• Part: TDA9829T
  • Description: Downconverter for DVB
  • Manufacturer: NXP Semiconductors
  • Size: 153.22 KB
Download TDA9829T Datasheet PDF
NXP Semiconductors
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...