the reference divider ratios.

In test mode, port P3 will output either half the crystal

reference frequency (1

⁄2fref) or half the reference divider

frequency (1

⁄2fdiv); see Table 5.

The device can be controlled according to the I2C-bus

format; see Table 1. The in-lock flag bit FL is set to logic 1

when the PLL is locked. This flag is read from the status

byte on pin SDA during a READ operation; see Table 6

and Table 7.

Automatic frequency control is provided using an internal

Analog-to-Digital Converter controlled by the voltage on

pin ADC. The ADC code is read during a READ operation;

see Table 8.

The device requires to be addressed by five sequential

serial bytes (including the address byte) via the I2C-bus to

set the crystal oscillator frequency, program the five ports

and to set the charge-pump current; see Table 1. The

address byte can have one of four possible device

addresses which are selected by applying a specific

voltage to pin AS; see Table 3.

QUICK REFERENCE DATA

Measured over full voltage and temperature ranges.

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VCC

supply voltage

4.5

5.5

ICC

supply current

VCC = 5 V; all ports off

fxtal

crystal oscillator frequency

Rxtal =25 Ω to 300 Ω

3.58

4.0

4.43

MHz

Ptot

total power dissipation

−

290

385

Tstg

IC storage temperature

−40

−+150

°C

Tamb

ambient temperature

−20

−+85

°C

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA6508TT

TSSOP32

plastic thin shrink small outline package; 32 leads body width 6.1 mm

SOT487-1

TDA6508ATT

TDA6509TT

TSSOP32

plastic thin shrink small outline package; 32 leads body width 6.1 mm

SOT487-1

TDA6509ATT

TDA6509HN

HVQFN32

plastic thermal enhanced very thin quad ﬂat package; no leads;

32 terminals; body 5

× 5 × 0.85 mm

SOT617-1

TDA6509AHN

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