U6101B IF System and I/Q Demodulator for Digital Satellite TV Transmissions Description The U6101B is a monolithic integrated circuit in TEMIC’s UHF 5 technology for Satellite Digital Video Broadcasting (DVBS) and other digital direct satellite service applications. The circuit operates in a wide frequency range and in a large input level range. isolated inputs, and an AGC-system for tuner and IF level control. Alternatively the output level may be controlled automatically, e.g., via the channel decoder AGC signal output. Implemented are two orthogonal mixer stages (precise phase-matched by a control loop), a gain-controlled IF amplifier of high input sensitivity with two switchable The local oscillator operates at IF input frequency. The oscillator signal is internally doubled and divided again to generate the orthogonal mixer driving signals. Features Benefits D Frequency range from 390 to 520 MHz D Two unbalanced switchable inputs D High I/Q phase accuracy, based on TEMIC’s patented D Two switchable IF-inputs to connect a combined 0°/90° control loop circuit D D D D D SAW filter D Oscillator for SAW or LC tank circuit D Adjustable tuner AGC control Input impedance 50 Ω, gain independent D Low impedance output driver High input sensitivity AGC control range –35 dB D Balanced prescaler output Internal AGC detector D Output signal level adjustable or fixed at typical or Additionally external gain control and output level setting possible minimum data sheet value by pin programming D Low power consumption, 5-V supply voltage Ordering Information Extended Type Number U6101B-AFSG3 TELEFUNKEN Semiconductors Rev. A1, 14-May-97 Package SSO20 Remarks Taped and reeled 1 (7) Preliminary Information U6101B Block Diagram 12613 19 1 20 12 Bias circuit 9 11 2 8 4 10 3 17 18 32 7 14 15 6 VCO f → 2f Divider + 90° control 16 5 13 Figure 1. Pin Description VCCRF 1 20 VCC IF1 2 19 GND DECI 3 18 PRSO IF2 4 17 PRSO TUD 5 16 GNDO AGCT 6 15 FEDO AGCS 7 14 INPO 13 ELS GND 8 INS 9 12 VCCPA 11 OUTI OUTQ 10 12634 Figure 2. Pinning ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Symbol VCCRF IF1 DECI IF2 TUD AGCT AGCS GND INPS OUTQ OUTI VCCPA ELS INPO FEDO GRDO PRSO PRSO GND VCC 2 (7) Preliminary Information Function RF supply voltage IF input 1 Input decoupling IF input 2 Delayed tuner AGC current out Tuner AGC take over AGC storage capacitor Ground Input select Baseband Q output Baseband I output Supply voltage power amplifier External output level set Oscillator input Oscillator feedback Oscillator ground Prescaler output Prescaler output Ground Supply voltage TELEFUNKEN Semiconductors Rev. A1, 14-May-97 U6101B Absolute Maximum Ratings All voltages are referred to GND (Pin 13) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Supply voltage Pins 1, 12 and 20 Signal inputs external DC current Signal outputs external DC voltage Signal outputs DC current Maximum AGC voltage Tuner AGC current Maximum prescaler output current Junction temperature Storage temperature Pins 2 and 4 Pins 10 and 11 Pins 10 and 11 Pin 5 Pin 5 Pins 17 and 18 Symbol VCCRF VCCPA VCC IF1, IF2 OUT OUT TUD TUD PRSO Tj Tstg Min. –0.3 Typ. –0.2 –0.3 –0.3 0 –40 –40 Max. 6.0 Unit V 0.2 VCC 8.0 VCCRF 2.0 10 150 125 mA V mA V mA mA °C °C Operation Range All voltages are referred to GND (Pin 13) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Supply voltage Pins 1, 12 and 20 Ambient temperature Input frequency Pins 13 and 14 Symbol VCCRF VCCPA VCC Tamb IFin Min. 4.5 Typ. 0 390 Max. 5.5 Unit V 70 520 °C MHz Thermal Resistance ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Junction ambient TELEFUNKEN Semiconductors Rev. A1, 14-May-97 Symbol RthJA Min. Typ. Max. Unit K/W 3 (7) Preliminary Information U6101B Electrical Characteristics Test conditions: VSRF = +5 V, Tamb = +25°C, unless otherwise specified ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Á ÁÁÁ Á ÁÁÁ Á ÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Parameters Supply current IF input Impedance Operation range Sensitivity Second order intercept Third order intercept p Noise figure SSB AGC range Oscillator phase noise Prescaler output amplitude Test Conditions / Pins Pins 1, 12 and 20 Pins 2 and 4 Symbol IS Z0 fIF fIF IP2 IP3 IP3 NF fIF = 480 MHz Note 1 Note 1 Note 2 Min. 390 50 480 57 Max. Unit mA 520 MHz dBµV dBµV dBµV dBµV dB dB dBc/Hz VPP 1.1 VPP 1.0 VPP VPP 76 80 110 10 –35 10 kHz offset Pins 17 and 18 Note 4 –80 1.0 Pins 10 and 11 0.9 Pins 10 and 11 Pin 12 1.5 0.6 Baseband outputs Amplitude Typ. 40 1.0 Note 5 Maximum amplitude External level adjust Note 3 Bandwidth ± 0.25 dB, Pins 10 and 11 fout 20 Note 4 ± 1.0 dB, note 4 30 Relative phase error Output I vs. Q, note 3 Pins 10 and 11 Relative amplitude error Output I vs. Q, note 3 Input isolation Input 1 vs. input 2 –30 Pins 2 and 4 Spurious oscillator at outputs (LC tank, 480 MHz, internal leveled, note 6, Pins 10 and 11) Spurious at fosc VCC = 4.5 to 5.5 V <–40 Spurious at 2 fosc <–40 Oscillator frequency drift Dfosc 200 MHz 3 0.5 MHz Degree dB dB dBc dBc kHz 1) AGC set for maximum gain 4) Load impedance 220 Ω in series to 2,2 kΩ | | 47 pF 2) AGC set for minimum gain 5) 3) External AGC setting, see application circuit figure 2 Internal AGC function activated, see application circuit figure 1 6) see test circuit 4 (7) Preliminary Information TELEFUNKEN Semiconductors Rev. A1, 14-May-97 U6101B Functional Description The input signal is via two single ended constant gain amplifiers with selectable inputs connected to a gain controlled amplifier. The differential output signal remains of constant amplitude to provide behind splitting up optimised dynamic operation points for a pair of identical mixers. The mixer stages are driven by two orthogonal oscillator signals, to generate the I- and Qcomponents. * * mize tilt. The output stages may drive complex loads up to 220 Ω in series to 2.2 kΩ and 50 pF in a frequency range up to 40 MHz. The oscillator operates at IF-frequency. Therefore control by an on the shelf SAW resonator is possible. Using the internal 1/32 frequency divider circuit a VCO carrier recovery loop can be closed via the base band decoding system. To avoid fast system lock in time and driving the A/D converters with defined output levels, in one channel the output signal will be peak-level detected and in an internally loop level controlled. So the output signal amplitudes are independent of frequency and characteristic of the QPSK modulation. The output level can be set via an external potentiometer (or at two fixed levels by pin programming) according the actual application. External loop control by a channel decoder generated AGC signal is provided. Excellent accuracy of 0°/90° phase shifting between the demodulator switching carriers is provided by a TEMIC patented phase correction circuit, which operates in a wide input frequency range. The DC-component of the AGC loop affects the IF input level. This signal is internally compared with a adjustable threshold and generates a tuner AGC signal. Two matched amplifiers with second order lowpass characteristic to suppress oscillator spurious ensure small gain and phase errors between both channels and mini- Small tolerances based on high DC operation point stability and good spurious signal suppression are performed by an internal reference voltage source. Basic Application Circuit 4.7 W +5 V 10 nF 10 nF 1 nF 100 pF 19 1 12608 20 12 100 pF 3 Bias circuit 11 100 nF A/D 2 Tuner Channel decoder 8 100 pF 4 10 9 17 18 10 pF A/D B32 22 nH 10 pF 7 14 6 15 VCO 2.2 pF 100 nF f → 2f Divider + 90° control 100 nF 5 13 16 SW 2 +5 V Figure 3. Internal AGC loop, output level optional changeable 0.6 Vpp to 1 Vpp by control voltage at Pin 13, VCO carrier recovery TELEFUNKEN Semiconductors Rev. A1, 14-May-97 5 (7) Preliminary Information U6101B 4.7 W +5 V 10 nF 10 nF 1 nF 100 pF 100 pF Tuner 100 pF 19 3 1 20 12609 12 Bias circuit 11 100 nF A/D 2 Channel decoder 8 100pF 4 10 A/D 9 AGC in 17 SW 1 18 10 pF B32 7 14 +5 V 15 22 nH AGC out (PWM) 100 nF +5 V 6 VCO Divider + 90° control f → 2f 5 16 10 pF 100 kW 100 nF 13 4.7 kW 2.2 pF Figure 4. AGC set by channel decoder, fixed VCO frequency SAW resonator carrier recovery, dual bandwidth IF filter, SW1 selects input Package Information Package: Super small outline plastic package, 20 pin – SSO20 Dimensions in mm 6.75 6.50 5.7 5.3 4.5 4.3 1.30 0.25 0.65 20 5.85 0.15 0.15 0.05 6.6 6.3 11 technical drawings according to DIN specifications 95 11234 1 10 6 (7) Preliminary Information TELEFUNKEN Semiconductors Rev. A1, 14-May-97 U6101B Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 14-May-97 7 (7) Preliminary Information