TEA6840 Ver la hoja de datos (PDF) - Philips Electronics

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TEA6840

New In Car Entertainment (NICE) car radio

Philips Electronics 

Philips Semiconductors

New In Car Entertainment (NICE) car radio

Preliminary specification

TEA6840H

FM/AM level detector

FM and AM level detectors provide the temperature

compensated output voltage. The starting points and

slopes of the level detector outputs are programmable via

the I2C-bus.

Test mode

The test mode of the IC is activated by:

• Sending the test byte (byte 5) to the IC

• Connecting pin 15 through a 100 kΩ resistor to VDDA1

• Applying 50 µA to pin 15.

If the test mode is enabled by pin 15:

• The settling time of the AM IF2 AGC is reduced to less

than 100 ms in the nominal application

• The digital-to-analog converters for the antenna Data

Access Arrangement (DAA) and the level DAA can be

clocked directly by the SCL line of the I2C-bus

• The output at pin 15 can be selected by the I2C-bus:

TEA6880H reference frequency, PLL reference

frequency or PLL programmable divider output

frequency

• The RDS update control circuit can be clocked directly

via pin 20

• Pin 31 can be used to enable the load PLL circuit of the

RDS update control circuit

• Charge pumps can be set into 3-state mode.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

VDDA1

VDDA2

VDDA4

VDDA5

VDDA6

VDDA7

VDDD

Tstg

Tamb

Ves

PARAMETER

CONDITIONS MIN.

analog supply voltage 1 for on-chip power supply

−0.3

analog supply voltage 2 for on-chip power supply

−0.3

analog supply voltage 4 for tuning PLL

−0.3

analog supply voltage 5 for FM and AM RF

−0.3

analog supply voltage 6 for 1st IF amplifier

−0.3

analog supply voltage 7 for 2nd IF amplifier

−0.3

digital supply voltage

−0.3

storage temperature

−55

operating ambient temperature

−40

electrostatic handling

note 1

−200

note 2

−2 000

Notes

1. Charge device model (R = 0 Ω, C = 200 pF).

2. Human body model (R = 1.5 kΩ, C = 100 pF).

MAX.

+10

+6.5

+10

+10

+10

+10

+6.5

+150

+85

+200

+2 000

UNIT

V

V

V

V

V

V

V

°C

°C

V

V

THERMAL CHARACTERISTICS

SYMBOL

Rth(j-a)

PARAMETER

thermal resistance from junction to ambient

CONDITIONS

in free air

VALUE

48

UNIT

K/W

1999 Jul 12

10

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