The MAX2136A is a low-power global automotive TV tuner. It directly converts a variety of broadcast signals including 3-13 segment ISDB-T, 6/7/8MHz DVB-T/T2, T-DMB/DAB, CTTB, CMMB, and ATSC/ATSC-MH to a low-IF using a broadband I/Q downconverter. The operating frequency range covers the VHF and UHF broadcast TV bands from 44MHz to 891MHz.
The MAX2136A integrates LNAs, RF variable-gain amplifiers (VGAs), VHF and UHF tracking filters, I/Q downconverting mixers, baseband VGAs, and baseband filters. The VGAs typically provide in excess of 120dB of control range. The device also includes fully monolithic VCOs and tank circuits, as well as a complete frequency synthesizer with an on-chip crystal oscillator and output buffer/divider.
The device incorporates a 2-wire (I²C) serial control interface with multiple read and write addresses.
A low-power standby mode is available whereupon the signal path is shut down while leaving the serial control interface and crystal oscillator circuits active. For further power savings, the crystal oscillator can be disabled by placing the device in shutdown mode using the external shutdown pin.
The MAX2136A is available in a 32-pin TQFN package (5mm x 5mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.
Applications
- Automotive TV Systems
- Laptop/Desktop TV Receivers
- Personal Multimedia Players
- Portable LCD TVs
- Portable Navigation Devices
- Tablets
