TEA6820T Просмотр технического описания (PDF) - Philips Electronics

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TEA6820T

In Car Entertainment (ICE) car radio

Philips Electronics 

Philips Semiconductors

In Car Entertainment (ICE) car radio

Preliminary specification

TEA6820T; TEA6822T

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP.

Unweighted voltage level

V50-4

∆V50-4/∆V37-35

unweighted voltage level

slope of unweighted voltage level

see Fig.9; V38 = 2.52 V

V37-35 ≤ 2.5 µV

V37-35 = 1.0 mV

100 µV (RMS) ≤ V37-35

< 300 mV

1.6 2.2

2.7 3.4

temperature

compensation off

0.75 0.9

temperature

compensation on

0.6 0.75

∆V50-4/VK

temperature dependence

V37-35 = 1 mV

temperature

compensation off

−

5.0

temperature

compensation on

−

2.0

I50(max)source

I50(max)sink

Ro50

maximum output source current

maximum output sink current

output resistance

0.3 −

−50 −

−

−

ADJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND Vmute/AML; note 1

∆V50

V38-4

∆V50-4/∆V38-4

Ri38

adjusting range voltage

internal bias voltage

adjusting gain

input resistance

V37-35 = 10 mV (RMS)

−1.8 −

−

2.6

−

−0.9

−

80

MUTING DEPENDENCE ON ADJUST OF LEVEL UNWEIGHTED VOLTAGE; note 2

α = V43/V47

∆α/∆V49

start of mute

mute slope

V49/V21 = 0.625

α = −6 dB

1

3

−

25

Soft mute, time constant control, mono/stereo blend and high-cut control; see Fig.22

MUTE VOLTAGE; note 3

V49-4

mute voltage

∆V49-4/∆V37-35 slope of mute voltage

∆V49-4/VK

temperature dependence

V38 = 2.52 V

V37-35 < 2.5 µV

V37-35 = 1.0 mV

100 µV (RMS) ≤ V37-35

< 300 mV

V37-35 = 1 mV

1.8 2.2

2.7 3.4

0.75 0.9

−

5.0

MAX. UNIT

3.0 V

4.7 V

1.05 V/20 dB

0.9 V/20 dB

−

mV/VK

−

mV/VK

−

mA

−

µA

300 Ω

+1.8 V

−

V

−

−

−

kΩ

7

dB

−

dB/V

3.2 V

4.7 V

1.05 V/20 dB

−

mV/VK

1997 Feb 12

10

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