1998 Nov 09

2

Philips Semiconductors

Product specification

Downconverter for DVB

TDA9829T

FEATURES

• 5 V supply voltage

• Gain controlled IF-amplifier

• Mixer for DVB-IF downconversion

• VCO for Quadrature Amplitude Modulation (QAM)

carrier recovery

• External VCO control

• Internal and external AGC

• DVB output level adjust via AGC adjust

• High level DVB operational output amplifier

• Mute switch for DVB output

• Tuner AGC with adjustable takeover point (TOP)

• AFC detector without extra reference circuit

• Stabilizer circuit for ripple rejection and to achieve

constant output signals.

GENERAL DESCRIPTION

The TDA9829T is an integrated circuit for DVB-IF

processing.

QUICK REFERENCE DATA

Notes

2. This parameter is not tested during production and is only given as application information for designing the television

receiver.

3. To match the AFC output signal to different tuning systems a current source output is provided. The test circuit is

given in Fig.4. The AFC-steepness can be changed by the resistors at pin 14.

4. Depending on the ratio

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

note 1

4.5

5.0

5.5

V

supply current

81

96

111

mA

input sensitivity (RMS value)

−1 dB DVB signal at output

−

100

150

µV

∆ϕ

SSB

VCO phase noise

f = 100 kHz; free-running

103

107

−

dBc/Hz

α

mute

mute attenuation

note 2

−

36

−

dB

sink current

maximum tuner gain

reduction; see Fig.3

1.5

2

2.6

mA

control steepness

USA

notes 3 and 4; see Fig.4

0.7

0.98

1.3

µA/kHz

output voltage

(peak-to-peak value)

internal AGC

1.8

2.1

2.4

V

−1 dB bandwidth

11

12

−

MHz

30

35

−

dB

PSRR

power supply ripple rejection at

pin 11

see Fig.5

26

36

−

dB