TDA9829T
TDA9829T is Downconverter for DVB manufactured by NXP Semiconductors.
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. QUICK REFERENCE DATA SYMBOL VP IP V3-4(rms) ∆ϕSSB αmute I12(sink) CRstps(US) V11(p-p) B- 1d B αH PSRR Notes 1. Performance may be decreased at VP = 4.5 V. PARAMETER supply voltage supply current input sensitivity (RMS value) VCO phase noise mute attenuation sink current control steepness ∆I14/∆f IF for USA output voltage (peak-to-peak value)
- 1 d B bandwidth power supply ripple rejection at pin 11
- 1 d B DVB signal at output f = 100 k Hz; free-running note 2 maximum tuner gain reduction; see Fig.3 f IF = 43.75 MHz; notes 3 and 4; see Fig.4 CL < 15 p F; RL > 5 kΩ; with internal AGC CL < 15 p F; RL > 5 kΩ see Fig.5 note 1 CONDITIONS MIN. 4.5 81
- 103
- 1.5 0.7 1.8 11 30 26 TYP. 5.0 96 100 107 36 2 0.98 2.1 12 35 36 GENERAL DESCRIPTION
The TDA9829T is an integrated circuit for DVB-IF processing.
MAX. 5.5 111 150
- - 2.6 1.3 2.4
- -
- UNIT V m A µV d Bc/Hz d B m A µA/k Hz V MHz d B d B suppression of in-band harmonics Vo = 2.0 V (p-p)
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 ∆C/C0 of the LC resonant circuit of VCO (Q0 > 50; C0 = Cint + Cext; see Table 2).
1998 Nov 09
Philips Semiconductors
Product specification
Downconverter for DVB
ORDERING INFORMATION TYPE...