TDA9830T-T

更新时间： 2024-01-02 01:03:58

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恩智浦 - NXP		电视光电二极管
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15页	141K
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TDA9830T-T 数据手册

Philips Semiconductors

Product speciﬁcation

TV sound AM-demodulator and audio source switch

TDA9830

SYMBOL

V₈₋₁₃

PARAMETER

crosstalk and mute attenuation

DC-potential

CONDITIONS

MIN.

TYP.

MAX.

UNIT

20 Hz to 20 kHz

−

V_7,8,9−13

R_7,9−13

G_7,9−8

2.00

2.15

2.30

input resistance

kΩ

gain of audio switch

−0.5

+0.5

0.8

V₁₀₋₁₃

audio switching voltage to activate pin 7

audio switching voltage to activate pin 9

input voltage for MUTE-ON

input voltage for MUTE-OFF

−

V₁₀₋₁₃

note 4

1.5

−

V_P

V₁₂₋₁₃

−

0.8

1.5

−110

−

V_P

I_{10, 12}

V_8-13

output current of switching-pins at

V_{10, 12-13}= 0 V

−145

−185

µA

DC-plop at AF output pin with switching

from internal to external audio signal or

to mute-state or vice-versa

note 5

−

R₈

output resistance

100

150

Ω

Ripple rejection note 6

RR AF signal output:

−

α_RR= V_rippleon V_P/ V_rippleon V_out

AF signal output with AF signal from

external source

Notes to the characteristics

1. In the power supply voltage range V_P1= 5.0 V up to 8.0 V the performance will not change essentially.

With power supply from V_P2= 12.0 V the performance will be comparable with the performance at V_P1= 5.0 V up to

8.0 V.

The unused power supply pin must be not connected.

2. Start of gain control (low IF input signal) at −3 dB AF signal reduction at pin 6.

3. End of gain control (high IF input signal) at +1 dB AF signal expansion at pin 6.

4. This state is also valid for pin left open-circuit.

5. If a DC-plop of about maximum 100 mV is acceptable when switching from internal to external audio-signal or from

internal to mute state or vice versa, the capacitor between pin 6 and 7 can be omitted and pin 6 can be connected

to pin 7.

6. Measured with V_ripple= 200 mV_(p-p)at 70 Hz superimposed on supply voltage V_P.

7. Dependent on value of AGC capacitor.

June 1994

1...4 5 678 9 10...15

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