U2781B Frequency Synthesizer Description The programmable frequency synthesizer IC U2781B for µP-controlled application is realized with TEMIC’s advanced UHF process which is very suitable for combinations of fast ECL logic and low-current I2L logic. The benefits are high input sensitivity in connection with low power consumption and therefore small packages (SSO20). This makes the device a perfect choice for cordless phones and handheld cellular radio sets up to 1.1 GHz. Features Benefits D D D D D D D D D D Very low current consumption extends talk time D Few external components and SSO package save costs Electrostatic sensitive device. Observe precautions for handling. Very low current consumption (typ. 3 V/ 5 mA) Supply voltage range: 2.7 to 5.5 V Max. input frequency: 1.1 GHz Programmable prescaler 64/ 65 or 128/ 129 Controlled by 3-wire bus with fclock up to 500 kHz Status output for PLL lock/ unlock condition Very fast phase detector SSO20 package ESD protection in accordance with MIL-STD. 883 method 3015 class 2 and space Block Diagram Osci Osco 1 Oscillator 14-bit reference counter 17 15-bit latch 8 Mo 3 LDo VS 5 GND VSCP 7 Clock 11 Data 13 Enable 14 4 1-bit latch load control 18-bit shift register Phase detector Charge pump CP 6 18-bit latch RFi 10 Prescaler 64/65 128/129 7-bit swallow counter 15 PS 11-bit main counter 93 7785 e Figure 1. Block diagram Ordering Information Extended Type Number U2781B-AFS U2781B-AFSG3 TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 Package SS020 SS020 Remarks Rail, MOQ 830 pcs Tape and reel, MOQ 4000 pcs 1 (10) U2781B Functional Description The IC is controlled by a 3-wire bus with Clock, Data and Enable inputs for programming the scaling factors of the programmable counter, the reference counter and the prescaler. should be left open. A TCXO can be connected to the oscillator input (OSCi) as an alternative solution to the common crystal reference oscillator. In that case, the oscillator output (OSCo) The phase characteristic of the phase detector is convertible and thus matchable to different frequency/ tuning voltage characteristics. The charge pump-output operates as switched current sources. The characteristics of the phase-locked loop can be determinated by the external low-pass filter. Pin Description NC Osci 1 20 NC 2 19 NC Osco 3 18 NC VSCP 4 17 Mo VS 5 16 NC CP 6 15 PS GND 7 14 Enable LDo 8 13 Data NC 12 NC 9 11 Clock RFi 10 14775 Figure 2. Pinning ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Symbol Osci NC Osco VSCP Vs CP GND LDo NC RFi Clock NC Data Enable PS NC Mo NC NC NC Function Oscillator input Not connected Oscillator output Charge-pump supply voltage Supply voltage Charge-pump output Ground Lock-detector output Not connected VCO input 3-wire bus Clock Not connected 3-wire bus Data 3-wire bus Enable Phase select input Not connected Monitor output for fp and fr Not connected Not connected Not connected Absolute Maximum Ratings ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Supply voltage RF input Oscillator input voltage Oscillator output voltage Bus input voltage Phase-select input voltage Charge-pump input voltage Storage temperature 2 (10) Symbol VS VRF VOsci VOsco VBUS VPS VSCP Tstg Value – 0.3 to 6 VS 1 1.5 6 6 6 – 40 to 125 Unit V V V V V V V °C TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 U2781B Operating Range ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Thermal Resistance ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Symbol VS Tamb Value 2.7 to 5.5 – 40 to 85 Unit V °C Parameters SSO20 Symbol RthJA Value 140 Unit K/W Supply voltage Ambient temperature Junction ambient Electrical Characteristics Tamb = 25_C, VS = 2.7 to 5.5 V, unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ W Parameters DC supply Supply voltage Supply current Supply voltage CP Supply current CP RF input Input voltage fi = 200 to 1100 MHz Frequency range Scaling factor prescaler Scaling factors main counter Scaling factors swallow counter Reference oscillator Input voltage Test Conditions / Pin Vs = 3 V VCP = 5 V, PLL in locked condition Rs = 50 Ω *) Rs = 50 Ω *) Rs = 50 Ω *) Rs = 50 Ω *) Frequency range Scaling factor reference counter 3-wire bus (Clock, Data, Enable) and PS High input voltage Low input voltage High input current Low input current Monitor output (Emitter follower) High output voltage Vs = 3 V Low output voltage IMO = 0.5 mA Charge-pump output Source current VCP = 5 V Sink current Leakage current VCP = 5 V Lock-detektor output (open collector) Saturation voltage ILD = 1 mA Leakage current VLD = 5 V Symbol Min Vs Is VSCP ISCP 2.7 Vimin Vimax fimin fimax SPSC SM SS Vimin Vimax fimin fimax SR Typ Max Unit 5.5 V mA V µA 5 Vs 5.5 1 1100 20 200 50 1250 64/128 4 0 mVRMS mVRMS MHz MHz 2047 127 20 200 0,1 20 4 ViH ViL IiH IiL 1.5 0 ViH ViL 2.1 mVRMS mVRMS MHz MHz 16383 0.9 0.4 5 –5 2.2 1.8 Isource Isink Ileak –1 1 ±5 Vsat Ileak 0.2 5 1.9 V V µA µA V V mA mA nA 0.4 V nA *) RMS voltage at 50 TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 3 (10) U2781B Functional Description The reference- and the programmable counter can be programmed by the 3-wire bus (Clock, Data and Enable). The Data Signal is transfered bit by bit into the shift register during the rising edge, starting with the MSB-bit. As soon as the enable signal is in high condition, the content of the shift register will be taken over either into the 15-bit reference counter latch (C = H) or into the 18-bit latch of the programmable counter (C = L) Reference Counter (15bit shift register) ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁÁ ÁÁ Á ÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁÁ LSB C MSB R0 R1 R2 R3 R4 R5 R6 R7 C: Control bit High PSC: Prescaler scaling factor bit: High – 64/65 Low – 128/129 SPSC = 64 or 128 R0 to R13: These bits are setting the reference counter SR SR = R0 20 + R1 21 + to + R12 212 + R13 permitted scaling factors for SR: 4 to 16383 R8 R9 R10 R11 R12 R13 PSC 213 Programmable Counter (18-bit shift register) ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁ ÁÁ ÁÁÁÁ LSB C MSB S0 S1 S2 S3 S4 S5 S6 M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 Control bit Low These bits are setting the swallow counter SS. SS = S0 20 + S1 21 + to + S5 25 + S6 26 permitted scaling factors for SS: 0 to 127, SS < SM M0 to M10 : These bits are setting the main counter SM. SM = M0 20 + M1 21 + to + M9 29 + M10 permitted scaling factors for SM: 4 to 2047 M10 C: S0 to S6: 210 Total scaling factor SP of the programmable counter SP = (SPSC SM) + SS Condition: SS < SM VCO Frequency fVCO = ((SPSC 4 (10) SM) + SS) fRefOsc / SR TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 U2781B Timing 3-Wire Bus MSB P 17 PSC P 16 R 13 P9 R7 P8 R6 P0 R0 LSB C = 0 : Prog. scaler data C = 1 : Reference scaler date Data Clock Enable t5 t1 t3 t2 t4 All times t1 to t5 > 1 ms 93 7787 e Figure 3. Phase-Detector Polarity The polarity of the phase detector can be changed with the PS input. Depending on the PS input level, the chargepump current will also be inverted. The monitor output signal MO (emitter follower output with ECL level) will be switched over from fP to fR simultanously. ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ fR > fP fR < fP fR = fP PS = High or Open CP MO Isink fR Isource fR 0 fR PS = Low CP Isource Isink 0 MO fP fP fP Depending on the VCO frequency versus tuning voltage characteristic, the PS input has to be programmed as follows: For increasing tuning voltage and increasing frequency: decreasing frequency: TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 PS = High or open PS = Low. 5 (10) U2781B Pulse Diagram Phase and Lock Detector fp (fvco/Tp) fr (fosc/Tp) Vcp LD 93 7786 e Figure 4. The LD output is in unlocked condition at low level and the pulsewidth is in reference to the phase respectively frequency difference at the phase detector. If the phase detector output pulses are smaller than 100 ns, the LD output goes high and indicates “lock” condition. Test Circuit Input sensitivity Enable Data Clock 10 k Frequency Counter Monitor U2781B VS = 3 V 1m 10 n 1n RF Test Generator 94 8904 Figure 5. 6 (10) TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 U2781B Typical Input Sensitivity 1000 mVRMS ( 50 Ohm) 500 dBm ( 50 Ohm) +10 +5 0 200 –5 100 – 10 50 – 15 – 20 20 – 25 10 – 30 5 – 35 2 – 40 1 – 45 – 50 .5 – 55 – 60 .2 – 65 .1 0 200 400 93 7789 e 600 800 1000 1200 1400 1600 Frequency ( MHz ) Figure 6. Application Circuit Enable Data Clock 94 8905 U2781B alternatively to 1n 10n VCO external TCXO LD 10k 2 x 10p VSCP = 3 to 6 V VS = 3 V 1m Tuning voltage 10n Loop filter 1m 10n Figure 7. TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 7 (10) U2781B Input Impedance j 0.5j 2j 5j 0.2j ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ 0 0.2 0.5 1 Á Á 2 Á Á 1 5 100 MHz –0.2j –5j 500 MHz 1 GHz –0.5j –2j 1.5 GHz Z0 = 50 W 96 11685 –j Figure 8. 8 (10) TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 U2781B Package Information Package SSO20 5.7 5.3 Dimensions in mm 6.75 6.50 4.5 4.3 1.30 0.15 0.15 0.05 0.25 6.6 6.3 0.65 5.85 20 11 technical drawings according to DIN specifications 13007 1 TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97 10 9 (10) U2781B 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 10 (10) TELEFUNKEN Semiconductors Rev. A3, 26-Nov-97