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TEA6840H Datenblatt(PDF) 10 Page - NXP Semiconductors |
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TEA6840H Datenblatt(HTML) 10 Page - NXP Semiconductors |
10 / 44 page 1999 Jul 12 10 Philips Semiconductors Preliminary specification New In Car Entertainment (NICE) car radio 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). Notes 1. Charge device model (R = 0 Ω, C = 200 pF). 2. Human body model (R = 1.5 k Ω, C = 100 pF). THERMAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VDDA1 analog supply voltage 1 for on-chip power supply −0.3 +10 V VDDA2 analog supply voltage 2 for on-chip power supply −0.3 +6.5 V VDDA4 analog supply voltage 4 for tuning PLL −0.3 +10 V VDDA5 analog supply voltage 5 for FM and AM RF −0.3 +10 V VDDA6 analog supply voltage 6 for 1st IF amplifier −0.3 +10 V VDDA7 analog supply voltage 7 for 2nd IF amplifier −0.3 +10 V VDDD digital supply voltage −0.3 +6.5 V Tstg storage temperature −55 +150 °C Tamb operating ambient temperature −40 +85 °C Ves electrostatic handling note 1 −200 +200 V note 2 −2000 +2000 V SYMBOL PARAMETER CONDITIONS VALUE UNIT Rth(j-a) thermal resistance from junction to ambient in free air 48 K/W |
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