SN761683B Datasheet | Texas Instruments

FEATURES - Single-Chip Mixer/Oscillator and Phase-Locked Loop (PLL) Synthesizer - Three-Band Local Oscillator and Mixer - Inter-Integrated Circuit (I2C) Bus Protocol (Bidirectional Data Transmission) - 30-V Tuning-Voltage Output - Four NPN-Type Band-Switch (BS) Drivers - Programmable Reference Divider Ratio (512, 640, or 1024) - 5-V Power Supply - 32-Pin Thin Shrink Small-Outline Package (TSSOP) APPLICATIONS - TVs - VCR/DVD Recorders - Set-Top Boxes DESCRIPTION The SN761683B is a synthesized tuner IC designed for TV tuning systems. The circuit consists of a phase-locked loop (PLL) synthesizer, three-band local oscillator and mixer, 30-V output tuning amplifier, and four NPN band-switch drivers, and is available in a small-outline package. A 15-bit programmable counter and reference divider are controlled by inter-integrated circuit (I2C) bus protocol. SN761683B TV TUNER IC SLES180 - MAY 2006 TSSOP PACKAGE (TOP VIEW) VLO OSC B VLO OSC C OSC GND VHI OSC B VHI OSC C UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2 IF GND IF OUT1 IF OUT2 VCC CP VTU XTAL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 UHF RF IN2 31 UHF RF IN1 30 VHF RF IN2 29 VHF RF IN1 28 RF GND 27 MIX OUT2 26 MIX OUT1 25 BS4 24 BS3 23 BS2 22 BS1 21 NC 20 ADC 19 AS 18 SDA 17 SCL - No internal connection Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006, Texas Instruments Incorporated SN761683B TV TUNER IC SLES180 - MAY 2006 .ti. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or...