STV4100 – Ultra-compact low-power 3.3-V terrestrial tuner IC

Part Number : STV4100

Function : Ultra-compact low-power 3.3-V terrestrial tuner IC

Manufactures : STMicroelectronics

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STV4100 image

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Description :

STV4100 Ultra-compact low-power 3.3-V terrestrial tuner IC Data Brief Features Description The STV4100 terrestrial tuner is a directconversion (zero-IF) receiver with quadrature outputs intended for digital TV broadcasting. On each VHF and UHF input is a low noise amplifier with both switchable and variable gain to ensure an optimal signal level for the two mixers. Each mixer, which down-converts the signal to baseband, is followed by a low-pass filter and amplifier. The baseband gain is programmable via a dedicated pin. The LO signals are provided by an integrated PLL which contains an on-chip voltage controlled oscillator meeting stringent phase noise requirements. The LO frequencies are programmable. The comparison frequency for the phase/frequency detector is generated by dividing the crystal oscillator reference frequency. The crystal frequency can be from 16 MHz to 31 MHz depending on application. RF-to-baseband direct conversion (IQ interface only) Single 3.3-V DC supply Input frequency range 174 to 230 MHz and 470 to 870 MHz Fully integrated VCO Harmonic rejection mixer stage Fully integrated RF AGC with RF power monitoring Programmable channel filter covers 6 to 8 MHz channel spacing Low external component count Low power consumption (625 mW typical) Temperature range -10° C to 70° C Crystal frequency output to drive the demodulator IC Compatible with 5-V and 3.3-V I2C bus Fully Nordig Unified (versions 1.0.2, 1.0.3, 2.0) compliant DTG (D-Book) compliant Digitenne compliant VFQFPN-32 5x5x1 mm3, exposed pad down ECOPACK, environmentally-friendly package, RoHS (2002/95/EC) compliant. Typical applications ! ! ! Terrestrial set-top box iDTV PCTV RFAGC VHF_IN UHF_IN PLL, dividers DC offset compensation I2C Bus Interface BBAGC BBIP BBIN BBQP BBQN XTI, XTO FREF Amplifier SCL SDA March 2009 Rev 1 1/7 www.st.com 7 For further information contact your local STMicroelectronics sales office. Applications STV4100 1 Applications The STV4100 DVB-T tuner is designed to match optimally to industry-leading STMicroelectronics demodulator ICs such as the STV0362. Figure 1. Applications diagram for DVB-T system STV4100 DVB-T tuner SDA, SCL BBAGC VHFN/P Diplexer UHFN/P BBQN,BBQP QM,QP BBIN,BBIP IM,IP Decoder STV0362 I2 C SDA,SCL SDAT,SCLT AGC_IF D[7:0], CLKOUT, STROUT, D/PN, ERROR AUX_CLK I2 C RFAGCO FREF XTAL_I 16 to 31 MHz RF_LEVEL 2/7 STV4100 Figure 2. Applications diagram without loop-through Applications STV4100 3/7 Applications Figure 3. Applications diagram with loop-through (simplified) STV4100 4/7 STV4100 STV4100 Ordering information 2 Ordering information Table 1. Ordering information Temperature range -10 to 70° C -10 to 70° C Package Packaging Tray Tape and reel Order code STV4100B STV4100BT VFQFPN-32 exposed pad down VFQFPN-32 exposed pad down 5/7 Revision history S […]

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STV4100 Datasheet


 
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