TDA6509 datasheet(11/42 Pages) PHILIPS

11 / 42 page

2005 Mar 25

Philips Semiconductors

Product speciﬁcation

3-band mixer/oscillator and PLL for

terrestrial tuners

TDA6508; TDA6508A;

TDA6509; TDA6509A

Table 6

Read data format

Note

1. MSB is transmitted first.

Table 7

Description of the bits used in Table 6

Table 8

Digital outputs for analog to digital converter (note 1)

Note

1. Accuracy is

±0.03 × VCC.

8.4

Power-on reset

The threshold level for the power-on reset supply voltage VPOR is set to 3.2 V at room temperature. Below this threshold,

the device is reset to the power-on state.

The following actions take place In the power-on state:

• The charge-pump current is set to 100 µA

• Test bits T2, T1 and T0 are set to logic 001; the charge-pump can either sink or source current

• The Weak signal booster is disabled

• All ports are off and the HIGH band is selected by default.

NAME

BYTE

BIT

MSB(1)

LSB

Address byte

ADB

MA1

MA0

R/W=1

Status byte

POR

BIT

DESCRIPTION

MA1 and MA0

programmable address bits; see Table 3

R/W

read/write mode selection; 1 = read mode

POR

Power-on reset ﬂag:

0: after end of the first read sequence

1: at Power-on

in-lock ﬂag:

0: loop is not locked

1: loop is locked

A2, A1 and A0

digital outputs of the 5-level ADC; see Table 8

VOLTAGE APPLIED TO PIN ADC

0000 VCC to 0.15 VCC

0.15 VCC to 0.3 VCC

0.3 VCC to 0.45 VCC

0.45 VCC to 0.6 VCC

0.6 VCC to 1 VCC

TDA6509 Datasheet(PDF) 11 Page - NXP Semiconductors

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