ADMTV803: VHF/UHF Tuner IC for Multi-Standard Digital TV

The ADMTV803 is a highly integrated CMOS zero-IF conversion tuner IC for multi-standard digital TV such as CMMB (UHF band), DTMB, DVB-H, DVB-T, DAB, T-DMB, ATSC-M/H and ISDB-T (full-seg, 3-seg and 1-seg). The part includes dual RF input bands, VHF and UHF. The building blocks of the ADMTV803 include LNA, RFPGA, I/Q downconversion mixer, bandwidth adjustable low-pass filter, baseband PGA, and fractional-N frequency synthesizer with fully integrated VCO and PLL loop filter. The on-chip low phase noise VCO, along with the high resolution fractional-N frequency synthesizer makes in-band phase noise low enough for mobile TV applications.

The ADMTV803 consumes less than 9.5 mW for DVB-H mode at 10 % duty cycle. By using very small package size (LFCSP, WLCSP), the ADMTV803 is the best solution for mobile TV application especially for mobile phones, notebook PCs, PDAs, etc. where low power consumption is critical.

The part has an I²C serial bus interface. Applications for the ADMTV803 include CMMB (UHF band), DTMB, DVB-H, DVB-T, DAB, T-DMB, ATSC-M/H and ISDB-T (full-seg, 3-seg and 1-seg).

产品应用领域 Applications

CMMB (UHF band) /DTMB/DVB-H/DVB-T/DAB/T-DMB/ATSC-M/H/ ISDB-T (full-seg, 3-seg and 1-seg) mobile and portable TV receivers
VHF/UHF mobile and portable TV receivers

ADMTV803 特点

Single-chip RF tuner IC for Multi-Standard Digital TV applications in VHF(54~245MHz) and UHF(470~862MHz)
Zero-IF architecture
Low noise figure 3 dB
Typical AGC dynamic range: −102 dBm to +10 dBm
Low power consumption in continuous mode
VHF: 92 mW
UHF: 94 mW
See data sheet for which on-chip features are included
Integrated baseband PGA for direct connection to digital demodulators
See data sheet for additional features