SN761677 www.ti.com SLES066A – DECEMBER 2002 TV/VCR TUNER IC WITH DC/DC CONVERTER FEATURES D Single Chip Mixer/Oscillator, Synthesizer, and DA PACKAGE (TOP VIEW) 38-PIN TSSOP (DA) 30-V DC/DC Converter for Tuning Amplifier D D D D D VHF-L, VHF-H, UHF 3-Band Local Oscillator I2C Bus Protocol Four Data Bytes Transmission Low Noise DC/DC Converter 4ch NPN Emitter Follower Type Band Switch Drivers D 4ch NPN Open Collector Type Ports D Programmable Reference Divider Ratio (31.25 kHz, 50 kHz, or 62 kHz) D 5-V Power Supply D 38-Pin TSSOP Package DESCRIPTION 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 TUVCC(5V) TUGND VDC(DC/DCout) XTAL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 UHF RF IN2 UHF RF IN1 VHF RF IN2 VHF RF IN1 RF GND MIX OUT2 MIX OUT1 BS1 BS2 BS3 BS4 P5 ADC/TEST P6 AS SDA SCL P7 P8 The SN761677 is a single-chip synthesized tuner IC designed for TV/VCR tuning systems. The circuit consists of a PLL synthesizer, 3-band local oscillators and mixer, 30-V dc/dc converter for tuning the amplifier, four NPN emitter follower band drivers, four NPN open collector ports, and is available in a small package outline. The 15-bit programmable counter and reference divider are controlled by I2C bus control. Tuning step frequency is selectable by the reference divider ratio for a 4-MHz Xtal 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 Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 2002, Texas Instruments Incorporated SN761677 www.ti.com SLES066A – DECEMBER 2002 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range unless otherwise noted(1) UNIT Supply voltage (2), VCC Input voltage 1 (2), VGND Input voltage 2 (2), V(VTU) Input voltage 3 (2), VIN Continuous total dissipation (3), PD VCC, TUVCC –0.4 V to 7 V RF GND, OSC GND, TUGND VTU (4) –0.4 V to 0.4 V –0.4 V to 35 V Other input pins –0.4 V to 7 V TA ≤ 25°C 1168 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 lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C Maximum short circuit time, tSC(max) 10 sec All pins to VCC/TUVCC, IFGND, OSCGND, RFGND, TUGND (1) 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. (2) Voltage values are with respect to the IF GND of the circuit. (3) Derating factor is 9.34 mW/°C for TA ≤ 25°C. (4) 30 V max, when input from external power supply. RECOMMENDED OPERATING CONDITIONS Supply voltage, VCC Band switch driver source current, IBS One port on NPN port sink current, INPN One port on MIN NOM MAX 4.5 5 5.5 V 10 mA –15 mA 85 °C –10 Operating free-air temperature, TA –20 UNIT CAUTION: It is advised that precautions be taken to avoid damage due to high static voltages or electrostatic fields while handling this device. UHF OSC (pins 6–9) can withstand 1.5 kV and all other pins can withstand 2 kV, according to the Human Body Model (1.5 kΩ, 100 pF). 2 SN761677 www.ti.com SLES066A – DECEMBER 2002 ELECTRICAL CHARACTERISTICS VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted)(1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Total Device and Serial Interface ICC1 ICC2 Supply current 1 (VCC) ICC3 VIH Supply current 3 (TUVCC) VIL IIH Low-level input voltage (SCL, SDA) 1.5 V High-level input current (SCL, SDA) 10 µA IIL Low-level input current (SCL, SDA) VPOR Power-on reset supply voltage Supply current 2 (VCC) One band switch on (IBS = 10 mA) IVDC = 50 µA High-level input voltage (SCL, SDA) 75 95 mA 85 105 mA 4 10 mA 3 V µA –10 Threshold of supply voltage between reset and operation mode 2.1 3.7 4 V DC/DC Converter VO(VDC) IC(VDCM) Output voltage (VDC) IVDC = 50 µA Output current (VDC) 35 V 230 µA 100 ms ts Output settling time (VDC) I2C Interface From VTUVCC > 4.5 V to VO(VDC) < 28 V VASH VASM Address select high-input voltage (AS) Address select mid-input voltage (AS) VCC = 5 V VCC = 5 V VASL IASH Address select low-input voltage (AS) VCC = 5 V IASL VI(ADC) Address select low-input current (AS) ADC input voltage See Table 9 IIH(ADH) IIL(ADL) ADC high-level input current ADC low-level input current VI(ADC) = VCC VI(ADC) = 0 V VOL Low-level output voltage (SDA) VCC = 5 V, IOL = 3 mA 0.4 V llkg(SDA) High-level output leakage current (SDA) VSDA = 5.5 V 10 µA FSCL Clock frequency (SCL) 400 kHz th(DAT) Data hold time tBUF th(STA) 4.5 5 V 2 3 V 0.5 V 10 µA Address select high-input current (AS) µA –10 0 VCC 10 V µA µA –10 100 0 µs Bus free time 1.3 µs Start hold time 0.6 µs th(low) th(lhigh) SCL low hold time 0.6 µs SCL high hold time 0.6 µs tsu(STA) tsu(DAT) Start setup time 0.6 µs Data setup time 0.1 tr tf SCL, SDA rise time tsu(STO) STOP setup time See timing chart in Figure 1 SCL, SDA fall time 0.6 µs 0.3 µs 0.3 µs µs 3 SN761677 www.ti.com SLES066A – DECEMBER 2002 ELECTRICAL CHARACTERISTICS (Continued) VCC = 4.5 V to 5.5 V, TA = –20°C to 85°C (unless otherwise noted)(1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PLL and NPN Port 14-bit frequent word 256 16383 15-bit frequent word 256 32767 N Divider ratio FXTAL ZXTAL Crystal oscillator Rxtal = 25 Ω to 300 Ω Crystal oscillator input impedance VCC = 5 V, 4 TA = 25°C MHz 2.3 kΩ VXTALIN External crystal oscillator input amplitude VO(TU) Tuning amplifier low-level output voltage RL = 27 kΩ 0.4 IIH(CPH) IIL(CPH) Charge pump high-level input current CP = 1 40 µA Charge pump low-level input current CP = 0 10 µA VO(CP) Ilkg(CPOFF) Charge pump output voltage In lock 1.95 V Charge pump leakage current T2 = 0, T1 = 1, VO(CP) = 2 V, TA = 25°C IBS VO(SBS1) Band switch driver source current VO(SBS2) Ilkg(BSOFF) INPN VO(SN1) VO(SN2) Ilkg(NPNOFF) 4 Band switch driver output voltage Band switch driver leakage current 400 IBS = 10 mA IBS = 10 mA, VCC = 5 V, TA = 25°C VBS = 0 V NPN port sink current NPN port output voltage INPN = 100 µA INPN = 10 mA NPN port leakage current VCC = 5.5 V, VNPN = 1.5 V mVp–p –15 0.7 15 nA 10 mA 3 3.5 V V 3.9 V 3 µA –15 mA 0.2 V 0.5 V 1 µA SN761677 www.ti.com SLES066A – DECEMBER 2002 ELECTRICAL CHARACTERISTICS VCC = 5 V, TA = –25°C, measured in reference measurement circuit at 50-Ω system, IF filter characteristics: fpeak = 43 MHz; (unless otherwise noted)(1) PARAMETER CONDITION MIN TYP MAX UNIT MIXER, OSCILLATOR, IF AMPLIFIER Gc1 Conversion gain (mixer (mixer~IF IF amplifier) VHF low Fin = 58 MHz(1) Fin = 130 MHz 23 26 29 dB Conversion gain (mixer (mixer~IF IF amplifier) VHF high Fin = 136 MHz(1) Fin = 364 MHz 23 26 29 dB Conversion gain (mixer~IF (mixer IF amplifier) VHF–UHF VHF UHF Fin = 370 MHz(1) Fin = 804 MHz 24 27 30 dB NF1 NF3 Noise figure VHF low Fin = 55.25 MHz Fin = 127.25 MHz 11 dB NF4 NF6 Noise figure VHF high Fin = 133.25 MHz Fin = 361.25 MHz 11 dB NF7 NF9 Noise figure UHF CM1 CM3 1% cross modulation distortion VHF low CM4 CM6 1% cross modulation distortion VHF high CM7 CM9 1% cross modulation distortion UHF VO(IF1) VO(IF3) IF output voltage VHF low VO(IF4) VO(IF6) IF output voltage VHF high Gc3 Gc4 Gc6 Gc7 Gc9 Fin = 367.25 MHz Fin = 801.25 MHz Fin = 55.25 MHz(2) Fin = 127.25 MHz Fin = 133.25 MHz(2) Fin = 361.25 MHz Fin = 367.25 MHz(2) Fin = 801.25 MHz Fin = 55.25 MHz(3) Fin = 127.25 MHz Fin = 133.25 MHz(3) Fin = 361.25 MHz Fin = 367.25 MHz(3) VO(IF7) IF output voltage UHF VO(IF9) Fin = 801.25 MHz (1) IF = 43 MHz, RF input level = 80 dBµV (2) Fundes = Fdes ± 6 MHz, pin = 80 dBµV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB (3) IF = 45.75 MHztop 10 11 dB 89 dBµV dB V 86 dBµV dB V 87 86 dB V dBµV 117 dBµV dB V 117 dBµV dB V 117 dB V dBµV 5 SN761677 www.ti.com SLES066A – DECEMBER 2002 VHF-L OSC VHF-H OSC VCC IF GND MIX OUT2 MIX OUT1 UHF OSC B2 UHF OSC C2 UHF OSC C1 UHF OSC B1 VHI OSC C VHI OSC B OSC GND VLO OSC C VLO OSC B BLOCK DIAGRAM UHF OSC IF OUT1 IF AMP VHF RF IN1 VHF RF IN2 VHF Mixer IF OUT2 UHF Mixer TUVcc UHF RF IN1 UHF RF IN2 VDC DC/DC RF GND Current Boost XTAL SCL SDA 1/8 Prescaler 1/32,1/33 Prescaler 15-Bit Counter XTAL OSC 4 MHz 512/640/1024 Divider Phase Detector TU GND 1 CP Charge Pump VTU OP AMP Band Switch / Port I2C Bus Interface AS 6 P8 P7 P6 P5 BS4 BS3 BS2 BS1 ADC/TEST 5 Level ADC SN761677 www.ti.com SLES066A – DECEMBER 2002 Terminal Functions TERMINAL NAME VLO OSC B DESCRIPTION NO. 1 VHF low oscillator input base 2 1 3k VLO OSC C 2 VHF low oscillator output collector OSC GND 3 Oscillator ground VHI OSC B 4 VHF hi oscillator input base 3k 5 4 3k VHI OSC C 5 VHF hi oscillator output collector 3k UHF OSC B1 6 UHF oscillator input base1 UHF OSC C1 7 UHF oscillator output collector1 UHF OSC C2 8 UHF oscillator output collector2 UHF OSC B2 9 UHF oscillator input base2 IF GND 10 IF ground IF OUT1 11 IF output 8 7 9 6 3k 3k 11 IF OUT2 12 IF output VCC 13 Supply voltage for mixer/oscillator/PLL: 5 V 12 7 SN761677 www.ti.com SLES066A – DECEMBER 2002 TERMINAL NAME NO. DESCRIPTION CP 14 Charge pump output VTU 15 Tuning voltage amplifier output TUVCC 16 Supply voltage for DC/DC converter: 5 V TUGND 17 DC/DC converter ground VDC 18 DC/DC converter monitor output. (Do not connect to other terminals or circuits except for the capacitor.) VDC1 15 14 XTAL 19 VDC1 18 4-MHz crystal oscillator input 16 P8 20 Port 8 output (NPN open collector) 20 P7 21 Port 7 output (NPN open collector) 21 P6 25 Port 6 output (NPN open collector) P5 27 Port 5 output (NPN open collector) SCL 22 I2C serial clock input SDA 23 I2C serial data input/output 25 27 23 22 AS 24 I2C address set input ADC/TEST 26 ADC input / test output 23 8 24 SN761677 www.ti.com SLES066A – DECEMBER 2002 TERMINAL NAME DESCRIPTION NO. BS4 28 Band switch4 output (NPN emitter follower) BS3 29 Band switch3 output (NPN emitter follower) BS2 30 Band switch2 output (NPN emitter follower) BS1 31 Band switch1 output (NPN emitter follower) MIX OUT1 32 Mixer output MIX OUT2 33 Mixer output RF GND 34 RF ground VHF RF IN1 35 VHF RF input 28 29 50k 30 31 32 5p 33 5p 36 35 3k VHF RF IN2 36 VHF RF input UHF RF IN1 37 UHF RF input 38 37 3k UHF RF IN2 38 UHF RF input 9 SN761677 www.ti.com SLES066A – DECEMBER 2002 FUNCTION DESCRIPTION The device can be controlled according to the I2C bus format. Table 1. Serial Interface Function PIN PIN NAME DESCRIPTION 22 SCL Clock input 23 SDA Data input/output 24 AS Address selection input 26 ADC/TEST ADC input, test output 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 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 1 CP T2 T1 T0 RSA RSB OS A P8 P7 P6 P5 BS4 BS3 BS2 BS1 A Control byte (CB) Ports byte (PB) Table 3. Description of Data Symbol SYMBOL DESCRIPTION DEFAULT MA1, MA0 Address set bits (See Table 4) N14...N0 Programmable counter set bits N=N14x2^14+N13x2^13+..+N1x2+N0 Nn=0 CP Charge pump current set bit 10 µA (CP=0) 40 µA (CP=1) CP=1 T2, T1, T0 Test bits (See Table 5) Normal mode: T2=0, T1=0, T0=1/0 T2=0, T1=0, T0=0 RSA, RSB Reference divider ratio selection bits (See Table 6) RSA=0, RSB=1 OS Tuning amplifier control bit Tuning voltage ON (OS=0) Tuning voltage OFF, high impedance (OS=1) OS=0 BS4...BS1 Band switch ports control bits BSn=0:Tr=OFF BSn=1:Tr=ON Band selection by BS1, 2, 4 (x: don’t care) BS1 BS2 BS4 VHF–Lo 1 0 0 VHF–Hi x 1 0 UHF x x 1 BSn=0 P8...P5 NPN open collector ports control bits Pn=0: Tr=OFF Pn=1: Tr=ON Pn=0 X Don’t care NOTE: A: Acknowledge Table 4. Address Selection VOLTAGE APPLIED ON AS INPUT 10 MA1 MA0 0 V to 0.1 VCC 0 0 Always valid 0 1 0.4 VCC to 0.6 VCC 1 0 0.9 VCC to VCC 1 1 SN761677 www.ti.com SLES066A – DECEMBER 2002 Table 5. Test BIts T2 T1 T0 FUNCTION 0 0 0 Normal operation 0 0 1 Normal operation 0 1 X Charge pump off 1 1 0 Charge pump sink 1 1 1 Charge pump source 1 0 X Test mode Default Not available ADC Table 6. Ratio Select Bits RSA RSB REFERENCE DIVIDER RATIO X 0 640 0 1 1024 1 1 512 I2C Read Mode (R/W = 1) Table 7. Read Data Format MSB Address byte (ADB) Status byte (SB) NOTE: A: Acknowledge LSB 1 1 0 0 0 MA1 MA0 R/W=1 A POR FL 1 1 1 A2 A1 A0 A Table 8. Description of Data Symbol SYMBOL MA1, MA0 POR DESCRIPTION DEFAULT Address set bits (see Table 4) Power-on reset flag POR Set: Power on POR Reset: End-of-data transmission procedure FL POR=1 In-lock flag PLL lock (FL=1) Unlock (FL=0) A2...A0 Digital data of ADC (see Table 9) Table 9. ADC Level VOLTAGE APPLIED ON ADC INPUT A2 A1 A0 0.6 VCC to VCC 1 0 0 0.45 VCC to 0.6 VCC 0 1 1 0.3 VCC to 0.45 VCC 0 1 0 0.15 VCC to 0.3 VCC 0 0 1 0 0 0 0 VCC to 0.15 VCC (1) Accuracy is 0.03 x VCC. 11 SN761677 www.ti.com SLES066A – DECEMBER 2002 tsu(STA) th(STA) tHIGH tf SCL tLOW tsu(DAT) tr SDA tBUF th(DAT) Figure 1. I2C Timing Chart 12 tsu(STO) SN761677 www.ti.com SLES066A – DECEMBER 2002 APPLICATION INFORMATION C50 C3 R1 VC1 C1 C38 1 VLOOSCB UHFRFIN2 38 VLOOSCC UHFRFIN1 37 OSCGND VHFRFIN2 36 URF2 C2 2 L1 3 C6 R2 VC2 R30 C35 URF1 VRF2 C37 C4 C36 4 VHIOSCB VHFRFIN1 35 VRF1 C5 R4 L2 C34 5 VHIOSCC 6 RFGND 34 UHFOSCB1 MIXOUT2 33 L10 7 UHFOSCC1 MIXOUT1 32 L9 8 UHFOSCC2 BS1 31 UHFOSCB2 BS2 30 10 IFGND BS3 29 11 IFOUT1 BS4 28 12 IFOUT2 P5 27 13 VCC ADC/TEST 26 C33 C7 L3 C8 VC3 R5 L4 C11 C9 C12 C21 LB C10 9 HB C13 IF OUT1 UB R21 C14 R31 R10 Vcc:5V C39 R8 C16 R19 ADC C17 C18 C64 14 CP P6 25 R7 R18 15 C20 VTU AS 24 R17 C65 TUVcc:5V R101 16 TUGND VDC SDA 23 R16 C19 17 C101 TUVCC TUGND SCL AS SDA 22 SCL C23 R201 C201 18 VDC P7 21 19 XTAL P8 20 X1 C24 (1) It is recommended that designers be careful with the PCB layout and coupling to minimize the effects of the higher harmonics of Xtal oscillation from the dc/dc converter section (pin 16–20) to mixer and oscillator section. Figure 2. Reference Measurement Circuit 13 SN761677 www.ti.com SLES066A – DECEMBER 2002 COMPONENT VALUES FOR MEASUREMENT CIRCUIT (TENTATIVE) PART NAME 14 VALUE C1, C2, C4 1 pF C3 47 pF C5 1.5 pF C6 56 pF C7–C10 1 pF (axial ceramic) C11 100 pF C12 13 pF (axial ceramic) C13, C14, C16, C17, C19–C21, C34–C39, C64, C101 2.2 nF C18, C23 0.047 µF C24 68 pF C33 18 pF C41, C60, C62, C201 Not mounted C50 3 pF R1 , R2, R4, R5, R8 33 kΩ R7 100 kΩ R10, R21, R101, R201 0Ω R16–R19 330 Ω R30 20 Ω R31 50 Ω L1 2.6φ, 8T, wire 0,3 mm L2 2.4φ, 4T, wire 0,4 mm L3 2.8φ, 2T, wire 0,4 mm L4 2.1φ, 3T, wire 0,4 mm L9, L10 2.5φ, 16T, wire 0,25 mm VC1, VC2, VC3 1T363A X1 4 MHz SN761677 www.ti.com SLES066A – DECEMBER 2002 TEST CIRCUIT Signal Generator Spectrum Analyzer DUT Figure 3. Measurement Circuit of Conversion Gain NF Meter Noise Source DUT Figure 4. Noise Figure Measurement Circuit Signal Generator Fdes: P = 80 dBµV Mix Pad DUT Modulation Analyzer Fdes ±6 MHz AM30%, 1kHz Signal Generator Figure 5. 1% Cross Modulation Distortion Measurement Circuit 15 SN761677 www.ti.com SLES066A – DECEMBER 2002 S-PARAMETER Figure 6. VHF Input Figure 7. UHF Input 16 SN761677 www.ti.com SLES066A – DECEMBER 2002 Figure 8. IF Output Figure 9. Band Switch Driver Output Voltage (BS1–BS4) 17 SN761677 www.ti.com SLES066A – DECEMBER 2002 MECHANICAL DATA DA (R-PDSO-G**) PLASTIC SMALL-OUTLINE 38 PINS SHOWN 0,30 0,19 0,65 38 0,13 M 20 6,20 NOM 8,40 7,80 0,15 NOM Gage Plane 1 19 0,25 A 0°–ā8° 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 30 32 38 A MAX 11,10 11,10 12,60 A MIN 10,90 10,90 12,40 DIM 4040066/ D 11/98 NOTES: A. B. C. D. 18 All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-153 MECHANICAL DATA MPDS019D – FEBRUARY 1996 – REVISED FEBRUARY 2002 DBT (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 30 PINS SHOWN 0,50 0,27 0,17 30 16 0,08 M 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 15 0°–ā8° 0,75 0,50 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 20 24 28 30 38 44 50 A MAX 5,10 6,60 7,90 7,90 9,80 11,10 12,60 A MIN 4.90 6,40 7,70 7,70 9,60 10,90 12,40 DIM 4073252/E 02/02 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MTSS002C – JANUARY 1995 – REVISED DECEMBER 1998 DA (R-PDSO-G**) PLASTIC SMALL-OUTLINE 38 PINS SHOWN 0,30 0,19 0,65 38 0,13 M 20 6,20 NOM 8,40 7,80 0,15 NOM Gage Plane 1 19 0,25 A 0°– 8° 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 30 32 38 A MAX 11,10 11,10 12,60 A MIN 10,90 10,90 12,40 DIM 4040066 / D 11/98 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 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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