TEA6824 Просмотр технического описания (PDF) - Philips Electronics

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Компоненты Описание

производитель

TEA6824

Front-end and PLL synthesizers for car radios

Philips Electronics 

Philips Semiconductors

In Car Entertainment (ICE) car radio

Preliminary specification

TEA6824T

Table 6 Data to be transmitted by the IC for data byte 2

BIT

DESCRIPTION

0 LSB of the IF-counter

1 IF-counter

2 IF-counter

3 IF-counter

4 IF-counter

5 IF-counter

6 IF-counter

7 MSB of the IF-counter

REFERENCED FREQUENCY GENERATION

Table 7 Division ratios

DIVISION RATIO

20 500

12 300

6 150

4 100

2 460

1 230

REFERENCE

FREQUENCY (kHz)(1)

3

5

10

15

25

50

Note

1. All specified frequencies are valid for a crystal

oscillator frequency of 61.5 MHz.

Table 8 Output signal of reference frequency divider

SYMBOL

PARAMETER

MIN.

V10-11(p-p)

differential output voltage between pins 10 and 11 0.3

(peak-to-peak value)

V10-4(p-p); V11-4(p-p) single-ended output voltage between pins 10 and 4 0.15

and between pins 11 and 4 (peak-to-peak value)

C10-4; C11-4

output capacitance between pins 10 and 4 and

−

between pins 11 and 4

R10-52; R11-52

output resistance between pins 10 and 52 and

800

between pins 11 and 52

TYP.

0.4

0.2

−

1 000

MAX.

0.5

0.3

4

1 200

UNIT

V

V

pF

Ω

IF-COUNTER

Table 9 IF-counter sensitivity

SYMBOL

V33-34

V37-35

PARAMETER

IF-counter sensitivity

IF-counter sensitivity

CONDITIONS

AM mode; m = 0

FM mode

MIN.

200

200

UNIT

µV

µV

AM and FM counting windows are 4 or 40 ms. AM counting resolution is 250 or 25 Hz. FM counting resolution is 5 kHz,

625 Hz, 50 kHz or 6.25 kHz. AM-IF-prescaler is divisible by 1. FM-IF-prescaler is divisible by 25 or 200.

1997 May 05

18

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