DIGITAL TV TUNER IC

www.DataSheet4U.com SN761668 DIGITAL TV TUNER IC www.ti.com SLES199 – JANUARY 2007 FEATURES • • • • • • • • • • • • • • Integrated Mixer/Oscillator/PLL and IF GCA VHF-L, VHF-H, UHF 3-Band Local Oscillator RF AGC Detector Circuit External 4-Pin IF Filter Between Mixer Output and IF Amplifier Input I2C Bus Protocol Bidirectional Data Transmission High-Voltage Tuning Voltage Output Four NPN-Type Band-Switch Drivers One Auxiliary Port/5-Level ADC Crystal Oscillator Output Programmable Reference Divider Ratio (24/28/50/64/80/128) Low Distortion IF Gain Controlled Amplifier Standby Mode 5-V Power Supply 44-Pin Thin Shrink Small-Outline Package (TSSOP) DBT PACKAGE (TOP VIEW) VLO OSC B VLO OSC C VHI OSC B VHI OSC C OSC GND UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2 IF GND IF OUT1 IF OUT2 CP VTU VCC IF GCA IN1 IF GCA IN2 IF GCA CTRL IF GCA GND IF GCA OUT2 IF GCA OUT1 P5/ADC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 APPLICATIONS • • • Digital TV Digital CATV Set-Top Box BS4 UHF RF IN1 UHF RF IN2 VHI RF IN VLO RF IN RF GND MIXOUT2 MIXOUT1 IF IN2 IF IN1 RF AGC OUT RF AGC FIL BS3 BS2 BS1 SDA SCL AS BUS GND XTAL OUT XTAL2 XTAL1 DESCRIPTION The SN761668 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems. The circuit consists of a PLL synthesizer, three-band local oscillator and mixer, RF AGC detector circuit, and IF gain-controlled amplifier. The SN761668 is available in a small-outline package. 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 © 2007, Texas Instruments Incorporated SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 www.ti.com FUNCTIONAL BLOCK DIAGRAM UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2 VLO OSC B VLO OSC C VHI OSC B VHI OSC C MIX OUT1 MIX OUT2 OSC GND IF IN1 IF IN2 VHF-L Oscillator VHF-H Oscillator UHF Oscillator IF Amplifier IF OUT1 IF OUT2 IF GND VLO RF IN VHF-L Mixer VHF-H Mixer UHF Mixer RF AGC Detect VHI RF IN UHF RF IN1 UHF RF IN2 Programmable Divider RF GND XTAL1 XTAL2 XTAL OUT NPN Band-Switch Port SCL SDA AS 5-Level ADC I C Bus Interface 2 RF AGC FIL RF AGC OUT CP Operational Amplifier XTAL Oscillator 128/80/64/50/ 28/24 Div Phase Detector Charge Pump VTU VCC IF GCA IF GCA OUT1 IF GCA OUT2 IF GCA GND BUS GND BS4 BS3 P5/ADC BS2 BS1 2 Submit Documentation Feedback IF GCA CTRL IF GCA IN1 IF GCA IN2 www.ti.com SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 TERMINAL FUNCTIONS TERMINAL NAME AS BS1 BS2 BS3 BS4 BUS GND CP IF GCA CTRL IF GCA GND IF GCA IN1 IF GCA IN2 IF GCA OUT1 IF GCA OUT2 IF GND IF IN1 IF IN2 IF OUT1 IF OUT2 MIX OUT1 MIX OUT2 OSC GND P5/ADC RF AGC FIL RF AGC OUT RF GND SCL SDA UHF OSC B1 UHF OSC B2 UHF OSC C1 UHF OSC C2 UHF RF IN1 UHF RF IN2 VCC VHI OSC B VHI OSC C VHI RF IN VLO OSC B VLO OSC C VLO RF IN VTU XTAL1 XTAL2 XTALOUT NO. 27 30 31 32 44 26 13 18 19 16 17 21 20 10 35 36 11 12 37 38 5 22 33 34 39 28 29 6 9 7 8 43 42 15 3 4 41 1 2 40 14 23 24 25 Address selection input Band-switch 1 output Band-switch 2 output Band-switch 3 output Band-switch 4 output BUS ground Charge-pump output IF GCA CTRL voltage inout IF GCA ground IF GCA input 1 IF GCA input 2 IF GCA output 1 IF GCA output 2 IF ground IF amplifier input 1 IF amplifier input 2 IF amplifier output 1 IF amplifier output 2 Mixer output 1 Mixer output 2 Oscillator ground Port-5 output/ADC input RF AGC additional capacitor pin RF AGC output RF ground Serial clock input Serial data input/output UHF oscillator base 1 UHF oscillator base 2 UHF oscillator collector 1 UHF oscillator collector 2 UHF RF input 1 UHF RF input 2 Supply voltage for mixer/oscillator/PLL: 5 V VHF HIGH oscillator base VHF HIGH oscillator collector VHF-H RF input VHF LOW oscillator base VHF LOW oscillator collector VHF-L RF input Tuning voltage amplifier output 4-MHz crystal oscillator output 4-MHz crystal oscillator input 4-MHz crystal oscillator output Figure 17 Figure 17 Figure 18 Figure 19 Figure 19 Figure 20 Figure 3 Figure 21 Figure 21 Figure 22 Figure 13 Figure 14 Figure 15 Figure 15 Figure 15 Figure 15 Figure 16 Figure 16 Figure 10 Figure 11 Figure 12 Figure 7 Figure 7 Figure 8 Figure 8 Figure 9 Figure 9 Figure 5 Figure 5 Figure 6 Figure 6 Figure 3 Figure 4 DESCRIPTION SCHEMATIC Figure 1 Figure 2 Figure 2 Figure 2 Figure 2 Submit Documentation Feedback 3 SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 www.ti.com 3 kW 27 10 W 30 31 32 50 kW 44 Figure 1. AS 14 Figure 2. BS1, BS2, BS3, and BS4 4 kW 18 100 kW 13 Figure 3. CP and VTU Vbias 1 kW 16 1 kW 17 Figure 4. IF GCA CTRL 15 W 20 21 Figure 5. IF GCA IN1 and IF GCA IN2 35 Figure 6. IF GCA OUT1 and IF GCA OUT2 20 W 11 12 36 Figure 7. IF IN1 and IF IN2 Figure 8. IF OUT1 and IF OUT2 4 Submit Documentation Feedback www.ti.com SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 37 38 25 W 22 50 W Figure 9. MIX OUT1 and MIX OUT2 Figure 10. P5/ADC 55 W 25 W 33 20 pF 25 kW 34 Figure 11. RF AGC FIL Figure 12. RF AGC OUT 1 kW 28 29 25 W 1 kW Figure 13. SCL Figure 14. SDA 42 8 7 43 9 3 kW 3 kW 6 Figure 15. UHF OSC B1, UHF OSC B2, UHF OSC C1, and UHF OSC C2 Figure 16. UHF RF IN1 and UHF RF IN2 Submit Documentation Feedback 5 SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 www.ti.com 4 41 3 3 kW 3 kW 3 kW Figure 17. VHI OSC B and VHI OSC C Figure 18. VHI RF IN 2 40 1 3 kW 3 kW 3 kW Figure 19. VLO OSC B and VLO OSC C 24 23 Figure 20. VLO RF IN 20 W 10 W 25 W 25 50 kW Figure 21. XTAL1 and XTAL2 Figure 22. XTAL OUT 6 Submit Documentation Feedback www.ti.com SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 (1) Absolute Maximum Ratings over recommended operating free-air temperature range (unless otherwise noted) MIN VCC VGND VTU VIN PD TA Tstg TJ tSC(max) (1) (2) (3) Supply voltage range Input voltage 1 Input voltage 2 Input voltage 3 (2) (2) (2) (3) (2) MAX 6.5 0.4 35 6.5 1438 85 150 150 10 UNIT V V V V mW °C °C °C s VCC RF GND, OSC GND VTU Other pins TA ≤ 25°C –0.4 –0.4 –0.4 –0.4 –20 –65 Continuous total dissipation Storage temperature range Operating free-air temperature range Maximum junction temperature Maximum short-circuit time Each pin to VCC or to GND Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Voltage values are with respect to the IF GND of the circuit. Derating factor is 11.5 mW/°C for TA ≥ 25°C. Recommended Operating Conditions MIN VCC VTU IBS IP5 TA Supply voltage Tuning supply voltage Output current of band switch Output current of port 5 Operating free-air temperature BS1 – BS4, one band switch on P5/ADC –20 4.5 NOM 5 30 MAX 5.5 33 10 –5 85 UNIT V V mA mA °C This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. IF IN1, IF IN2, MIXOUT1, and MIXOUT2 (Pins 35 – 38) withstand 1.5 kV, and all other pins withstand 2 kV, according to the Human-Body Model (1.5 kΩ, 100 pF). Submit Documentation Feedback 7 SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 www.ti.com Electrical Characteristics – Total Device and Serial Interface VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted) PARAMETER ICC1 ICC2 ICC-STBY VIH VIL IIH IIL VPOR Supply current 1 Supply current 2 Standby supply current High-level input voltage (SCL, SDA) Low-level input voltage (SCL, SDA) High-level input current (SCL, SDA) Low-level input current (SCL, SDA) Power-on-reset supply voltage (threshold of supply voltage between reset and operation mode) Address-select high-input voltage (AS) Address-select mid-input 1 voltage (AS) Address-select mid-input 2 voltage (AS) Address-select low-input voltage (AS) Address-select high-input current (AS) Address-select low-input current (AS) ADC input voltage ADC high-level input current ADC low-level input current Low-level output voltage (SDA) High-level output leakage current (SDA) Clock frequency (SCL) Data hold time Bus free time Start hold time SCL-low hold time SCL-high hold time Start setup time Data setup time Rise time (SCL, SDA ) Fall time (SCL, SDA) Stop setup time 0.6 See Figure 23 0 1.3 0.6 0.6 0.6 0.6 0.1 0.3 0.3 See Table 10 VADC = VCC VADC = 0 V VCC = 5 V, IOL = 3 mA VSDA = 5.5 V 100 –10 0.4 10 400 –10 0 VCC 10 VCC = 5 V VCC = 5 V VCC = 5 V VCC = 5 V –10 2.1 2.8 3.5 One band switch on (IBS = 10 mA) STBY = 1 2.5 1.35 10 TEST CONDITIONS MIN TYP 115 125 9 MAX 140 150 UNIT mA mA mA V V µA µA V I2C Interface VASH VASM1 VASM2 VASL IASH IASL VADC IADH IADL VOL lSDAH fSCL tHD-DAT tBUF tHD-STA tLOW tHIGH tSU-STA tSU-DAT tr tf tSU-STO 4.5 2 1 5 3 1.5 0.5 10 V V V V µA µA V µA µA V µA kHz µs µs µs µs µs µs µs µs µs µs 8 Submit Documentation Feedback www.ti.com SN761668 DIGITAL TV TUNER IC SLES199 – JANUARY 2007 Electrical Characteristics – PLL and Band Switch VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted) PARAMETER N fXTAL ZXTAL VXLO VVTUL IVTUOFF ICP11 ICP10 ICP01 ICP00 VCP ICPOFF IBS VBS1 VBS2 IBSOFF IP5 VP5ON Charge-pump output voltage Charge-pump leakage current Band-switch