SN761644 www.ti.com SLES252 – NOVEMBER 2009 DIGITAL TV TUNER IC Check for Samples: SN761644 FEATURES 1 • • • • • • • • • • • • • • • Integrated Mixer/Oscillator/PLL and IF GCA Mirror Pin Package of SN761640 VHF-L, VHF-H, UHF 3-Band Local Oscillator RF AGC Detector Circuit 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 (24/28/32/64/80/128) IF GCA Enable/Disable Control Selectable digital IFOUT and Analog IFOUT Standby Mode 5-V Power Supply 44-Pin Thin Shrink Small-Outline Package (TSSOP) APPLICATIONS • • • Digital TVs Digital CATVs Set-Top Boxes DBT PACKAGE (TOP VIEW) BS4 UHF RF IN1 UHF RF IN2 VHI RF IN VLO RF IN RF GND MIX OUT2 MIX OUT1 IF IN RF AGC OUT RF AGC BUF BS3 BS2 BS1 SDA SCL AS BUS GND P5/ADC XTAL OUT XTAL2 XTAL1 1 44 2 43 3 42 4 41 5 40 6 39 7 38 8 37 9 36 10 35 11 34 12 33 13 32 14 31 15 30 16 29 17 28 18 27 19 26 20 25 21 24 22 23 VLO OSCB VLO OSC C VHI OSC B VHI OSC C UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2 OSC GND CP VTU IF GND AIF OUT DIF OUT1 DIF OUT2 IF GCA CTRL VCC IF GCA IN1 IF GCA IN2 IF GCA GND IF GCA OUT2 IF GCA OUT1 DESCRIPTION The SN761644 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 SN761644 is available in a small-outline package. 1 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 © 2009, Texas Instruments Incorporated SN761644 SLES252 – NOVEMBER 2009 www.ti.com VHF-L Oscillator VHF-H Oscillator IF IN MIX OUT2 MIX OUT1 UHF OSC C2 UHF OSC B2 UHF OSC B1 UHF OSC C1 VHI OSC C VHI OSC B OSC GND VLO OSC C VLO OSC B FUNCTIONAL BLOCK DIAGRAM IF Amplifier UHF Oscillator DIF OUT1 DIF OUT2 AIF OUT VLO RF IN VHF-L Mixer VHF-H Mixer IF GND UHF Mixer RF AGC OUT RF AGC Detect VHI RF IN RF AGC BUFF UHF RF IN1 UHF RF IN2 CP Programmable Divider RF GND XTAL1 XTAL2 VTU Operational Amplifier XTAL Oscillator 128/80/64/50/ 28/24 Div Phase Detector Charge Pump VCC XTAL OUT NPN Band-Switch Port SCL SDA 2 I C Bus Interface IF GCA IF GCA OUT2 AS IF GCA GND 2 Submit Documentation Feedback IF GCA CTRL IF GCA IN1 IF GCA IN2 BS1 BS2 BS3 BS4 5-Level ADC P5/ADC BUS GND IF GCA OUT1 Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 TERMINAL FUNCTIONS Table 1. TERMINAL NAME DESCRIPTION NO. SCHEMATIC AIF OUT 32 IF amplifier output (analog) Figure 8 AS 17 Address selection input Figure 1 BS1 14 Band switch 1 output Figure 2 BS2 13 Band switch 2 output Figure 2 BS3 12 Band switch 3 output Figure 2 BS4 1 Band switch 4 output Figure 2 BUS GND 18 BUS ground CP 35 Charge-pump output Figure 3 DIF OUT1 31 IF amplifier output 1 Figure 9 DIF OUT2 30 IF amplifier output 2 Figure 9 IF GCA CTRL 29 IF GCA CTRL voltage inout Figure 4 IF GCA GND 25 IF GCA ground IF GCA IN1 27 IF GCA input 1 Figure 5 IF GCA IN2 26 IF GCA input 2 Figure 5 IF GCA OUT1 23 IF GCA output 1 Figure 6 IF GCA OUT2 24 IF GCA output 2 Figure 6 IF GND 33 IF ground IF IN 9 IF amplifier input Figure 7 MIXOUT1 8 Mixer output 1 Figure 10 MIXOUT2 7 Mixer output 2 Figure 10 OSC GND 36 Oscillator ground P5/ADC 19 Port-5 output/ADC input Figure 11 RF AGC BUF 11 RF AGC buffer output Figure 12 RF AGC OUT 10 RF AGC output Figure 13 RF GND 6 RF ground SCL 16 Serial clock input Figure 14 SDA 15 Serial data input/output Figure 15 UHF OSC B1 40 UHF oscillator base 1 Figure 16 UHF OSC B2 37 UHF oscillator base 2 Figure 16 UHF OSC C1 39 UHF oscillator collector 1 Figure 16 UHF OSC C2 38 UHF oscillator collector 2 Figure 16 UHF RF IN1 2 UHF RF input 1 Figure 17 UHF RF IN2 3 UHF RF input 2 Figure 17 VCC 28 Supply voltage VHI OSC B 42 VHF-H oscillator base Figure 18 VHI OSC C 41 VHF-H oscillator collector Figure 18 VHI RF IN 4 VHF-H RF input Figure 19 VLO OSC B 44 VHF-L oscillator base Figure 20 VLO OSC C 43 VHF-L oscillator collector Figure 20 VLO RF IN 5 VHF-L RF input Figure 21 VTU 34 Tuning voltage amplifier output Figure 3 XTAL1 22 4-MHz crystal oscillator Figure 22 XTAL2 21 4-MHz crystal oscillator Figure 22 XTALOUT 20 4-MHz crystal oscillator buffer output Figure 23 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 3 SN761644 SLES252 – NOVEMBER 2009 www.ti.com 100k 500 1 17 10 12 50k 13 14 Figure 1. AS Figure 2. BS1, BS2, BS3, and BS4 1k 34 29 100k 25 35 25 Figure 3. CP and VTU Figure 4. IF GCA CTRL Vbias 1k 1k 26 27 15 23 24 Figure 5. IF GCA IN1 and IF GCA IN2 Figure 6. IF GCA OUT1 and IF GCA OUT2 2k 25 1k A 10 32 25 1k 9 1k Figure 7. IF IN Figure 8. AIF OUT 25 7 25 8 10 A 30 31 Figure 9. DIF OUT1 and DIF OUT2 4 Figure 10. MIXOUT1 and MIXOUT2 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 25 25 50 11 19 Figure 11. P5/ADC Figure 12. RF AGC BUF 10 1k 16 Figure 13. RF AGC OUT Figure 14. SCL 38 25 39 1k 15 20 20 37 40 8k 8k Figure 15. SDA 2 Figure 16. UHF OSC B1, UHF OSC B2, UHF OSC C1, and UHF OSC C2 41 3 40 3k 42 8k 8k Figure 17. UHF RF IN1 and UHF RF IN2 Figure 18. VHI OSC B and VHI OSC C 43 4 20 3k 44 8k 8k Figure 19. VHI RF IN Figure 20. VLO OSC B and VLO OSC C Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 5 SN761644 SLES252 – NOVEMBER 2009 www.ti.com 22 21 5 10 20 3k 50k Figure 21. VLO RF IN Figure 22. XTAL1 and XTAL2 50 20 Figure 23. XTALOUT 6 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 ABSOLUTE MAXIMUM RATINGS (1) over recommended operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range (2) VCC –0.4 6.5 V VGND Input voltage range 1 (2) RF GND, OSC GND –0.4 0.4 V VVTU Input voltage range 2 (2) VTU –0.4 35 V VIN Input voltage range 3 (2) Other pins –0.4 PD Continuous total dissipation TA Operating free-air temperature range –20 85 °C Tstg Storage temperature range –65 150 °C TJ Maximum junction temperature 150 °C tSC(max) Maximum short-circuit time 10 s (1) (2) (3) (3) TA ≤ 25°C 6.5 1438 Each pin to VCC or to GND UNIT V mW 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 Supply voltage VCC VVTU Tuning supply voltage VTU IBS Output current of band switch BS1 – BS4, one band switch on IP5 Output current of port 5 P5/ADC TA Operating free-air temperature 4.5 –20 NOM MAX UNIT 5 5.5 30 33 V 10 mA –5 mA 85 °C V xxx 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. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric chagnes could cause the device not to meet its published specifications. IF IN1, MIXOUT1, and MIXOUT2 (pins 7–9) 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 Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 7 SN761644 SLES252 – NOVEMBER 2009 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 TEST CONDITIONS MIN TYP MAX UNIT ICC1 Supply current 1 BS[1:4] = 0100, IFGCA disabled 90 120 mA ICC2 Supply current 2 BS[1:4] = 0100, IFGCA enabled 115 145 mA ICC3 Supply current 3 BS[1:4] = 0100, IFGCA enabled, IBS = 10 mA 125 155 mA ICC-STBY Standby supply current BS[1:4] = 1100 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 9 mA 2.3 V 1.05 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-input 1 voltage (AS) VCC = 5 V 2 3 V VASM2 Address-select mid-input 2 voltage (AS) VCC = 5 V 1 1.5 V VASL Address-select low-input voltage (AS) VCC = 5 V IASH Address-select high-input current (AS) IASL Address-select low-input current (AS) VADC ADC input voltage See Table 11 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 0.9 μs tBUF Bus free time 1.3 μs tHD-STA Start hold time 0.6 μs tLOW SCL-low hold time 1.3 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 Rise time (SCL, SDA ) 0.3 μs tf Fall time (SCL, SDA) 0.3 μs tSU-STO Stop setup time 8 0.5 V 50 μA μA –10 0 0 0.6 Submit Documentation Feedback V 10 μA μA –10 100 See Figure 24 VCC μs Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 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 = 30 V IVTUOFF Tuning amplifier leakage current Tuning amplifier = off, VTU = 30 V ICP10 Charge-pump current TYP 512 0.2 0.48 Vp-p 0.3 CP[2:0] = 010 350 CP[2:0] = 001 140 ICP00 CP[2:0] = 000 ICP100 CP[2:0] = 100, Mode = 1 900 1.95 PLL locked ICPOFF Charge-pump leakage current VCP = 2 V, TA = 25°C IBS Band switch driver output current (BS1–BS4) VBS1 VBS2 Band switch driver output voltage (BS1–BS4) IBSOFF Band switch driver leakage current (BS1–BS4) IP5 Band switch port sink current (P5/ADC) VP5ON Band switch port output voltage (P5/ADC) MHz kΩ 600 Charge-pump output voltage UNIT 2.4 CP[2:0] = 011 VCP MAX 32767 4 1.6 ICP11 ICP01 MIN 0.46 V 10 μA μA 70 –15 IBS = 10 mA V 15 nA 10 mA 3 IBS = 10 mA, VCC = 5 V, TA = 25°C 3.5 V 3.7 8 μA –5 mA 0.6 V VBS = 0 V IP5 = –2 mA, VCC = 5 V, TA = 25°C RF AGC (1) VCC = 5 V, TA = 25°C, measured in Figure 25 reference measurement circuit at 50-Ω system, IF = 44 MHz, IF filter characteristics: fpeak = 44 MHz (unless otherwise noted) PARAMETER IOAGC0 IOAGC1 TEST CONDITIONS MIN ATC = 0 RF AGCOUT output source current TYP MAX UNIT 300 nA μA ATC = 1 9 IOAGCSINK RF AGCOUT peak output sink current ATC = 0 100 VOAGCH RFAGCOUT output high voltage (max level) ATC = 1 VOAGCL RFAGCOUT output low voltage (min level) ATC = 1 0.3 V IAGCBUF RFAGCBUF output current ATC = 0 1.5 mA VOAGCBFH RFAGCBUF output high voltage (max level) ATC = 1 VOAGCBFL RFAGCBUF output low voltage (min level) ATC = 1 0.3 VAGCSP00 ATP[2:0] = 000 114 VAGCSP01 ATP[2:0] = 001 112 VAGCSP02 ATP[2:0] = 010 110 VAGCSP03 3.5 4 4 ATP[2:0] = 011 108 VAGCSP04 ATP[2:0] = 100 106 VAGCSP05 ATP[2:0] = 101 104 VAGCSP06 ATP[2:0] = 110 102 (1) Start-point IF output level 3.5 μA 4.5 V 4.5 V V dBμV When AISL=1, RF AGC function is not available at VHF-L band (output level is undefined). Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 9 SN761644 SLES252 – NOVEMBER 2009 www.ti.com Mixer, Oscillator, IF Amplifier (DIF OUT) VCC = 5 V, TA = 25°C, measured in Figure 25 reference measurement circuit at 50-Ω system, IF = 44 MHz, IF filter characteristics: fpeak = 44 MHz (unless otherwise noted) PARAMETER GC1D Conversion gain (mixer-IF amplifier), VHF-LOW GC3D GC4D Conversion gain (mixer-IF amplifier), VHF-HIGH GC6D GC7D Conversion gain (mixer-IF amplifier), UHF GC9D NF1D Noise figure, VHF-LOW NF3D NF4D NF7D CM1D CM3D CM4D CM6D CM7D VIFO1D VIFO4D VIFO7D ΦPLVL1D ΦPLVL3D ΦPLVL4D ΦPLVL6D ΦPLVL7D ΦPLVL9D 10 35 fin = 467 MHz (1) 35 fin = 473 MHz (1) 35 fin = 864 MHz (1) 35 fin = 57 MHz 9 fin = 171 MHz 9 10 fin = 864 MHz 12 Input voltage causing 1% cross-modulation distortion, VHF-LOW fin = 57 MHz (2) 79 fin = 171 MHz (2) 79 Input voltage causing 1% cross-modulation distortion, VHF-HIGH fin = 177 MHz (2) 79 fin = 467 MHz (2) 79 fin = 473 MHz (2) 77 (2) 77 IF output voltage, UHF VIFO9D fin = 177 MHz (1) fin = 473 MHz IF output voltage, VHF-HIGH VIFO6D 35 9 IF output voltage, VHF-LOW VIFO3D 35 fin = 171 MHz (1) 10 Input voltage causing 1% cross-modulation distortion, UHF CM9D TYP fin = 467 MHz Noise figure, UHF NF9D fin = 57 MHz (1) fin = 177 MHz Noise figure, VHF-HIGH NF6D (1) (2) (3) (4) TEST CONDITIONS Phase noise, VHF-LOW Phase noise, VHF-HIGH Phase noise, UHF fin = 864 MHz fin = 57 MHz 117 fin = 171 MHz 117 fin = 177 MHz 117 fin = 467 MHz 117 fin = 473 MHz 117 fin = 864 MHz 117 fin = 57 MHz (3) –90 fin = 171 MHz (4) –85 fin = 177 MHz (3) –85 (4) –77 fin = 473 MHz (3) –80 fin = 864 MHz (4) –77 fin = 467 MHz UNIT dB dB dB dB dB dB dBμV dBμV dBμV dBμV dBμV dBμV dBc/Hz dBc/Hz dBc/Hz IF = 44 MHz, RF input level = 70 dBμV, differential output fundes = fdes ±6 MHz, Pin = 70 dBμV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB Offset = 1 kHz, CP current = 350 μA, reference divider = 64 Offset = 1 kHz, CP current = 900 μA, reference divider = 64 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 Mixer, Oscillator, IF Amplifier (AIF OUT) VCC = 5 V, TA = 25°C, measured in Figure 25 reference measurement circuit at 50-Ω system, IF = 45.75 MHz, IF filter characteristics: fpeak = 44 MHz (unless otherwise noted) PARAMETER GC1A GC3A GC4A GC6A GC7A GC9A NF1A NF3A NF4A NF6A NF7A NF9A CM1A CM3A CM4A CM6A CM7A CM9A VIFO1A VIFO3A VIFO4A VIFO6A VIFO7A VIFO9A ΦPLVL1A ΦPLVL3A ΦPLVL4A ΦPLVL6A ΦPLVL7A ΦPLVL9A (1) (2) (3) TEST CONDITIONS Conversion gain (mixer-IF amplifier), VHF-LOW Conversion gain (mixer-IF amplifier), VHF-HIGH Conversion gain (mixer-IF amplifier), UHF Noise figure, VHF-LOW fin = 55.25 MHz (1) TYP 29 fin = 169.25 MHz (1) 29 fin = 175.25 MHz (1) 29 fin = 465.25 MHz (1) 29 fin = 471.25 MHz (1) 29 fin = 862.25 MHz (1) 29 fin = 55.25 MHz 9 fin = 169.25 MHz 9 fin = 175.25 MHz 9 fin = 465.25 MHz 10 fin = 471.25 MHz 10 fin = 862.25 MHz 12 Input voltage causing 1% cross-modulation distortion, VHF-LOW fin = 55.25 MHz (2) 79 fin = 169.25 MHz (2) 79 Input voltage causing 1% cross-modulation distortion, VHF-HIGH fin = 175.25 MHz (2) 79 fin = 465.25 MHz (2) 79 fin = 471.25 MHz (2) 79 (2) 77 Noise figure, VHF-HIGH Noise figure, UHF Input voltage causing 1% cross-modulation distortion, UHF IF output voltage, VHF-LOW IF output voltage, VHF-HIGH IF output voltage, UHF Phase noise, VHF-LOW Phase noise, VHF-HIGH Phase noise, UHF fin = 862.25 MHz fin = 55.25 MHz 117 fin = 169.25 MHz 117 fin = 175.25 MHz 117 fin = 465.25 MHz 117 fin = 471.25 MHz 117 fin = 862.25 MHz 117 fin = 55.25 MHz (3) –95 fin = 169.25 MHz (3) –95 fin = 175.25 MHz (3) –90 (3) –90 fin = 471.25 MHz (3) –85 fin = 862.25 MHz (3) –90 fin = 465.25 MHz UNIT dB dB dB dB dB dB dBμV dBμV dBμV dBμV dBμV dBμV dBc/Hz dBc/Hz dBc/Hz IF = 44 MHz, RF input level = 70 dBμV fundes = fdes ±6 MHz, Pin = 70 dBμV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB Offset = 10 kHz, CP current = 70 μA, reference divider = 128 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 11 SN761644 SLES252 – NOVEMBER 2009 www.ti.com IF Gain Controlled Amplifier VCC = 5 V, TA = 25°C, measured in Figure 25 reference measurement circuit at 50-Ω system, IF = 44 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IIFGCA Input current (IF GCA CTRL) VIFGCA = 3 V 60 μA VIFGCAMAX Maximum gain control voltage Gain maximum 3 VCC V VIFGCAMIN Minimum gain control voltage Gain minimum 0 0.2 GIFGCAMAX Maximum gain VIFGCA = 3 V 65 dB GIFGCAMIN Minimum gain VIFGCA = 0 V –1 dB GCRIFGCA Gain control range VIFGCA = 0 V to 3 V 66 dB VIFGCAOUT Output voltage Single-ended output, VIFGCA = 3 V 2.1 Vp-p NFIFGCA Noise figure VIFGCA = 3 V 11 dB IM3IFGCA Third order intermodulation distortion fIFGCAIN1 = 43 MHz, fIFGCAIIN2 = 44 MHz, VIFGCAOUT = –2 dBm, VIFGCA = 3 V –50 dBc IIP3IFGCA Input intercept point VIFGCA = 0 V 11 dBm RIFGCAIN Input resistance (IF GCA IN1, IF GCA IN2) 1 kΩ RIFGCAOUT Output resistance (IF GCA OUT1, IF GCA OUT2) 25 Ω 12 Submit Documentation Feedback 30 V Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 FUNCTIONAL DESCRIPTION I2C Bus Mode I2C Write Mode (R/W = 0) Table 2. Write Data Format MSB LSB Address byte (ADB) 1 1 0 0 0 MA1 MA0 R/W = 0 A (1) Divider byte 1 (DB1) 0 N14 N13 N12 N11 N10 N9 N8 A (1) Divider byte 2 (DB2) N7 N6 N5 N4 N3 N2 N1 N0 A (1) Control byte 1 (CB1) 1 0 ATP2 ATP1 ATP0 RS2 RS1 RS0 A (1) CP1 CP0 AISL P5 BS4 BS3 BS2 BS1 A (1) 1 1 ATC MODE T3/DISGCA T2/IFDA T1/CP2 T0/XLO A (1) Band switch byte (BB) Control byte 2 (CB2) (1) A : acknowledge Table 3. Write Data Symbol Description SYMBOL DESCRIPTION MA[1:0] Address-set bits (see Table 4) N[14:0] Programmable counter set bits DEFAULT N14 = N13 = N12 = ... = N0 = 0 N = N14 × 214 + N13 × 213 + ... + N1 × 2 + N0 ATP[2:0] RF AGC start-point control bits (see Table 5) ATP[2:0] = 000 RS[2:0] Reference divider ratio-selection bits (see Table 6) RS[2:0] = 000 CP[1:0] Charge-pump current-set bit (see Table 7) CP[1:0] = 00 AISL (1) RF AGC detector input selection bit AISL = 0 AISL = 0: IF amplifier AISL = 1: Mixer output P5 Port output/ADC input control bit P5 = 0 P5 = 0: ADC INPUT P5 = 1: Tr = ON BS[4:1] Band switch control bits BSn = 0 BSn = 0: Tr = OFF BSn = 1: Tr = ON Band selection by BS[1:2] ATC BS1 BS2 1 0 0 1 0 1 0 1 VHF-LO VHF-HI UHF Standby mode/stop MOP function (XTALOUT is available in standby mode) RF AGC current-set bit ATC = 0 ATC = 0: Current = 300 nA ATC = 1: Current = 9 μA Mode T3/DISGCA T2/IFDA T1/CP2 T0/XLO (1) Mode =0: IFGCA enabled, DIFOUT1, 2 selected MODE = 0 T3/DISGCA, T2/IFDA, T1/CP2, T0/XLO are Test bits and XTALOUT control bit T[3:0] = 0000 (see Table 8) Mode =1 T3/DISGCA = 0 : IF GCA enabled T3/DISGCA = 1 : IF GCA disabled T2/IFDA = 0 : DIFOUT1, 2 selected T2/IFDA = 1 : AIFOUT selected T1/CP2 : lcp control bit, See Table 7 T0/XLO = 0 : XTALOUT enabled T0/XLO = 1 : XTALOUT disabled When AISL = 1, RF AGC function is not available at VHF-L band (Output level is undefined.) Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 13 SN761644 SLES252 – NOVEMBER 2009 www.ti.com Table 4. Address Selection MA1 MA0 VOLTAGE APPLIED ON AS INPUT 0 0 0 V to 0.1 VCC (Low) 0 1 OPEN, or 0.2 VCC to 0.3 VCC (Mid2) 1 0 0.4 VCC to 0.6 VCC (Mid1) 1 1 0.9 VCC to VCC (High) Table 5. RF AGC Start Point (1) (1) ATP2 ATP1 ATP0 IFOUT LEVEL (dBμV) 0 0 0 114 0 0 1 112 0 1 0 110 0 1 1 108 1 0 0 106 1 0 1 104 1 1 0 102 1 1 1 Disabled When AISL=1, RF AGC function is not available at VHF-L band (output level is undefined). Table 6. Reference Divider Ratio RS2 RS1 RS0 REFERENCE DIVIDER RATIO 0 0 0 24 0 0 1 28 0 1 0 32 0 1 1 64 1 0 0 128 1 X 1 80 Table 7. Charge-Pump Current 14 MODE CP2 CP1 CP0 CHARGE PUMP CURRENT (μA) X 0 0 0 70 X 0 0 1 140 X 0 1 0 350 X 0 1 1 600 1 1 0 0 900 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 Table 8. Test Bits/XTALOUT Control (1) (1) XTALOUT 4-MHz OUTPUT MODE T3/DISGCA T2/IFDA T1/CP2 T0/XLO DEVICE OPERATION 0 0 0 0 0 Normal operation Enabled 0 0 0 0 1 Normal operation Disabled 1 X X X 0 Normal operation Enabled 1 X X X 1 Normal operation Disabled 0 X 1 X X Test mode Not available 0 1 X X X Test mode Not available RFAGC and XTALOUT are not available in test mode. I2C Read Mode (R/W = 1) Table 9. Read Data Format MSB Address byte (ADB) Status byte (SB) (1) LSB 1 1 0 0 0 MA1 MA0 R/W = 1 A (1) POR FL 1 1 X A2 A1 A0 – A : acknowledge Table 10. Read Data Symbol Description SYMBOL DESCRIPTION MA[1:0] Address-set bits (see Table 4) POR Power-on reset flag DEFAULT POR = 1 POR set: power on POR reset: end-of-data transmission procedure FL (1) In-lock flag A[2:0] Digital data of ADC (see Table 11) PLL locked (FL=1), Unlocked (FL=0) Bit P5 must be set to 0. (1) Lock detector works by using phase error pulse at the phase detector. Lock flag (FL) is set or reset according to this pulse width disciminator. Hence unstableness of PLL may cause the lock detect circuit to malfunction. In order to stable PLL, it is required to evaluate application circuit in various condition of loop-gain (loo-p filter, CP current), and to verify with whole conditions of actual application. Table 11. Address Selection (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 to 0.15 VCC Accuracy is 0.03 x VCC. Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 15 SN761644 SLES252 – NOVEMBER 2009 www.ti.com 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 t HD STA t SU STA - tHIGH t F SCL t SUDAT tLOW t SUSTO - tR SDA t HD DAT tBUF Figure 24. I2C Timing Chart 16 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 APPLICATION INFORMATION 1 BS4 BS4 VLO OSC B 44 R5 C2 C37 UHF RF IN1 2 R36 UHF RF IN1 VLO OSC C L1 43 C3 R2 C39 C40 VHI RF IN R37 VLO RF IN C42 R38 3 UHF RF IN2 VHI OSC B 42 4 VHI RF IN VHI OSC C 41 R7 VC2 C11 5 VLO RF IN UHF OSC B1 L2 C12 C4 R3 C5 40 L4 6 RF GND UHF OSC C1 VC3 39 C14 L3 L6 C7 L11 7 MIX OUT2 UHF OSC C2 L10 8 MIX OUT1 9 IF IN UHF OSC B2 R8 38 C13 C47 R42 R6 VC4 C6 C49 C9 C10 R1 C1 VC1 37 R4 C8 C15 R9 R10 L5 OSC GND 36 C16 C19 C18 10 RF AGC OUT RF AGC OUT CP (See Note A) 35 R12 C51 R11 11 RF AGC BUFF RF AGC BUFF OUT VTU 34 VTU C17 C52 BS3 12 BS3 IF GND 33 BS2 13 BS2 AIF OUT 32 BS1 14 BS1 DIF OUT1 31 15 SDA DIF OUT2 30 16 SCL IF GCA CTRL 29 C20 C21 R48 SDA AIF OUT R15 R21 DIF OUT1 C23 R17 R19 C62 R49 SCL C30 17 AS AS VCC C56 28 C65 C64 IF GCA CTRL R46 C63 R50 VCC C26 18 BUS GND IF GCA IN1 27 19 P5/ADC IF GCA IN2 26 IF GCA GND 25 IF GCA OUT2 24 C61 R24 C28 P5/ADC IF GCA IN1 R25 R23 XTAL OUT R47 20 XTAL OUT C57 C58 21 XTAL2 C32 R28 R30 C34 R31 C59 X1 22 XTAL1 IF GCA OUT1 23 R34 IF GCA OUT1 C60 A. To prevent abnormal oscillation, connect C16, which does not affect a PLL. B. This application information is advisory and performance-check is required at actual application circuits. TI assumes no responsibility for the consequences of use of this circuit, such as an infringement of intellectual property rights or other rights, including patents, of third parties. Figure 25. Reference Measurement Circuit Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 17 SN761644 SLES252 – NOVEMBER 2009 www.ti.com Table 12. Component Values for Measurement Circuit (1) PARTS NAME VALUE PARTS NAME VALUE C1 (VLO OSC B) 1 pF L1 (VLO OSC) 3.0 mm, 7T, wire 0.32 mm C2 (VLO OSC C) 2 pF L2 (VHI OSC) 2.0 mm, 3T, wire 0.4 mm C3 (VHI OSC B) 7 pF L3 (UHF OSC) 1.8 mm, 3T, wire 0.4 mm C4 (VHI OSC C) 5 pF L4 (UHF OSC) 1.8 mm, 3T, wire 0.4 mm C5 (UHF OSCB1) 1.5 pF L5 (MIX OUT) 680 nH (LK1608R68K-T) C6 (UHF OSCC1) 1 pF L6 (MIX OUT) 680 nH (LK1608R68K-T) C7 (UHF OSCC2) 1 pF L10 (MIX OUT) Short C8 (UHF OSCB2) 1.5 pF L11 (MIX OUT) Short C9 (VLO OSC) OPEN R1(VLO OSC B) 0 C10(VLO OSC) 43 pF R2 (VHI OSC B) 4.7 Ω C11 (VHI OSC) 51 pF R3 (UHF OSC B1) 4.7 Ω C12 (VHI OSC) 0.5 pF R4 (UHF OSC B2) 0 C13 (UHF OSC) 10 pF R5 (VLO OSC) 3.3 kΩ C14 (UHF OSC) 100 pF R6 (VHI OSC) 3.3 kΩ C15 (VTU) 2.2 nF/50 V R7 (VHI OSC) 3.3 kΩ C16 (CP) 150 pF/50 V R8 (UHF OSC) 1 kΩ C17 (VTU) 2.2 nF/50 V R9 (UHF OSC) 2.2 k C18(CP) 0.01 u/50 V R10 (VTU) 3 kΩ C19(CP) 22 pF/50 V R11 (VTU) 20 kΩ C20 (AIF OUT) 2.2 nF R12 (CP) 47 kΩ C21 (DIF OUT1) 2.2 nF R15 (DIF OUT1) 200 Ω C23 (DIF OUT2) 2.2 nF R17 (DIF OUT2) 200 Ω C26 (IF GCA IN1) 2.2 nF R19 (DIF OUT2) 50 Ω C28 (IF GCA IN2) 2.2 nF R21 (DIF OUT1) 0 C30 (VCC) 0.1 uF R23 (P5/ADC) Open C32 (IF GCA OUT1) 2.2 nF R24 (IF GCA IN1) (50 Ω) C34 (IF GCA OUT2) 2.2 nF R25 (IF GCA IN2) 0 C37 (UHF RF IN1) 2.2 nF R28 (IF GCA OUT1) 200 Ω C39 (UHF RFIN2) 2.2 nF R30 (IF GCA OUT1) 50 Ω C40 (VHI RF IN) 2.2 nF R31 (IF GCA OUT2) 200 Ω C42 (VLO RF IN) 2.2 nF R34 (IF GCA OUT2) 0 C47 (MIX OUT) 6 pF R36 (UHF RF IN1) (50 Ω) C49 (MIX OUT) 2.2 nF R37 (VHI RF IN) (50 Ω) C51 (RF AGC OUT) 0.15 uF R38 (VLO RF IN) (50 Ω) C52 (RF AGC BUF) Open R42 (MIX OUT) 0 C56 (IFGCA CTRL) 0.1 μF R46 (IFGCA CTRL) 0 C57 (XTAL OUT) 0.01 uF R47 (XTAL OUT) 5.1 kΩ C58 (XTAL OUT) 10 pF R48 (SDA) 330 Ω C59(XTAL) 27 pF R49 (SCL) 330 Ω C60 (XTAL) 27 pF R50 (AS) Open C61 (VCC) 2.2 nF VC1 (VLO OSC) MA2S374 C62 (SDA) Open VC2 (VHI OSC) MA2S374 C63 (SCL) Open VC3 (UHF OSC) MA2S372 C64 (AS) Open VC4 (VHI OSC) MA2S372 C65 (AS) 22 pF X1 4-MHz crystal (1) 18 IF frequency = 44 MHz Local frequency range : VHF-LOW=101~215 MHz, VHF-HIGH: 221~511 MHz, UHF: 517~908 MHz Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 APPLICATION INFORMATION (CONTINUED) Test Circuits DUT SG 50 W 50 W VIN VLO RF IN (VHI RF IN) DIF OUT1 Spectrum Analyzer VOUT Diff 200 W VOUT DIF OUT2 50 W Gv = 20log(VOUT Diff/VIN) = 20log(VOUT/VIN) + 6 + 14 250 W Figure 26. VHF-Conversion Gain-Measurement Circuit (at DIFOUT) DUT SG 50 W 50 W VIN VLO RF IN (VHI RF IN) Spectrum Analyzer AIFOUT Gv = 20log(VOUT/VIN) VOUT 50 W Figure 27. VHF-Conversion Gain Measurement Circuit (at AIFOUT) DUT SG UHF RF IN1 50 W 50 W VIN DIF OUT1 UHF RF IN2 VOUT Diff 200 W VOUT DIF OUT2 Spectrum Analyzer 50 W Gv = 20log(VOUT Diff/VIN) = 20log(VOUT/VIN) + 6 + 14 250 W Figure 28. UHF-Conversion Gain-Measurement Circuit (at DIFOUT) DUT SG UHFRF IN1 50 W 50 W VIN Spectrum Analyzer AIFOUT UHFRF IN2 Gv = 20log(VOUT/VIN) VOUT 50 W Figure 29. UHF-Conversion Gain Measurement Circuit (at AIFOUT) Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 19 SN761644 SLES252 – NOVEMBER 2009 www.ti.com DUT SG IFGCAIN1 50 W 50 W VIN IFGCAIN2 IFGCAOUT1 VOUT IFGCAOUT2 IFGCACTRAL Spectrum Analyzer VOUT Diff 200 W 50 W Gv = 20log(VOUT Diff/VIN) = 20log(VOUT/VIN) + 6 + 14 250 W DC Power Source Figure 30. IF GCA Gain Measurement Circuit NF Meter Noise Source DUT Figure 31. Noise-Figure Measurement Circuit Signal Generator fdes: P = 70 dBmV Signal Generator Mix Pad fdes ±6 MHz AM 30%, 1 kHz DUT Modulation Analyzer Figure 32. 1% Cross-Modulation Distortion Measurement Circuit 20 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 TYPICAL CHARACTERISTICS Band Switch Driver Output Voltage (BS1–BS4) BS OUTPUT CURRENT vs OUTPUT VOLTAGE Band Switch Output Voltage – V 5.0 4.5 VCC = 5.5 V 4.0 VCC = 5.0 V 3.5 VCC = 4.5 V 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 2 4 6 8 10 12 14 16 18 20 Band Switch Current – mA Figure 33. Band Switch Driver Output Voltage 70 60 50 Vcc=5.5V Gain [dB] 40 Vcc=5.0V Vcc=4.5V 30 20 10 0 -10 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IF GCA CTRL voltage [V] Figure 34. IF GCA Gain vs Control Voltage-1 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 21 SN761644 SLES252 – NOVEMBER 2009 www.ti.com TYPICAL CHARACTERISTICS (continued) 70 60 Gain (dB) 85°C –20°C 50 25°C 40 30 20 10 0 -10 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 IF GCA CTRL Voltage (V) Figure 35. IF GCA Gain vs Control Voltage-2 S-Parameter 40 40MHz MHz 500 500MHz MHz Figure 36. VLO RFIN, VHI RFIN 22 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 TYPICAL CHARACTERISTICS (continued) 900 500MHz MHz 350 40MHz MHz Figure 37. UHF RFIN 60 MHz 30 MHz 500MHz Figure 38. DIFOUT Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 23 SN761644 SLES252 – NOVEMBER 2009 www.ti.com TYPICAL CHARACTERISTICS (continued) 60 MHz 30 MHz 500MHz Figure 39. AIFOUT 20 MHz 70 MHz 500MHz 40MHz Figure 40. IF GCA IN 24 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 SN761644 www.ti.com SLES252 – NOVEMBER 2009 TYPICAL CHARACTERISTICS (continued) 70 MHz 20 MHz 500MHz 40MHz Figure 41. IF GCAOUT Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): SN761644 25 PACKAGE OPTION ADDENDUM www.ti.com 31-Mar-2012 PACKAGING INFORMATION Orderable Device SN761644DBTR Status (1) NRND Package Type Package Drawing TSSOP DBT Pins Package Qty 44 2000 Eco Plan (2) Green (RoHS & no Sb/Br) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) 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 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN761644DBTR Package Package Pins Type Drawing TSSOP DBT 44 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 24.4 Pack Materials-Page 1 6.8 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 11.7 1.6 12.0 24.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN761644DBTR TSSOP DBT 44 2000 367.0 367.0 45.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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