Prescaler DN8506S Prescaler IC for TV and VCR tuners ■ Overview 1 8 5.0±0.3 0.6±0.3 0.4±0.25 Unit: mm The DN8506S is a 1.1GHz prescaler IC for television and VCR tuners. It is made up of ECL flip-flop circuits divided by 128 and 136. 0.1±0.1 ■ Applications • Television, VCR 4 5 0.15 0.65 • Power dissipation: 5 V, 26 mA • The dividing ratios of 1/128, 1/136 • ECL-level output 0.3 4.2±0.3 6.5±0.3 1.5±0.2 1.27 ■ Features SOP008-P-0225A ■ Block Diagram VCC In 2 T Q T Q T Q D Q D Q D Q 1 V CC Ref. 8 RF amp. 4 GND PSC 7 PSC block GND N.C. 3 T Q T Q T Q T Q N.C. 6 D Q D Q D Q D Q 5 Out Output amp. 1 DN8506S Prescaler ■ Pin Descriptions Pin No. Description 1 VCC (5 ± 0.5 V) 2 Input 3 N.C. 4 GND 5 Output 6 N.C. 7 PSC 8 Ref. (bias) ■ Absolute Maximum Ratings Parameter Symbol Rating Unit VCC 6 V Input voltage VI 2.5 V[p-p] Power dissipation PD 361 mW Operating ambient temperature * Topr −20 to +80 °C Storage temperature * Tstg −55 to +125 °C Supply voltage Note) *: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. ■ Recommended Operating Range Parameter Symbol Range Unit VCC 4.5 to 5.5 V Supply voltage ■ Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Typ Max Unit Supply current ICC VCC = 5.0 V 26 35 mA Output amplitude VO VCC = 5.0 V, f = 1 GHz, 0 dBm 0.8 1.2 1.5 V[p-p] VIN1 VCC = 5.0 V, −24 dBm fIN = 150 MHz to 900 MHz 40 mV[p-p] VCC = 5.0 V, −18 dBm fIN = 80 MHz to 1 100 MHz 80 mV[p-p] Input voltage * VIN2 High-level input voltage VIH PSC pin 0.7 × VCC V Low-level input voltage VIL PSC pin 0.3 × VCC V Note) *: The input level that allows a stipulated frequency-devided output. 2 Min Prescaler DN8506S ■ Electrical Characteristics at Ta = 25°C (continued) • Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Supply current Input voltage * Symbol Conditions Min Typ Max Unit 42 mA ICC VCC = 5.5 V VIN1 VCC = 5.0 ± 0.5 V fIN = 150 MHz to 900 MHz 30 1 000 mV[p-p] VIN2 VCC = 5.0 ± 0.5 V fIN = 70 MHz to 1 100 MHz 60 1 000 Note) *: The input level that allows a stipulated frequency-devided output. 3