99W120B Video Switch for Canal+ BH7636S Description Dimension (Units : mm) The BH7636S includes two video switches, one for clamp input and the second for bias input. The I2C Bus* for switch control simplifies applications, while the two expansion ports allow up to two external inputs. Features * 1) I2C-BUS control 2) Video input is sync-tip clamped 3) Three FSCOUT 4) Two expansion ports 5) Mute function (bias) 6) 75Ω driver output (pins 20 and 23) requires no attached capacitor. 7) Low value input capacitor : 0.022µ F SDIP24 * I2C-BUS is a trade mark of PHILIPS Inc. Applications VCRs Absolute Maximum Ratings (Ta=25 ˚C) Parameter Supply voltage Symbol Limits Unit Power dissipation VCC Pd 13.5 V Operating temperature range Topr –25 ~ +60 ˚C Storage temperature range Tstg –55 ~ +125 ˚C 1200 * mW * Derating : 12mW/ ˚C for operation above Ta=25 ˚C. Recommended Operatingn Conditions (Ta=25 ˚C) Parameter Operating supply voltage Symbol VCC Min. Typ. Max. Unit 8.5 12 13 V February, 2000 Electrical Characteristics (Unless otherwise noted, Ta=25˚C, Vcc= 12V) Parameter Symbol Min. Typ. Max. Unit Conditions ICC 30 46 62 mA FSCOUT High voltage VFSCH 11.0 11.8 12.0 V RL=10kΩ FSCOUT Middle voltage VFSCM 5.2 5.9 6.8 V RL=10kΩ FSCOUT Low voltage VFSCL 0 0.2 1.0 V RL=10kΩ FSCOUT limit current IFSC — — 20 mA VFSCO=10kΩ External control terminal sink current ISYN 1.0 — — mA RL=10kΩ External control terminal Low voltage VAUXL 0 0.2 1.0 V RL=10kΩ GVV –1 0 1 dB VIN=1VP-P, f=4.43MHz VF –3 0 1 dB VIN=1VP-P, f=100k/7MHz <Whole device> Circuit current No signal <Clamp input video switch> Voltage gain Frequency characteristic <Bias input video switch> Voltage gain GVA –1.5 0 1.5 dB VIN=2VP-P, f=4.43MHz Frequency characteristic VF –1.5 0 1.5 dB VIN=2VP-P, f=100k/5MHz Input impedance ZIN 40 50 60 kΩ High level voltage VH 3.0 — — V Low level voltage VL 0 — 1.5 V <Control> Note) I2C-BUS input specification Block Diagram