SN761662DBTR

SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 FEATURES • • • • • • • • • • • • Low-Phase-Noise Mixer/Oscillator and PLL Synthesizer VHF-L, VHF-H, UHF Three-Band Local Oscillator I2C Bus Protocol (Bidirectional Data Transmission) 30-V Tuning Voltage Output Four NPN-Type Band-Switch Drivers One Auxiliary-Port, Five-Level ADC RF AGC Detector Circuit Crystal Oscillator Output Programmable Reference Divider Ratio (24/28/50/64/80/128) Standby Mode 5-V Power Supply 38-Pin TSSOP Package APPLICATIONS • • • Digital TV Digital CATV Set-Top Box DBT 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 P5/ADC XTAL1 XTAL2 XTALOUT 1 38 2 37 3 36 4 35 5 34 6 33 7 32 8 9 31 30 10 29 11 28 12 27 13 26 14 25 15 24 16 23 17 22 18 21 19 20 UHF RF IN2 UHF RF IN1 VHI RF IN VLO RF IN BS4 RF GND MIXOUT2 MIXOUT1 NC BUS GND RF AGC AGC FIL2 AGC FIL1 BS3 BS2 BS1 SDA SCL AS P0034-02 DESCRIPTION The SN761662 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, 30-V output tuning amplifier, four NPN band-switch drivers, and is available in a small-outline package. A 15-bit programmable counter and reference divider are controlled by I2C bus protocol. Tuning step frequency is selectable by this reference divider ratio for a crystal oscillator. 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 © 2005, Texas Instruments Incorporated SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 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. MIXOUT1 and MIXOUT2 (pins 31 and 32) withstand 1.5 kV, and all other pins withstand 2 kV, according to the human body model (1.5 kΩ, 100 pF). VHF-L Osc VHF-H Osc IF GND MIX OUT1 MIX OUT2 UHF OSC B2 UHF OSC C2 UHF OSC B1 UHF OSC C1 VHI OSC C VHI OSC B OSC GND VLO OSC C VLO OSC B Functional Block Diagram IF Amp UHF Osc IF OUT1 IF OUT2 VLO RF IN VHF-L Mixer VHF-H Mixer AGC FIL1 RF AGC Detect UHF Mixer AGC FIL2 RF AGC VHI RF IN VCC UHF RF IN1 N.C. UHF RF IN2 CP Programmable Divider VTU RF GND XTAL1 XTAL2 Op Amp XTAL Osc 128/80/64/50/ 28/24 Div Phase Detector Charge Pump XTAL OUT NPN Band Switch Port SCL SDA 2 I C Bus Interface AS BS1 BS2 BS3 BS4 5-Level ADC P5/ADC BUS GND B0089-01 2 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 Pin Assignments Pin Description TERMINAL NAME DESCRIPTION NO. SCHEMATIC AGC FIL1 26 Additional peak-hold capacitor pin Figure 1 AGC FIL2 27 RF AGC LPF capacitor pin Figure 1 AS 20 Address selection input Figure 2 BS1 23 Band-switch1 output Figure 3 BS2 24 Band-switch2 output Figure 3 BS3 25 Band-switch3 output Figure 3 BS4 34 Band-switch4 output Figure 3 BUS GND 29 Serial bus/band-switch ground CP 14 Charge pump output IF GND 10 IF ground IF OUT1 11 IF amplifier output Figure 5 IF OUT2 12 IF amplifier output Figure 5 MIX OUT1 31 Mixer output Figure 6 MIX OUT2 32 Mixer output Figure 6 N.C. 30 No connection OSC GND 3 Oscillator ground P5/ADC 16 Port 5 output/ADC input Figure 7 RF AGC 28 RF AGC output Figure 8 RF GND 33 RF ground SCL 21 Serial clock input Figure 9 SDA 22 Serial data input/output Figure 10 UHF OSC B1 6 UHF oscillator base1 Figure 11 UHF OSC B2 9 UHF oscillator base2 Figure 11 UHF OSC C1 7 UHF oscillator collector1 Figure 11 UHF OSC C2 8 UHF oscillator collector2 Figure 11 UHF RFIN1 37 UHF RF input Figure 12 UHF RFIN2 38 UHF RF input Figure 12 VCC 13 Supply voltage for mixer/oscillator/PLL: 5 V VHI OSC B 4 VHF HIGH oscillator base Figure 13 VHI OSC C 5 VHF HIGH oscillator collector Figure 13 VHI RFIN 36 VHF-H RF input Figure 14 VLO OSC B 1 VHF LOW oscillator base Figure 15 VLO OSC C 2 VHF LOW oscillator collector Figure 15 VLO RFIN 35 VHF-L RF input Figure 18 VTU 15 Tuning voltage amplifier output Figure 4 XTAL1 17 4-MHz crystal oscillator output Figure 16 XTAL2 18 4-MHz crystal oscillator input Figure 16 XTALOUT 19 4-MHz oscillator output Figure 17 Figure 4 3 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 27 30 W 25 W 3 kW 25 kW 20 26 20 pF S0136-01 S0139-01 Figure 1. Figure 2. 15 23 10 W 24 14 25 50 kW 34 S0138-01 S0132-01 Figure 3. Figure 4. 31 20 W 25 W 32 25 W 11 12 25 W 25 W S0131-01 S0141-01 Figure 5. 4 Figure 6. SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 55 W 25 W 1 kW 28 16 S0140-01 S0133-01 Figure 7. Figure 8. 1 kW 25 W 21 1 kW 22 S0136-02 S0137-01 Figure 9. Figure 10. 37 8 7 9 6 3 kW 38 3 kW S0142-03 S0130-01 Figure 11. Figure 12. 5 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 4 36 3 kW 5 3 kW 3 kW S0142-02 S0129-02 Figure 13. Figure 14. 18 17 1 20 W 10 W 2 3 kW 3 kW 50 kW S0134-01 S0129-01 Figure 15. Figure 16. 35 3 kW 25 W 19 S0142-01 S0135-01 Figure 17. 6 Figure 18. SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) Supply voltage, VCC (2) VCC –0.4 V to 6.5 V Input voltage 1, VGND (2) RF GND, OSC GND, BUS GND –0.4 V to 0.4 V Input voltage 2, VVTU (2) VTU –0.4 V to 35 V Other pins –0.4 V to 6.5 V Input voltage 3, VIN (2) TA ≤ 25°C Continuous total dissipation, PD (3) 1276 mW Operating free-air temperature, TA –20°C to 85°C Storage temperature range, Tstg –65°C to 150°C Maximum junction temperature, TJ 150°C Maximum short-circuit time, tSC(max) (1) (2) (3) Each pin to VCC or to GND 10 s 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 10.2 mW/°C for TA ≥ 25°C. RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN Supply voltage, VCC 4.5 Tuning supply voltage, VTU Output current of band switch, IBS One band switch on Output current of port 5, IP5 Operating free-air temperature, TA –20 NOM MAX UNIT 5 5.5 30 33 V 10 mA –5 mA 85 °C V 7 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 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 TEST CONDITIONS MIN ICC1 Supply current 1 ICC2 Supply current 2 One band switch on (IBS = 10 mA) ICC-STBY Standby supply current STBY = 1 VIH High-level input voltage (SCL, SDA) VIL Low-level input voltage (SCL, SDA) IIH High-level input current (SCL, SDA) IIL Low-level input current (SCL, SDA) –10 VPOR Power-on-reset supply voltage (threshold of supply voltage between reset and operation mode) 2.1 TYP MAX UNIT 75 mA 87 mA 8 mA 2.3 V 1.35 V 10 µA µA 2.8 3.5 V I2C INTERFACE VASH Address-select high-input voltage (AS) VCC = 5 V 4.5 5 V VASM1 Address-select mid-input1 voltage (AS) VCC = 5 V 2 3 V VASM2 Address-select mid-input2 voltage (AS) VCC = 5 V 1 1.5 V VASL Address-select low-input voltage (AS) VCC = 5 V 0.5 V IASH Address-select high-input current (AS) 10 µA IASL Address-select low-input current (AS) VADC ADC input voltage See Table 10 IADH ADC high-level input current VADC = VCC IADL ADC low-level input current VADC = 0 V VOL Low-level output voltage (SDA) VCC = 5 V, IOL = 3 mA 0.4 V lSDAH High-level output leakage current (SDA) VSDA = 5.5 V 10 µA fSCL Clock frequency (SCL) 400 kHz tHD-DAT Data hold time 0 µs tBUF Bus free time 1.3 µs tHD-STA Start hold time 0.6 µs tLOW SCL-low hold time 0.6 µs tHIGH SCL-high hold time 0.6 µs tSU-STA Start setup time 0.6 µs tSU-DAT Data setup time 0.1 µs tr SCL, SDA rise time 0.3 µs tf SCL, SDA fall time 0.3 µs tSU-STO Stop setup time 8 µA –10 0 V 10 µA µA –10 100 See timing chart, Figure 19 VCC 0.6 µs SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 ELECTRICAL CHARACTERISTICS, PLL and Band Switch VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C, unless otherwise noted PARAMETER TEST CONDITIONS N Divider ratio 15-bit frequency word fXTAL Crystal oscillator frequency RXTAL = 25 Ω to 300 Ω ZXTAL Crystal oscillator input impedance VXLO XTALOUT output voltage Load = 10 pF/5.1 kΩ, VCC = 5 V, TA = 25°C VVTUL Tuning amplifier low-level output voltage RL = 20 kΩ, VTU = 33 V IVTUOFF Tuning amplifier leakage current Tuning amplifier = off, VTU = 33 V ICP11 ICP10 ICP01 Charge-pump current ICP00 Band-switch port sink current (P5/ADC) VP5ON Band-switch port output voltage (P5/ADC) 0.3 70 Band-switch driver output current (BS1–BS4) IP5 Vp-p CP[1:0] = 00 IBS Band-switch driver leakage current (BS1–BS4) 0.37 140 VCP = 2 V, TA = 25°C IBS = 10 mA IBS = 10 mA, VCC = 5 V, TA = 25°C MHz kΩ 300 PLL locked IBSOFF 0.2 0.46 V 10 µA µA 1.95 –15 V 15 nA 10 mA 3 3.5 UNIT 1.6 CP[1:0] = 01 Charge-pump leakage current Band-switch driver output voltage (BS1–BS4) 4 CP[1:0] = 10 Charge-pump output voltage MAX 32767 600 ICPOFF VBS2 TYP 512 CP[1:0] = 11 VCP VBS1 MIN V 3.9 VBS = 0 V IP5 = –2 mA, VCC = 5 V, TA = 25°C 8 µA –5 mA 0.6 V ELECTRICAL CHARACRTERISTICS, RF AGC VCC = 5 V, TA = 25°C, measured in Figure 20 reference measurement circuit at 50-Ω system, IF = 44 MHz, IF filter characteristics: fpeak = 44 MHz, unless otherwise noted PARAMETER IOAGC0 IOAGC1 RF AGC output current TEST CONDITIONS MIN TYP 900 nA ATC = 1 9 µA T1/ATSS = 0, ATP[2:0] = 000 117 VAGCSP01 T1/ATSS = 0, ATP[2:0] = 001 114 VAGCSP02 T1/ATSS = 0, ATP[2:0] = 010 111 VAGCSP03 T1/ATSS = 0, ATP[2:0] = 011 108 VAGCSP04 T1/ATSS = 0, ATP[2:0] = 100 105 VAGCSP05 T1/ATSS = 0, ATP[2:0] = 101 102 VAGCSP06 T1/ATSS = 0, ATP[2:0] = 110 99 T1/ATSS = 1, ATP[2:0] = 000 112 VAGCSP11 T1/ATSS = 1, ATP[2:0] = 001 109 VAGCSP12 T1/ATSS = 1, ATP[2:0] = 010 106 VAGCSP13 T1/ATSS = 1, ATP[2:0] = 011 103 VAGCSP14 T1/ATSS = 1, ATP[2:0] = 100 100 VAGCSP15 T1/ATSS = 1, ATP[2:0] = 101 97 VAGCSP16 T1/ATSS = 1, ATP[2:0] = 110 94 Start-point IF output level UNIT ATC = 0 VAGCSP00 VAGCSP10 MAX dBµV 9 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 ELECTRICAL CHARACTERISTICS, Mixer, Oscillator, IF Amplifier VCC = 5 V, TA = 25°C, measured in Figure 20 reference measurement circuit at 50-Ω system, IF = 44 MHz, IF filter characteristics: fpeak = 44 MHz (unless otherwise noted) PARAMETER Gc1 Gc3 Gc4 Gc6 Gc7 Gc9 NF1 NF4 NF7 35 (1) Conversion gain (mixer-IF amplifier), fin = 473 MHz VHF-UHF fin = 864 MHz (1) 35 CM1 CM3 CM4 CM6 CM7 CM9 VIFO1 9 fin = 177 MHz 9 fin = 467 MHz 9 fin = 473 MHz 12 fin = 864 MHz 12 1% cross-modulation distortion, VHF-LOW fin = 57 MHz (2) 79 MHz (2) 79 1% cross-modulation distortion, VHF-HIGH fin = 177 MHz (2) 79 fin = 467 MHz (2) 79 fin = 473 MHz (2) 77 fin = 864 MHz (2) 77 fin = 57 MHz 117 fin = 171 MHz 117 fin = 177 MHz 117 fin = 467 MHz 117 fin = 473 MHz 117 fin = 864 MHz 117 ΦPLVL11 fin = 57 MHz, offset = 1 kHz (3) –90 ΦPLVL12 fin = 57 MHz, offset = 10 kHz (4) –95 kHz (5) –85 VIFO3 VIFO4 VIFO6 VIFO7 VIFO9 ΦPLVL31 IF output voltage, VHF-LOW IF output voltage, VHF-HIGH IF output voltage, UHF Phase noise, VHF-LOW fin = 171 MHz, offset = 1 ΦPLVL32 fin = 171 MHz, offset = 10 kHz (4) –95 ΦPLVL41 fin = 177 MHz, offset = 1 kHz (3) –85 ΦPLVL42 ΦPLVL61 Phase noise, VHF-HIGH fin = 177 MHz, offset = 10 kHz (4) –90 fin = 467 MHz, offset = 1 kHz (5) –77 ΦPLVL62 fin = 467 MHz, offset = 10 kHz (4) –90 ΦPLVL71 fin = 473 MHz, offset = 1 kHz (3) –80 ΦPLVL72 ΦPLVL91 ΦPLVL92 (1) (2) (3) (4) (5) 10 Phase noise, UHF dB dB dB 35 9 1% cross-modulation distortion, UHF UNIT 35 fin = 171 MHz fin = 171 MAX 35 fin = 57 MHz Noise figure, UHF NF9 TYP (1) Conversion gain (mixer-IF amplifier), fin = 177 MHz VHF-HIGH fin = 467 MHz (1) Noise figure, VHF-HIGH NF6 MIN 35 Noise figure, VHF-LOW NF3 TEST CONDITIONS (1) Conversion gain (mixer-IF amplifier), fin = 57 MHz VHF-LOW fin = 171 MHz (1) fin = 473 MHz, offset = 10 kHz (4) –85 fin = 864 MHz, offset = 1 kHz (5) –77 fin = 864 MHz, offset = 10 kHz (4) –90 RF input level = 70 dBµV, differential output fundes = fdes ±6 MHz, Pin = 80 dBµV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB CP[1:0] = 10 (CP current 350 µA), RS[2:0] = 011 (reference divider 64) CP[1:0] = 00 (CP current 70 µA), RS[2:0] = 100 (reference divider 128) CP[1:0] = 11 (CP current 600 µA), RS[2:0] = 100 (reference divider 128) dB dB dB dBµV dBµV dBµV dBµV dBµV dBµV dBc/Hz dBc/Hz dBc/Hz SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 Functional Description I2C Bus Mode I2C Write Mode (R/W = 0) Table 1. Write Data Format MSB (1)Address byte (ADB) LSB 1 1 0 0 0 MA1 MA0 R/W = 0 A Divider byte 1 (DB1) 0 N14 N13 N12 N11 N10 N9 N8 A Divider byte 2 (DB2) N7 N6 N5 N4 N3 N2 N1 N0 A Control byte 1 (CB1) 1 0 ATP2 ATP1 ATP0 RS2 RS1 RS0 A CP1 CP0 0 P5 BS4 BS3 BS2 BS1 A 1 1 ATC STBY T3 T2 T1/ATSS T0/XLO A Band-switch byte (BB) Control byte 2 (CB2) (1) A: Acknowledge Table 2. Description of Data Symbols SYMBOL DESCRIPTION MA[1:0] Address-set bits (see Table 3, Address Selection) N[14:0] Programmable counter set bits DEFAULT N14 = N13 = N12 = ... = N0 = 0 N = N14 × 214 + N13 × 213 + ... + N1 × 2 + N0 CP[1:0] Charge-pump current-set bit CP = 1 T[2:0} RF AGC start-point control bits (see Table 4, RF AGC Start Point) ATP[2:0] = 011 RSA, RSB Reference divider ratio-selection bits (see Table 5, Reference Divider Ratio) RSA = 0, RSB = 1 OS Tuning amplifier control bit OS = 0 60 µA (CP = 0); 280 µA (CP = 1) Tuning voltage on (OS = 0) Tuning voltage off, high impedance (OS = 1) BS[4:1] Band-switch control bits BSn = 0: OFF BSn = 0 BSn = 1: ON Band selection by BS[1:2] X BS1 BS2 1 0 0 1 0 1 0 1 VHF-LO VHF-HI UHF Reserved Don't care 11 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 Table 3. Address Selection MA1 MA0 Voltage Applied on AS Input 0 0 0 V to 0.1 VCC 0 1 OPEN, or 0.2 VCC to 0.3 VCC 1 0 0.4 VCC to 0.6 VCC 1 1 0.9 VCC to VCC Table 4. RF AGC Start Point T1/ATSS ATP2 ATP1 ATP0 IFOUT Level, dBµV 0 0 0 0 117 0 0 0 1 114 0 0 1 0 111 0 0 1 1 108 0 1 0 0 105 0 1 0 1 102 0 1 1 0 99 0 1 1 1 Disabled 1 0 0 0 112 1 0 0 1 109 1 0 1 0 106 1 0 1 1 103 1 1 0 0 100 1 1 0 1 97 1 1 1 0 94 1 1 1 1 Disabled Table 5. Reference Divider Ratio RS2 RS1 RS0 Reference Divider Ratio 0 0 0 24 0 0 1 28 0 1 0 50 0 1 1 64 1 0 0 128 1 X 1 80 Table 6. Charge Pump Current 12 CP1 CP0 Charge Pump Current, µA 0 0 70 0 1 140 1 0 350 1 1 600 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 Table 7. Test Bits/XTALOUT Control (1) (1) T3 T2 T1/ATSS T0/XLO Device Operation XTALOUT 4-MHz Output 0 0 X 0 Normal operation Enabled 0 0 X 1 Normal operation Disabled X 1 X X Test mode Not available 1 X X X Test mode Not available RFAGC and XTALOUT are not available in test mode. Example I2C Data Write Sequences Telegram examples: Start-ADB-DB1-DB2-CB1-BB-CB2-Stop Start-ADB-DB1-DB2-Stop Start-ADB-CB1-BB-CB2-Stop Start-ADB-CB1-BB-Stop Start-ADB-CB2-Stop Abbreviations: ADB: Address byte BB: Band-switch byte CB1: Control byte 1 CB2: Control byte 2 DB1: Divider byte 1 DB2: Divider byte 2 Start: Start condition Stop: Stop condition I2C Read Mode (R/W = 1) Table 8. Read Data Format (A: Acknowledge) MSB Address byte (ADB) Status byte (SB) LSB 1 1 0 0 0 MA1 MA0 R/W = 1 A POR FL 1 1 X A2 A1 A0 – Table 9. Description of Data Symbols SYMBOL DESCRIPTION MA[1:0] Address set bits (see Table 3, Address Selection) POR Power-on-reset flag DEFAULT POR = 1 POR set: power on POR reset: end-of-data transmission procedure FL In-lock flag PLL locked (FL = 1), unlocked (FL = 0) A[2:0] Digital data of ADC (see Table 10, ADC Level) Bit P5 must be set to 0. 13 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 Table 10. ADC Level (1) (1) A2 A1 A0 Voltage Applied on ADC Input 1 0 0 0.6 VCC to VCC 0 1 1 0.45 VCC to 0.6 VCC 0 1 0 0.3 VCC to 0.45 VCC 0 0 1 0.15 VCC to 0.3 VCC 0 0 0 0 V to 0.15 VCC Accuracy is 0.03 × VCC. t(High) tr t(Low) SCL thd(STA) tsu(DAT) tf thd(DAT ) tsu(STA) tsu(STO) SDA t(BUF) T0101-01 2 Figure 19. I C Timing Chart 14 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 APPLICATION INFORMATION Reference Measurement Circuit C4 R1 VC1 C3 C37 C1 R30 C35 38 1 VLO OSC B UHF RF IN2 VLO OSC C UHF RF IN1 URF2 C2 L1 37 2 C46 C33 36 3 OSC GND R2 VC2 C11 VC4 VHI RF IN 35 4 R52 L2 VHIRF C32 C45 C6 VHI OSC B VLO RF IN VHI OSC C BS4 VLORF 34 5 BS4 C34 C31 C7 VC3 L4 C15 R4 R32 C8 33 6 UHF OSC B1 RF GND UHF OSC C1 MIXOUT2 32 7 L10 L3 C30 C9 31 8 C12 UHF OSC C2 MIXOUT1 UHF OSC B2 NC L9 R33 R3 30 9 R5 C10 29 10 C36 IF GND R41 BUS GND C13 R15 28 11 IF OUT1 IF OUT1 RF AGC RFAGC C29 R21 R42 C14 27 12 IF OUT2 AGC FIL2 C38 C16 VCC VCC AGC FIL1 C18 C19 R14 26 13 C28 C17 25 14 CP BS3 VTU BS2 P5/ADC BS1 XTAL1 SDA BS3 R6 R8 C20 24 15 TU R9 23 16 C21 BS2 BS1 C22 22 17 P5/ADC R13 SDA C27 X1 21 18 XTAL2 R12 SCL SCL C26 C23 20 19 XTALOUT XTALOUT C24 R10 R11 AS AS C25 C39 S0143-01 NOTE: This application information is advisory and a performance-check is required for actual application circuits. TI assumes no responsibility for the consequences of the use of this circuit nor for any infringement of patent or patent rights of third parties which may result from its use. Figure 20. Reference Measurement Circuit 15 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 APPLICATION INFORMATION (continued) Component Values for Measurement Circuit PART NAME VALUE PART NAME VALUE C1 (VLO OSCB) 1 pF C39 (XTALOUT) 2.2 nF C2 (VLO OSCC) 2 pF C45 (VHI OSC) 7 pF C3 (VLO OSC) 47 pF C46 (URF1) 2.2 nF C4 (VLO OSC) Open L1 (VLO OSC) φ 3,0 mm, 7T, wire 0,32 mm C6 (VHI OSCC) 5 pF L2 (VHI OSC) φ2,0 mm, 3T, wire 0,4 mm C7 (UHF OSCB1) 1 pF L3 (UHF OSC) φ1,8 mm, 3T, wire 0,4 mm C8 (UHF OSCC1) 1 pF L4 (UHF OSC) φ1,8 mm, 3T, wire 0,4 mm C9 (UHF OSCC2) 1 pF L9 (MIXOUT) 680 nH (LK1608R68K-T) C10 (UHF OSCB2) 1 pF L10 (MIXOUT) 680 nH (LK1608R68K-T) C11 (VHI OSC) 51 pF R1 (VLO OSC) 3.3 kΩ C12 (UHF OSC) 10 pF R2 (VHI OSC) 3.3 kΩ C13 (IFOUT) 2.2 nF R3 (UHF OSC) 2.2 kΩ C14 (IFOUT) 2.2 nF R4 (UHF OSC) 1 kΩ C15 (UHF OSC) 100 pF R5 (VTU) 3 kΩ C16 (VCC) 4.7 nF R6 (CP) 47 kΩ C17 (CP) 0.01 µF/50 V R8 (VTU) 20 kΩ C18 (CP) 22 pF/50 V R9 (P5/ADC) Open C19 (VCC) 2.2 nF R10 (XTALOUT) 5.1 kΩ C20 (VTU) 2.2 nF/50 V R11 (AS) 330 Ω C21 (P5/ADC) Open R12 (SCL) 330 Ω C22 (XTAL) 27 pF R13 (SDA) 330 Ω C23 (XTAL) 27 pF R14 (VCC) 0 C24 (XTALOUT) 10 pF R15 (RFAGC) 0 C25 (AS) Open R21 (IFOUT) 1 kΩ C26 (SCL) Open R30 (VLO OSC) 10 C27 (SDA) Open R32 (UHF OSC) 0 C28 (AGCFIL1) 0.1 µF R33 (UHF OSC) 0 C29 (RFAGC) 0.15 µF R41 (IFOUT) 1 kΩ C30 (MIXOUT) 5 pF R42 (IFOUT) 0 C31 (MIXOUT) 2.2 nF R52 (VHI OSC) 3.3 kΩ C32 (VLORF) 2.2 nF U1 SN761662 C33 (VHIRF) 2.2 nF VC1 (VLO OSC) MA2S374 C34 (VHI OSC) 0.5 pF VC2 (VHI OSC) MA2S374 C35 (URF2) 2.2 nF VC3 (UHF OSC) MA2S372 C36 (VTU) Open VC4 (VHI OSC) MA2S372 C37 (VTU) 2.2 nF/50 V X1 4-MHz crystal C38 (RGCFIL2) Open 16 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 Test Circuits DUT SG 50 W 50 W VIN IF OUT1 VLO RF IN (VHI RF IN) Spectrum Analyzer VOUT Diff VOUT IF OUT2 50 W Gc = 20log(VOUT Diff/VIN) = 20log(VOUT/VIN) + 6 50 W S0144-01 Figure 21. VHF-Conversion Gain-Measurement Circuit DUT SG UHF RF IN1 50 W 50 W VIN IF OUT1 UHF RF IN2 Spectrum Analyzer VOUT Diff VOUT IF OUT2 50 W Gc = 20log(VOUT Diff/VIN) = 20log(VOUT/VIN) + 6 50 W S0145-01 Figure 22. UHF-Conversion Gain-Measurement Circuit NF Meter Noise Source DUT B0090-01 Figure 23. Noise-Figure Measurement Circuit Signal Generator fdes: P = 80 dBmV Signal Generator Mix Pad fdes ±6 MHz AM 30%, 1 kHz DUT Modulation Analyzer B0091-01 Figure 24. 1% Cross-Modulation Distortion Measurement Circuit 17 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 TYPICAL CHARACTERISTICS Band-Switch Driver Output Voltage (BS1–BS4) VBS – Band-Switch Driver Output Voltage – V BS OUTPUT CURRENT vs OUTPUT VOLTAGE 5 VCC = 5.5 V VCC = 5 V 4 VCC = 4.5 V 3 2 1 0 −2 −4 −6 −8 −10 −12 −14 −16 −18 −20 IBS – BS Current – mA G001 Figure 25. Band-Switch Driver Output Voltage S-Parameter 1 0 ¥ 50 MHz 430 MHz 1 M0047-01 Figure 26. VLO RFIN, VHI RFIN 18 SN761662 DTV TUNER IC www.ti.com SLES161 – NOVEMBER 2005 TYPICAL CHARACTERISTICS (continued) 1 0 ¥ 440 MHz 660 MHz 1 M0047-02 Figure 27. UHF RFIN 1 60 MHz 0 ¥ 30 MHz 1 M0047-03 Figure 28. IFOUT 19 PACKAGE OPTION ADDENDUM www.ti.com 5-Dec-2011 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) TBD Lead/ Ball Finish Call TI MSL Peak Temp (3) Samples (Requires Login) SN761662DBT OBSOLETE TSSOP DBT 38 Call TI SN761662DBTR ACTIVE TSSOP DBT 38 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR SN761662DBTRG4 ACTIVE TSSOP DBT 38 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 20-Oct-2010 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN761662DBTR Package Package Pins Type Drawing TSSOP DBT 38 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 6.9 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 10.2 1.8 12.0 16.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 20-Oct-2010 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN761662DBTR TSSOP DBT 38 2000 346.0 346.0 33.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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